Class.java revision d5178dc78b33c1d97af57b9ab047aa69717bc039
12cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom/* 22cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Licensed to the Apache Software Foundation (ASF) under one or more 32cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * contributor license agreements. See the NOTICE file distributed with 42cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * this work for additional information regarding copyright ownership. 52cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * The ASF licenses this file to You under the Apache License, Version 2.0 62cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * (the "License"); you may not use this file except in compliance with 72cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * the License. You may obtain a copy of the License at 82cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 92cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * http://www.apache.org/licenses/LICENSE-2.0 102cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 112cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Unless required by applicable law or agreed to in writing, software 122cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * distributed under the License is distributed on an "AS IS" BASIS, 132cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 142cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * See the License for the specific language governing permissions and 152cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * limitations under the License. 162cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 172cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom/* 182cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Copyright (C) 2006-2007 The Android Open Source Project 192cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 202cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Licensed under the Apache License, Version 2.0 (the "License"); 212cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * you may not use this file except in compliance with the License. 222cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * You may obtain a copy of the License at 232cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 242cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * http://www.apache.org/licenses/LICENSE-2.0 252cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 262cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Unless required by applicable law or agreed to in writing, software 272cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * distributed under the License is distributed on an "AS IS" BASIS, 282cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 292cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * See the License for the specific language governing permissions and 302cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * limitations under the License. 312cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 322cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 332cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrompackage java.lang; 342cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 352cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstromimport com.android.dex.Dex; 362cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstromimport dalvik.system.VMStack; 372cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstromimport java.io.InputStream; 382cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstromimport java.io.Serializable; 392cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstromimport java.lang.annotation.Annotation; 402cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstromimport java.lang.reflect.AccessibleObject; 412cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstromimport java.lang.reflect.AnnotatedElement; 4271dc4f7d4829335f7aba5414b43d16cd316ba22fBrian Carlstromimport java.lang.reflect.ArtMethod; 432cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstromimport java.lang.reflect.Constructor; 442cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstromimport java.lang.reflect.Field; 452cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstromimport java.lang.reflect.GenericDeclaration; 462cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstromimport java.lang.reflect.InvocationTargetException; 472cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstromimport java.lang.reflect.Member; 482cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstromimport java.lang.reflect.Method; 492cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstromimport java.lang.reflect.Modifier; 502cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstromimport java.lang.reflect.Type; 512cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstromimport java.lang.reflect.TypeVariable; 522cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstromimport java.net.URL; 535346a96c353933579db184a8433fc0cc1e076950Narayan Kamathimport java.nio.charset.StandardCharsets; 542cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstromimport java.security.ProtectionDomain; 552cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstromimport java.util.ArrayList; 562cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstromimport java.util.Arrays; 57eb183cdeab97f7fb25ae804319c1f5a46353dc4fMathieu Chartierimport java.util.Collections; 582cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstromimport java.util.List; 592cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstromimport libcore.reflect.AnnotationAccess; 602cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstromimport libcore.reflect.GenericSignatureParser; 612cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstromimport libcore.reflect.InternalNames; 622cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstromimport libcore.reflect.Types; 63a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogersimport libcore.util.BasicLruCache; 642cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstromimport libcore.util.CollectionUtils; 652cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstromimport libcore.util.EmptyArray; 66793b9ef91876cb7bea31ddf74f110ac45302f1ddJeff Haoimport libcore.util.SneakyThrow; 672cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 682cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom/** 692cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * The in-memory representation of a Java class. This representation serves as 702cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * the starting point for querying class-related information, a process usually 712cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * called "reflection". There are basically three types of {@code Class} 722cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * instances: those representing real classes and interfaces, those representing 732cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * primitive types, and those representing array classes. 742cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 752cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * <h4>Class instances representing object types (classes or interfaces)</h4> 762cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * <p> 772cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * These represent an ordinary class or interface as found in the class 782cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * hierarchy. The name associated with these {@code Class} instances is simply 792cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * the fully qualified class name of the class or interface that it represents. 802cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * In addition to this human-readable name, each class is also associated by a 812cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * so-called <em>descriptor</em>, which is the letter "L", followed by the 822cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * class name and a semicolon (";"). The descriptor is what the runtime system 832cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * uses internally for identifying the class (for example in a DEX file). 842cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * </p> 852cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * <h4>Classes representing primitive types</h4> 862cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * <p> 872cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * These represent the standard Java primitive types and hence share their 882cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * names (for example "int" for the {@code int} primitive type). Although it is 892cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * not possible to create new instances based on these {@code Class} instances, 902cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * they are still useful for providing reflection information, and as the 912cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * component type of array classes. There is one {@code Class} instance for each 922cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * primitive type, and their descriptors are: 932cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * </p> 942cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * <ul> 952cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * <li>{@code B} representing the {@code byte} primitive type</li> 962cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * <li>{@code S} representing the {@code short} primitive type</li> 972cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * <li>{@code I} representing the {@code int} primitive type</li> 982cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * <li>{@code J} representing the {@code long} primitive type</li> 992cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * <li>{@code F} representing the {@code float} primitive type</li> 1002cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * <li>{@code D} representing the {@code double} primitive type</li> 1012cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * <li>{@code C} representing the {@code char} primitive type</li> 1022cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * <li>{@code Z} representing the {@code boolean} primitive type</li> 1032cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * <li>{@code V} representing void function return values</li> 1042cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * </ul> 1052cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * <p> 1062cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * <h4>Classes representing array classes</h4> 1072cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * <p> 1082cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * These represent the classes of Java arrays. There is one such {@code Class} 1092cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * instance per combination of array leaf component type and arity (number of 1102cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * dimensions). In this case, the name associated with the {@code Class} 1112cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * consists of one or more left square brackets (one per dimension in the array) 1122cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * followed by the descriptor of the class representing the leaf component type, 1132cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * which can be either an object type or a primitive type. The descriptor of a 1142cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * {@code Class} representing an array type is the same as its name. Examples 1152cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * of array class descriptors are: 1162cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * </p> 1172cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * <ul> 1182cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * <li>{@code [I} representing the {@code int[]} type</li> 1192cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * <li>{@code [Ljava/lang/String;} representing the {@code String[]} type</li> 1202cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * <li>{@code [[[C} representing the {@code char[][][]} type (three dimensions!)</li> 1212cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * </ul> 1222cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 1232cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrompublic final class Class<T> implements Serializable, AnnotatedElement, GenericDeclaration, Type { 1242cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 1252cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom private static final long serialVersionUID = 3206093459760846163L; 1262cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 127d5178dc78b33c1d97af57b9ab047aa69717bc039Brian Carlstrom /** defining class loader, or null for the "bootstrap" system loader. */ 1282cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom private transient ClassLoader classLoader; 1292cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 1302cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 1312cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * For array classes, the component class object for instanceof/checkcast (for String[][][], 132d5178dc78b33c1d97af57b9ab047aa69717bc039Brian Carlstrom * this will be String[][]). null for non-array classes. 1332cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 1342cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom private transient Class<?> componentType; 1352cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 136d5178dc78b33c1d97af57b9ab047aa69717bc039Brian Carlstrom * DexCache of resolved constant pool entries. Will be null for certain runtime-generated classes 1372cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * e.g. arrays and primitive classes. 1382cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 1392cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom private transient DexCache dexCache; 1402cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 1413d38e8203d344acc9acd63c377b6a53683e1df67Mathieu Chartier /** Short-cut to dexCache.strings */ 1423d38e8203d344acc9acd63c377b6a53683e1df67Mathieu Chartier private transient String[] dexCacheStrings; 1433d38e8203d344acc9acd63c377b6a53683e1df67Mathieu Chartier 1442cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** static, private, and <init> methods. */ 14571dc4f7d4829335f7aba5414b43d16cd316ba22fBrian Carlstrom private transient ArtMethod[] directMethods; 1462cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 1472cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 1482cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * The interface table (iftable_) contains pairs of a interface class and an array of the 1492cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * interface methods. There is one pair per interface supported by this class. That 1502cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * means one pair for each interface we support directly, indirectly via superclass, or 1512cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * indirectly via a superinterface. This will be null if neither we nor our superclass 1522cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * implement any interfaces. 1532cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 1542cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Why we need this: given "class Foo implements Face", declare "Face faceObj = new Foo()". 1552cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Invoke faceObj.blah(), where "blah" is part of the Face interface. We can't easily use a 1562cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * single vtable. 1572cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 1582cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * For every interface a concrete class implements, we create an array of the concrete vtable_ 1592cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * methods for the methods in the interface. 1602cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 1612cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom private transient Object[] ifTable; 1622cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 1632cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** Lazily computed name of this class; always prefer calling getName(). */ 1642cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom private transient String name; 1652cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 166d5178dc78b33c1d97af57b9ab047aa69717bc039Brian Carlstrom /** The superclass, or null if this is java.lang.Object, an interface or primitive type. */ 1672cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom private transient Class<? super T> superClass; 1682cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 1692cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** If class verify fails, we must return same error on subsequent tries. */ 1702cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom private transient Class<?> verifyErrorClass; 1712cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 1722cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** Virtual methods defined in this class; invoked through vtable. */ 17371dc4f7d4829335f7aba5414b43d16cd316ba22fBrian Carlstrom private transient ArtMethod[] virtualMethods; 1742cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 1752cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 1762cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Virtual method table (vtable), for use by "invoke-virtual". The vtable from the superclass 1772cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * is copied in, and virtual methods from our class either replace those from the super or are 1782cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * appended. For abstract classes, methods may be created in the vtable that aren't in 1792cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * virtual_ methods_ for miranda methods. 1802cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 18171dc4f7d4829335f7aba5414b43d16cd316ba22fBrian Carlstrom private transient ArtMethod[] vtable; 1822cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 1832cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** access flags; low 16 bits are defined by VM spec */ 1842cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom private transient int accessFlags; 1852cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 1862cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 187239a39fa24e3fc5b173a80de63a10f489539bb9eMathieu Chartier * Instance fields. These describe the layout of the contents of an Object. Note that only the 188239a39fa24e3fc5b173a80de63a10f489539bb9eMathieu Chartier * fields directly declared by this class are listed in iFields; fields declared by a 189239a39fa24e3fc5b173a80de63a10f489539bb9eMathieu Chartier * superclass are listed in the superclass's Class.iFields. 190239a39fa24e3fc5b173a80de63a10f489539bb9eMathieu Chartier * 191239a39fa24e3fc5b173a80de63a10f489539bb9eMathieu Chartier * All instance fields that refer to objects are guaranteed to be at the beginning of the field 192239a39fa24e3fc5b173a80de63a10f489539bb9eMathieu Chartier * list. {@link Class#numReferenceInstanceFields} specifies the number of reference fields. 193239a39fa24e3fc5b173a80de63a10f489539bb9eMathieu Chartier */ 194239a39fa24e3fc5b173a80de63a10f489539bb9eMathieu Chartier private transient long iFields; 195239a39fa24e3fc5b173a80de63a10f489539bb9eMathieu Chartier 196239a39fa24e3fc5b173a80de63a10f489539bb9eMathieu Chartier /** Static fields */ 197239a39fa24e3fc5b173a80de63a10f489539bb9eMathieu Chartier private transient long sFields; 198239a39fa24e3fc5b173a80de63a10f489539bb9eMathieu Chartier 199239a39fa24e3fc5b173a80de63a10f489539bb9eMathieu Chartier 200239a39fa24e3fc5b173a80de63a10f489539bb9eMathieu Chartier /** 2012cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Total size of the Class instance; used when allocating storage on GC heap. 2022cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * See also {@link Class#objectSize}. 2032cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 2042cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom private transient int classSize; 2052cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 2062cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 2072cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * tid used to check for recursive static initializer invocation. 2082cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 2092cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom private transient int clinitThreadId; 2102cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 2112cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 212a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers * Class def index from dex file. An index of 65535 indicates that there is no class definition, 213a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers * for example for an array type. 214a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers * TODO: really 16bits as type indices are 16bit. 2152cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 216a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers private transient int dexClassDefIndex; 217a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers 218a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers /** 219a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers * Class type index from dex file, lazily computed. An index of 65535 indicates that the type 220a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers * index isn't known. Volatile to avoid double-checked locking bugs. 221a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers * TODO: really 16bits as type indices are 16bit. 222a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers */ 223a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers private transient volatile int dexTypeIndex; 2242cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 225239a39fa24e3fc5b173a80de63a10f489539bb9eMathieu Chartier /** Number of instance fields. */ 226239a39fa24e3fc5b173a80de63a10f489539bb9eMathieu Chartier private transient int numInstanceFields; 227239a39fa24e3fc5b173a80de63a10f489539bb9eMathieu Chartier 2282cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** Number of instance fields that are object references. */ 2292cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom private transient int numReferenceInstanceFields; 2302cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 2312cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** Number of static fields that are object references. */ 2322cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom private transient int numReferenceStaticFields; 2332cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 234239a39fa24e3fc5b173a80de63a10f489539bb9eMathieu Chartier /** Number of static fields. */ 235239a39fa24e3fc5b173a80de63a10f489539bb9eMathieu Chartier private transient int numStaticFields; 236239a39fa24e3fc5b173a80de63a10f489539bb9eMathieu Chartier 2372cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 2382cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Total object size; used when allocating storage on GC heap. For interfaces and abstract 2392cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * classes this will be zero. See also {@link Class#classSize}. 2402cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 2412cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom private transient int objectSize; 2422cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 243c519ec27ba900d5422c5a0d40388fb6620981564Hiroshi Yamauchi /** 244c519ec27ba900d5422c5a0d40388fb6620981564Hiroshi Yamauchi * The lower 16 bits is the primitive type value, or 0 if not a primitive type; set for 245c519ec27ba900d5422c5a0d40388fb6620981564Hiroshi Yamauchi * generated primitive classes. 246c519ec27ba900d5422c5a0d40388fb6620981564Hiroshi Yamauchi */ 2472cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom private transient int primitiveType; 2482cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 2492cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** Bitmap of offsets of iFields. */ 2502cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom private transient int referenceInstanceOffsets; 2512cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 2522cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** State of class initialization */ 2532cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom private transient int status; 2542cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 2552cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom private Class() { 256d5178dc78b33c1d97af57b9ab047aa69717bc039Brian Carlstrom // Prevent this class from being instantiated, 257d5178dc78b33c1d97af57b9ab047aa69717bc039Brian Carlstrom // instances should be created by the runtime only. 2582cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 2592cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 2602cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 26171dc4f7d4829335f7aba5414b43d16cd316ba22fBrian Carlstrom * Returns a {@code Class} object which represents the class with 26271dc4f7d4829335f7aba5414b43d16cd316ba22fBrian Carlstrom * the given name. The name should be the name of a non-primitive 26371dc4f7d4829335f7aba5414b43d16cd316ba22fBrian Carlstrom * class, as described in the {@link Class class definition}. 26471dc4f7d4829335f7aba5414b43d16cd316ba22fBrian Carlstrom * Primitive types can not be found using this method; use {@code 26571dc4f7d4829335f7aba5414b43d16cd316ba22fBrian Carlstrom * int.class} or {@code Integer.TYPE} instead. 2662cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 2672cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * <p>If the class has not yet been loaded, it is loaded and initialized 2682cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * first. This is done through either the class loader of the calling class 2692cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * or one of its parent class loaders. It is possible that a static initializer is run as 2702cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * a result of this call. 2712cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 2722cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @throws ClassNotFoundException 2732cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * if the requested class cannot be found. 2742cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @throws LinkageError 2752cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * if an error occurs during linkage 2762cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @throws ExceptionInInitializerError 2772cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * if an exception occurs during static initialization of a 2782cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * class. 2792cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 2802cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public static Class<?> forName(String className) throws ClassNotFoundException { 2812cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return forName(className, true, VMStack.getCallingClassLoader()); 2822cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 2832cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 2842cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 28571dc4f7d4829335f7aba5414b43d16cd316ba22fBrian Carlstrom * Returns a {@code Class} object which represents the class with 28671dc4f7d4829335f7aba5414b43d16cd316ba22fBrian Carlstrom * the given name. The name should be the name of a non-primitive 28771dc4f7d4829335f7aba5414b43d16cd316ba22fBrian Carlstrom * class, as described in the {@link Class class definition}. 28871dc4f7d4829335f7aba5414b43d16cd316ba22fBrian Carlstrom * Primitive types can not be found using this method; use {@code 28971dc4f7d4829335f7aba5414b43d16cd316ba22fBrian Carlstrom * int.class} or {@code Integer.TYPE} instead. 2902cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 2912cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * <p>If the class has not yet been loaded, it is loaded first, using the given class loader. 2922cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * If the class has not yet been initialized and {@code shouldInitialize} is true, 2932cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * the class will be initialized. 2942cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 295d5178dc78b33c1d97af57b9ab047aa69717bc039Brian Carlstrom * <p>If the provided {@code classLoader} is null, the bootstrap 296d5178dc78b33c1d97af57b9ab047aa69717bc039Brian Carlstrom * class loader will be used to load the class. 297d5178dc78b33c1d97af57b9ab047aa69717bc039Brian Carlstrom * 2982cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @throws ClassNotFoundException 2992cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * if the requested class cannot be found. 3002cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @throws LinkageError 3012cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * if an error occurs during linkage 3022cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @throws ExceptionInInitializerError 3032cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * if an exception occurs during static initialization of a 3042cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * class. 3052cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 3062cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public static Class<?> forName(String className, boolean shouldInitialize, 3072cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom ClassLoader classLoader) throws ClassNotFoundException { 3082cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 3092cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (classLoader == null) { 3102cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom classLoader = ClassLoader.getSystemClassLoader(); 3112cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 3122cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom // Catch an Exception thrown by the underlying native code. It wraps 3132cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom // up everything inside a ClassNotFoundException, even if e.g. an 3142cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom // Error occurred during initialization. This as a workaround for 3152cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom // an ExceptionInInitializerError that's also wrapped. It is actually 3162cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom // expected to be thrown. Maybe the same goes for other errors. 3172cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom // Not wrapping up all the errors will break android though. 3182cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom Class<?> result; 3192cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom try { 3202cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom result = classForName(className, shouldInitialize, classLoader); 3212cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } catch (ClassNotFoundException e) { 3222cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom Throwable cause = e.getCause(); 3232cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (cause instanceof LinkageError) { 3242cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom throw (LinkageError) cause; 3252cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 3262cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom throw e; 3272cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 3282cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return result; 3292cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 3302cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 3312cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom static native Class<?> classForName(String className, boolean shouldInitialize, 3322cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom ClassLoader classLoader) throws ClassNotFoundException; 3332cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 3342cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 33571dc4f7d4829335f7aba5414b43d16cd316ba22fBrian Carlstrom * Returns an array containing {@code Class} objects for all 33671dc4f7d4829335f7aba5414b43d16cd316ba22fBrian Carlstrom * public classes, interfaces, enums and annotations that are 33771dc4f7d4829335f7aba5414b43d16cd316ba22fBrian Carlstrom * members of this class and its superclasses. This does not 33871dc4f7d4829335f7aba5414b43d16cd316ba22fBrian Carlstrom * include classes of implemented interfaces. If there are no 33971dc4f7d4829335f7aba5414b43d16cd316ba22fBrian Carlstrom * such class members or if this object represents a primitive 34071dc4f7d4829335f7aba5414b43d16cd316ba22fBrian Carlstrom * type then an array of length 0 is returned. 3412cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 3422cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public Class<?>[] getClasses() { 3432cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom List<Class<?>> result = new ArrayList<Class<?>>(); 3442cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom for (Class<?> c = this; c != null; c = c.superClass) { 3452cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom for (Class<?> member : c.getDeclaredClasses()) { 3462cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (Modifier.isPublic(member.getModifiers())) { 3472cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom result.add(member); 3482cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 3492cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 3502cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 3512cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return result.toArray(new Class[result.size()]); 3522cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 3532cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 3542cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom @Override public <A extends Annotation> A getAnnotation(Class<A> annotationType) { 3552cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return AnnotationAccess.getAnnotation(this, annotationType); 3562cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 3572cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 3582cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 3592cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns an array containing all the annotations of this class. If there are no annotations 3602cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * then an empty array is returned. 3612cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 3622cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @see #getDeclaredAnnotations() 3632cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 3642cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom @Override public Annotation[] getAnnotations() { 3652cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return AnnotationAccess.getAnnotations(this); 3662cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 3672cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 3682cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 3692cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns the canonical name of this class. If this class does not have a 3702cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * canonical name as defined in the Java Language Specification, then the 3712cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * method returns {@code null}. 3722cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 3732cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public String getCanonicalName() { 3742cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (isLocalClass() || isAnonymousClass()) 3752cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return null; 3762cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 3772cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (isArray()) { 3782cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /* 3792cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * The canonical name of an array type depends on the (existence of) 3802cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * the component type's canonical name. 3812cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 3822cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom String name = getComponentType().getCanonicalName(); 3832cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (name != null) { 3842cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return name + "[]"; 3852cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 3862cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } else if (isMemberClass()) { 3872cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /* 3882cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * The canonical name of an inner class depends on the (existence 3892cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * of) the declaring class' canonical name. 3902cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 3912cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom String name = getDeclaringClass().getCanonicalName(); 3922cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (name != null) { 3932cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return name + "." + getSimpleName(); 3942cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 3952cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } else { 3962cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /* 3972cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * The canonical name of a top-level class or primitive type is 3982cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * equal to the fully qualified name. 3992cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 4002cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return getName(); 4012cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 4022cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 4032cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /* 4042cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Other classes don't have a canonical name. 4052cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 4062cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return null; 4072cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 4082cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 4092cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 4102cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns the class loader which was used to load the class represented by 4112cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * this {@code Class}. Implementations are free to return {@code null} for 4122cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * classes that were loaded by the bootstrap class loader. The Android 4132cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * reference implementation, though, always returns a reference to an actual 4142cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * class loader. 4152cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 4162cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public ClassLoader getClassLoader() { 4172cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (this.isPrimitive()) { 4182cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return null; 4192cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 4202cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 4212cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom ClassLoader loader = getClassLoaderImpl(); 4222cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (loader == null) { 4232cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom loader = BootClassLoader.getInstance(); 4242cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 4252cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return loader; 4262cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 4272cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 4282cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 4292cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * This must be provided by the VM vendor, as it is used by other provided 4302cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * class implementations in this package. Outside of this class, it is used 4312cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * by SecurityManager.classLoaderDepth(), 4322cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * currentClassLoader() and currentLoadedClass(). Return the ClassLoader for 4332cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * this Class without doing any security checks. The bootstrap ClassLoader 4342cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * is returned, unlike getClassLoader() which returns null in place of the 4352cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * bootstrap ClassLoader. 4362cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 4372cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom ClassLoader getClassLoaderImpl() { 4382cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom ClassLoader loader = classLoader; 4392cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return loader == null ? BootClassLoader.getInstance() : loader; 4402cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 4412cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 4422cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 4432cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns a {@code Class} object which represents the component type if 4442cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * this class represents an array type. Returns {@code null} if this class 4452cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * does not represent an array type. The component type of an array type is 4462cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * the type of the elements of the array. 4472cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 4482cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public Class<?> getComponentType() { 4492cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return componentType; 4502cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 4512cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 4522cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 4532cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns the dex file from which this class was loaded. 4542cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 4552cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @hide 4562cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 457a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers public Dex getDex() { 458a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers if (dexCache == null) { 459a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers return null; 460a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers } 461a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers return dexCache.getDex(); 462a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers } 4632cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 4642cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 465a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers * Returns a string from the dex cache, computing the string from the dex file if necessary. 4662cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 4672cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @hide 4682cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 4692cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public String getDexCacheString(Dex dex, int dexStringIndex) { 4703f58d2cbf86775ac97bddc1a8a0a9658b498d282Vladimir Marko String s = dexCache.getResolvedString(dexStringIndex); 4712cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (s == null) { 472a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers s = dex.strings().get(dexStringIndex).intern(); 4733f58d2cbf86775ac97bddc1a8a0a9658b498d282Vladimir Marko dexCache.setResolvedString(dexStringIndex, s); 4742cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 4752cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return s; 4762cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 4772cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 4782cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 479a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers * Returns a resolved type from the dex cache, computing the type from the dex file if 480a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers * necessary. 4812cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 4822cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @hide 4832cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 4842cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public Class<?> getDexCacheType(Dex dex, int dexTypeIndex) { 4853f58d2cbf86775ac97bddc1a8a0a9658b498d282Vladimir Marko Class<?> resolvedType = dexCache.getResolvedType(dexTypeIndex); 4862cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (resolvedType == null) { 4872cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom int descriptorIndex = dex.typeIds().get(dexTypeIndex); 4882cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom String descriptor = getDexCacheString(dex, descriptorIndex); 4892cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom resolvedType = InternalNames.getClass(getClassLoader(), descriptor); 4903f58d2cbf86775ac97bddc1a8a0a9658b498d282Vladimir Marko dexCache.setResolvedType(dexTypeIndex, resolvedType); 4912cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 4922cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return resolvedType; 4932cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 4942cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 4952cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 4962cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns a {@code Constructor} object which represents the public 4972cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * constructor matching the given parameter types. 4982cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * {@code (Class[]) null} is equivalent to the empty array. 4992cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 5002cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @throws NoSuchMethodException 5012cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * if the constructor cannot be found. 5022cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @see #getDeclaredConstructor(Class[]) 5032cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 5042cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public Constructor<T> getConstructor(Class<?>... parameterTypes) throws NoSuchMethodException { 5052cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return getConstructor(parameterTypes, true); 5062cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 5072cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 5082cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 5092cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns a {@code Constructor} object which represents the constructor 5102cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * matching the specified parameter types that is declared by the class 5112cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * represented by this {@code Class}. 5122cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * {@code (Class[]) null} is equivalent to the empty array. 5132cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 5142cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @throws NoSuchMethodException 5152cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * if the requested constructor cannot be found. 5162cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @see #getConstructor(Class[]) 5172cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 5182cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public Constructor<T> getDeclaredConstructor(Class<?>... parameterTypes) 5192cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom throws NoSuchMethodException { 5202cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return getConstructor(parameterTypes, false); 5212cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 5222cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 5232cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 5242cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns a constructor with the given parameters. 5252cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 5262cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @param publicOnly true to only return public constructores. 5272cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @param parameterTypes argument types to match the constructor's. 5282cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 5292cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom private Constructor<T> getConstructor(Class<?>[] parameterTypes, boolean publicOnly) 5302cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom throws NoSuchMethodException { 5312cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (parameterTypes == null) { 5322cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom parameterTypes = EmptyArray.CLASS; 5332cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 5342cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom for (Class<?> c : parameterTypes) { 5352cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (c == null) { 5362cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom throw new NoSuchMethodException("parameter type is null"); 5372cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 5382cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 5392cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom Constructor<T> result = getDeclaredConstructorInternal(parameterTypes); 5402cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (result == null || publicOnly && !Modifier.isPublic(result.getAccessFlags())) { 5412cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom throw new NoSuchMethodException("<init> " + Arrays.toString(parameterTypes)); 5422cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 5432cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return result; 5442cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 5452cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 5462cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 5472cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns the constructor with the given parameters if it is defined by this class; null 5482cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * otherwise. This may return a non-public member. 5492cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 5502cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @param args the types of the parameters to the constructor. 5512cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 5522cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom private Constructor<T> getDeclaredConstructorInternal(Class<?>[] args) { 5532cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (directMethods != null) { 55471dc4f7d4829335f7aba5414b43d16cd316ba22fBrian Carlstrom for (ArtMethod m : directMethods) { 55571dc4f7d4829335f7aba5414b43d16cd316ba22fBrian Carlstrom int modifiers = m.getAccessFlags(); 55671dc4f7d4829335f7aba5414b43d16cd316ba22fBrian Carlstrom if (Modifier.isStatic(modifiers)) { 55771dc4f7d4829335f7aba5414b43d16cd316ba22fBrian Carlstrom // skip <clinit> which is a static constructor 55871dc4f7d4829335f7aba5414b43d16cd316ba22fBrian Carlstrom continue; 55971dc4f7d4829335f7aba5414b43d16cd316ba22fBrian Carlstrom } 56071dc4f7d4829335f7aba5414b43d16cd316ba22fBrian Carlstrom if (!Modifier.isConstructor(modifiers)) { 56171dc4f7d4829335f7aba5414b43d16cd316ba22fBrian Carlstrom continue; 56271dc4f7d4829335f7aba5414b43d16cd316ba22fBrian Carlstrom } 56371dc4f7d4829335f7aba5414b43d16cd316ba22fBrian Carlstrom if (!ArtMethod.equalConstructorParameters(m, args)) { 56471dc4f7d4829335f7aba5414b43d16cd316ba22fBrian Carlstrom continue; 5652cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 56671dc4f7d4829335f7aba5414b43d16cd316ba22fBrian Carlstrom return new Constructor<T>(m); 5672cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 5682cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 5692cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return null; 5702cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 5712cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 5722cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 5732cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns an array containing {@code Constructor} objects for all public 5742cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * constructors for this {@code Class}. If there 5752cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * are no public constructors or if this {@code Class} represents an array 5762cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * class, a primitive type or void then an empty array is returned. 5772cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 5782cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @see #getDeclaredConstructors() 5792cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 5802cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public Constructor<?>[] getConstructors() { 5812cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom ArrayList<Constructor<T>> constructors = new ArrayList(); 5822cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom getDeclaredConstructors(true, constructors); 5832cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return constructors.toArray(new Constructor[constructors.size()]); 5842cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 5852cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 5862cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 5872cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns an array containing {@code Constructor} objects for all 5882cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * constructors declared in the class represented by this {@code Class}. If 5892cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * there are no constructors or if this {@code Class} represents an array 5902cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * class, a primitive type or void then an empty array is returned. 5912cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 5922cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @see #getConstructors() 5932cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 5942cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public Constructor<?>[] getDeclaredConstructors() { 5952cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom ArrayList<Constructor<T>> constructors = new ArrayList(); 5962cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom getDeclaredConstructors(false, constructors); 5972cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return constructors.toArray(new Constructor[constructors.size()]); 5982cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 5992cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 6002cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom private void getDeclaredConstructors(boolean publicOnly, List<Constructor<T>> constructors) { 6012cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (directMethods != null) { 60271dc4f7d4829335f7aba5414b43d16cd316ba22fBrian Carlstrom for (ArtMethod m : directMethods) { 6032cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom int modifiers = m.getAccessFlags(); 6042cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (!publicOnly || Modifier.isPublic(modifiers)) { 60571dc4f7d4829335f7aba5414b43d16cd316ba22fBrian Carlstrom if (Modifier.isStatic(modifiers)) { 60671dc4f7d4829335f7aba5414b43d16cd316ba22fBrian Carlstrom // skip <clinit> which is a static constructor 60771dc4f7d4829335f7aba5414b43d16cd316ba22fBrian Carlstrom continue; 60871dc4f7d4829335f7aba5414b43d16cd316ba22fBrian Carlstrom } 60971dc4f7d4829335f7aba5414b43d16cd316ba22fBrian Carlstrom if (Modifier.isConstructor(modifiers)) { 61071dc4f7d4829335f7aba5414b43d16cd316ba22fBrian Carlstrom constructors.add(new Constructor<T>(m)); 6112cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 6122cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 6132cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 6142cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 6152cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 6162cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 6172cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 6182cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns a {@code Method} object which represents the method matching the 6192cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * specified name and parameter types that is declared by the class 6202cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * represented by this {@code Class}. 6212cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 6222cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @param name 6232cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * the requested method's name. 6242cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @param parameterTypes 6252cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * the parameter types of the requested method. 6262cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * {@code (Class[]) null} is equivalent to the empty array. 6272cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @return the method described by {@code name} and {@code parameterTypes}. 6282cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @throws NoSuchMethodException 6292cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * if the requested constructor cannot be found. 6302cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @throws NullPointerException 6312cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * if {@code name} is {@code null}. 6322cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @see #getMethod(String, Class[]) 6332cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 6342cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public Method getDeclaredMethod(String name, Class<?>... parameterTypes) 6352cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom throws NoSuchMethodException { 6362cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return getMethod(name, parameterTypes, false); 6372cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 6382cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 6392cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 6402cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns a {@code Method} object which represents the public method with 6412cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * the specified name and parameter types. 6422cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * {@code (Class[]) null} is equivalent to the empty array. 6432cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * This method first searches the 6442cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * class C represented by this {@code Class}, then the superclasses of C and 6452cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * finally the interfaces implemented by C and finally the superclasses of C 6462cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * for a method with matching name. 6472cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 6482cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @throws NoSuchMethodException 6492cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * if the method cannot be found. 6502cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @see #getDeclaredMethod(String, Class[]) 6512cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 6522cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public Method getMethod(String name, Class<?>... parameterTypes) throws NoSuchMethodException { 6532cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return getMethod(name, parameterTypes, true); 6542cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 6552cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 65678728ebce868f5949739e6e204e3e0fbf0356f8dElliott Hughes private Method getMethod(String name, Class<?>[] parameterTypes, boolean recursivePublicMethods) 6572cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom throws NoSuchMethodException { 6582cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (name == null) { 6592cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom throw new NullPointerException("name == null"); 6602cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 6612cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (parameterTypes == null) { 6622cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom parameterTypes = EmptyArray.CLASS; 6632cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 6642cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom for (Class<?> c : parameterTypes) { 6652cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (c == null) { 6662cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom throw new NoSuchMethodException("parameter type is null"); 6672cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 6682cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 6692cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom Method result = recursivePublicMethods ? getPublicMethodRecursive(name, parameterTypes) 6702cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom : getDeclaredMethodInternal(name, parameterTypes); 6712cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom // Fail if we didn't find the method or it was expected to be public. 6722cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (result == null || 6732cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom (recursivePublicMethods && !Modifier.isPublic(result.getAccessFlags()))) { 6742cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom throw new NoSuchMethodException(name + " " + Arrays.toString(parameterTypes)); 6752cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 6762cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return result; 6772cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 6782cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 6792cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom private Method getPublicMethodRecursive(String name, Class<?>[] parameterTypes) { 6802cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom // search superclasses 6812cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom for (Class<?> c = this; c != null; c = c.getSuperclass()) { 6822cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom Method result = c.getDeclaredMethodInternal(name, parameterTypes); 6832cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (result != null && Modifier.isPublic(result.getAccessFlags())) { 6842cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return result; 6852cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 6862cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 6872cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom // search iftable which has a flattened and uniqued list of interfaces 6882cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom Object[] iftable = ifTable; 6892cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (iftable != null) { 6902cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom for (int i = 0; i < iftable.length; i += 2) { 6912cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom Class<?> ifc = (Class<?>) iftable[i]; 6922cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom Method result = ifc.getPublicMethodRecursive(name, parameterTypes); 6932cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (result != null && Modifier.isPublic(result.getAccessFlags())) { 6942cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return result; 6952cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 6962cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 6972cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 6982cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return null; 6992cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 7002cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 7012cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 7022cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns the method if it is defined by this class; null otherwise. This may return a 7032cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * non-public member. 7042cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 7052cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @param name the method name 7062cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @param args the method's parameter types 7072cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 7082cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom private Method getDeclaredMethodInternal(String name, Class<?>[] args) { 7092cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom // Covariant return types permit the class to define multiple 7102cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom // methods with the same name and parameter types. Prefer to 7112cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom // return a non-synthetic method in such situations. We may 7122cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom // still return a synthetic method to handle situations like 7132cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom // escalated visibility. We never return miranda methods that 714d5178dc78b33c1d97af57b9ab047aa69717bc039Brian Carlstrom // were synthesized by the runtime. 7152cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom int skipModifiers = Modifier.MIRANDA | Modifier.SYNTHETIC; 71671dc4f7d4829335f7aba5414b43d16cd316ba22fBrian Carlstrom ArtMethod artMethodResult = null; 7176a51140fd83dc16867ca38a4ca2e47cbbf090dfdIan Rogers if (virtualMethods != null) { 71871dc4f7d4829335f7aba5414b43d16cd316ba22fBrian Carlstrom for (ArtMethod m : virtualMethods) { 7193f58d2cbf86775ac97bddc1a8a0a9658b498d282Vladimir Marko ArtMethod nonProxyMethod = Class.findOverriddenMethodIfProxy(m); 7203f58d2cbf86775ac97bddc1a8a0a9658b498d282Vladimir Marko String methodName = ArtMethod.getMethodName(nonProxyMethod); 72171dc4f7d4829335f7aba5414b43d16cd316ba22fBrian Carlstrom if (!name.equals(methodName)) { 72271dc4f7d4829335f7aba5414b43d16cd316ba22fBrian Carlstrom continue; 72371dc4f7d4829335f7aba5414b43d16cd316ba22fBrian Carlstrom } 7243f58d2cbf86775ac97bddc1a8a0a9658b498d282Vladimir Marko if (!ArtMethod.equalMethodParameters(nonProxyMethod, args)) { 72571dc4f7d4829335f7aba5414b43d16cd316ba22fBrian Carlstrom continue; 72671dc4f7d4829335f7aba5414b43d16cd316ba22fBrian Carlstrom } 72771dc4f7d4829335f7aba5414b43d16cd316ba22fBrian Carlstrom int modifiers = m.getAccessFlags(); 72871dc4f7d4829335f7aba5414b43d16cd316ba22fBrian Carlstrom if ((modifiers & skipModifiers) == 0) { 72971dc4f7d4829335f7aba5414b43d16cd316ba22fBrian Carlstrom return new Method(m); 73071dc4f7d4829335f7aba5414b43d16cd316ba22fBrian Carlstrom } 73171dc4f7d4829335f7aba5414b43d16cd316ba22fBrian Carlstrom if ((modifiers & Modifier.MIRANDA) == 0) { 73271dc4f7d4829335f7aba5414b43d16cd316ba22fBrian Carlstrom // Remember as potential result if it's not a miranda method. 73371dc4f7d4829335f7aba5414b43d16cd316ba22fBrian Carlstrom artMethodResult = m; 7342cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 7352cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 7362cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 73771dc4f7d4829335f7aba5414b43d16cd316ba22fBrian Carlstrom if (artMethodResult == null) { 7386a51140fd83dc16867ca38a4ca2e47cbbf090dfdIan Rogers if (directMethods != null) { 73971dc4f7d4829335f7aba5414b43d16cd316ba22fBrian Carlstrom for (ArtMethod m : directMethods) { 74071dc4f7d4829335f7aba5414b43d16cd316ba22fBrian Carlstrom int modifiers = m.getAccessFlags(); 74171dc4f7d4829335f7aba5414b43d16cd316ba22fBrian Carlstrom if (Modifier.isConstructor(modifiers)) { 74271dc4f7d4829335f7aba5414b43d16cd316ba22fBrian Carlstrom continue; 74371dc4f7d4829335f7aba5414b43d16cd316ba22fBrian Carlstrom } 7443f58d2cbf86775ac97bddc1a8a0a9658b498d282Vladimir Marko ArtMethod nonProxyMethod = Class.findOverriddenMethodIfProxy(m); 7453f58d2cbf86775ac97bddc1a8a0a9658b498d282Vladimir Marko String methodName = ArtMethod.getMethodName(nonProxyMethod); 74671dc4f7d4829335f7aba5414b43d16cd316ba22fBrian Carlstrom if (!name.equals(methodName)) { 74771dc4f7d4829335f7aba5414b43d16cd316ba22fBrian Carlstrom continue; 74871dc4f7d4829335f7aba5414b43d16cd316ba22fBrian Carlstrom } 7493f58d2cbf86775ac97bddc1a8a0a9658b498d282Vladimir Marko if (!ArtMethod.equalMethodParameters(nonProxyMethod, args)) { 75071dc4f7d4829335f7aba5414b43d16cd316ba22fBrian Carlstrom continue; 7512cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 75271dc4f7d4829335f7aba5414b43d16cd316ba22fBrian Carlstrom if ((modifiers & skipModifiers) == 0) { 75371dc4f7d4829335f7aba5414b43d16cd316ba22fBrian Carlstrom return new Method(m); 75471dc4f7d4829335f7aba5414b43d16cd316ba22fBrian Carlstrom } 75571dc4f7d4829335f7aba5414b43d16cd316ba22fBrian Carlstrom // Direct methods cannot be miranda methods, 75671dc4f7d4829335f7aba5414b43d16cd316ba22fBrian Carlstrom // so this potential result must be synthetic. 75771dc4f7d4829335f7aba5414b43d16cd316ba22fBrian Carlstrom artMethodResult = m; 7582cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 7592cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 7602cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 76171dc4f7d4829335f7aba5414b43d16cd316ba22fBrian Carlstrom if (artMethodResult == null) { 76271dc4f7d4829335f7aba5414b43d16cd316ba22fBrian Carlstrom return null; 76371dc4f7d4829335f7aba5414b43d16cd316ba22fBrian Carlstrom } 76471dc4f7d4829335f7aba5414b43d16cd316ba22fBrian Carlstrom return new Method(artMethodResult); 7652cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 7662cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 7672cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 7683f58d2cbf86775ac97bddc1a8a0a9658b498d282Vladimir Marko * Returns the overridden method if the {@code method} is a proxy method, 7693f58d2cbf86775ac97bddc1a8a0a9658b498d282Vladimir Marko * otherwise returns the {@code method}. 7703f58d2cbf86775ac97bddc1a8a0a9658b498d282Vladimir Marko * 7713f58d2cbf86775ac97bddc1a8a0a9658b498d282Vladimir Marko * @hide 7723f58d2cbf86775ac97bddc1a8a0a9658b498d282Vladimir Marko */ 7733f58d2cbf86775ac97bddc1a8a0a9658b498d282Vladimir Marko public static native ArtMethod findOverriddenMethodIfProxy(ArtMethod method); 7743f58d2cbf86775ac97bddc1a8a0a9658b498d282Vladimir Marko 7753f58d2cbf86775ac97bddc1a8a0a9658b498d282Vladimir Marko /** 7762cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns an array containing {@code Method} objects for all methods 7772cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * declared in the class represented by this {@code Class}. If there are no 7782cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * methods or if this {@code Class} represents an array class, a primitive 7792cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * type or void then an empty array is returned. 7802cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 7812cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @see #getMethods() 7822cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 7832cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public Method[] getDeclaredMethods() { 7842cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom int initial_size = virtualMethods == null ? 0 : virtualMethods.length; 7852cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom initial_size += directMethods == null ? 0 : directMethods.length; 7862cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom ArrayList<Method> methods = new ArrayList<Method>(initial_size); 7874bde7d71a45ca7d79b53d0770dc8cd6cd5469a76Alan Viverette getDeclaredMethodsUnchecked(false, methods); 7882cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom Method[] result = methods.toArray(new Method[methods.size()]); 7892cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom for (Method m : result) { 7902cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom // Throw NoClassDefFoundError if types cannot be resolved. 7912cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom m.getReturnType(); 7922cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom m.getParameterTypes(); 7932cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 7942cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return result; 7952cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 7962cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 7972cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 7982cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 7994bde7d71a45ca7d79b53d0770dc8cd6cd5469a76Alan Viverette * Populates a list of methods without performing any security or type 8004bde7d71a45ca7d79b53d0770dc8cd6cd5469a76Alan Viverette * resolution checks first. If no methods exist, the list is not modified. 8014bde7d71a45ca7d79b53d0770dc8cd6cd5469a76Alan Viverette * 8024bde7d71a45ca7d79b53d0770dc8cd6cd5469a76Alan Viverette * @param publicOnly Whether to return only public methods. 8034bde7d71a45ca7d79b53d0770dc8cd6cd5469a76Alan Viverette * @param methods A list to populate with declared methods. 8044bde7d71a45ca7d79b53d0770dc8cd6cd5469a76Alan Viverette * @hide 8052cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 8064bde7d71a45ca7d79b53d0770dc8cd6cd5469a76Alan Viverette public void getDeclaredMethodsUnchecked(boolean publicOnly, List<Method> methods) { 8072cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (virtualMethods != null) { 80871dc4f7d4829335f7aba5414b43d16cd316ba22fBrian Carlstrom for (ArtMethod m : virtualMethods) { 8092cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom int modifiers = m.getAccessFlags(); 8102cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (!publicOnly || Modifier.isPublic(modifiers)) { 8112cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom // Add non-miranda virtual methods. 8122cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if ((modifiers & Modifier.MIRANDA) == 0) { 81371dc4f7d4829335f7aba5414b43d16cd316ba22fBrian Carlstrom methods.add(new Method(m)); 8142cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 8152cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 8162cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 8172cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 8182cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (directMethods != null) { 81971dc4f7d4829335f7aba5414b43d16cd316ba22fBrian Carlstrom for (ArtMethod m : directMethods) { 8202cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom int modifiers = m.getAccessFlags(); 8212cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (!publicOnly || Modifier.isPublic(modifiers)) { 8222cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom // Add non-constructor direct/static methods. 82371dc4f7d4829335f7aba5414b43d16cd316ba22fBrian Carlstrom if (!Modifier.isConstructor(modifiers)) { 82471dc4f7d4829335f7aba5414b43d16cd316ba22fBrian Carlstrom methods.add(new Method(m)); 8252cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 8262cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 8272cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 8282cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 8292cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 8302cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 8312cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 8322cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns an array containing {@code Method} objects for all public methods 8332cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * for the class C represented by this {@code Class}. Methods may be 8342cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * declared in C, the interfaces it implements or in the superclasses of C. 8352cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * The elements in the returned array are in no particular order. 8362cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 8372cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * <p>If there are no public methods or if this {@code Class} represents a 8382cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * primitive type or {@code void} then an empty array is returned. 8392cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 8402cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @see #getDeclaredMethods() 8412cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 8422cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public Method[] getMethods() { 8432cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom List<Method> methods = new ArrayList<Method>(); 8442cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom getPublicMethodsInternal(methods); 8452cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /* 8462cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Remove duplicate methods defined by superclasses and 8472cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * interfaces, preferring to keep methods declared by derived 8482cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * types. 8492cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 8502cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom CollectionUtils.removeDuplicates(methods, Method.ORDER_BY_SIGNATURE); 8512cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return methods.toArray(new Method[methods.size()]); 8522cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 8532cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 8542cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 8552cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Populates {@code result} with public methods defined by this class, its 8562cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * superclasses, and all implemented interfaces, including overridden methods. 8572cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 8582cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom private void getPublicMethodsInternal(List<Method> result) { 8594bde7d71a45ca7d79b53d0770dc8cd6cd5469a76Alan Viverette getDeclaredMethodsUnchecked(true, result); 8602cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (!isInterface()) { 8612cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom // Search superclasses, for interfaces don't search java.lang.Object. 8622cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom for (Class<?> c = superClass; c != null; c = c.superClass) { 8634bde7d71a45ca7d79b53d0770dc8cd6cd5469a76Alan Viverette c.getDeclaredMethodsUnchecked(true, result); 8642cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 8652cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 8662cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom // Search iftable which has a flattened and uniqued list of interfaces. 8672cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom Object[] iftable = ifTable; 8682cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (iftable != null) { 8692cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom for (int i = 0; i < iftable.length; i += 2) { 8702cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom Class<?> ifc = (Class<?>) iftable[i]; 8714bde7d71a45ca7d79b53d0770dc8cd6cd5469a76Alan Viverette ifc.getDeclaredMethodsUnchecked(true, result); 8722cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 8732cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 8742cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 8752cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 8762cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 8772cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns the annotations that are directly defined on the class 8782cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * represented by this {@code Class}. Annotations that are inherited are not 8792cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * included in the result. If there are no annotations at all, an empty 8802cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * array is returned. 8812cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 8822cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @see #getAnnotations() 8832cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 8842cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom @Override public Annotation[] getDeclaredAnnotations() { 8852cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom List<Annotation> result = AnnotationAccess.getDeclaredAnnotations(this); 8862cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return result.toArray(new Annotation[result.size()]); 8872cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 8882cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 8892cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 8902cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns an array containing {@code Class} objects for all classes, 8912cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * interfaces, enums and annotations that are members of this class. 8922cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 8932cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public Class<?>[] getDeclaredClasses() { 8942cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return AnnotationAccess.getMemberClasses(this); 8952cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 8962cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 8972cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 8982cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns a {@code Field} object for the field with the given name 8992cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * which is declared in the class represented by this {@code Class}. 9002cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 9012cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @throws NoSuchFieldException if the requested field can not be found. 9022cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @see #getField(String) 9032cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 904eb183cdeab97f7fb25ae804319c1f5a46353dc4fMathieu Chartier public native Field getDeclaredField(String name) throws NoSuchFieldException; 9052cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 9062cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 9072cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns an array containing {@code Field} objects for all fields declared 9082cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * in the class represented by this {@code Class}. If there are no fields or 9092cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * if this {@code Class} represents an array class, a primitive type or void 9102cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * then an empty array is returned. 9112cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 9122cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @see #getFields() 9132cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 914eb183cdeab97f7fb25ae804319c1f5a46353dc4fMathieu Chartier public native Field[] getDeclaredFields(); 9152cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 9164bde7d71a45ca7d79b53d0770dc8cd6cd5469a76Alan Viverette /** 9174bde7d71a45ca7d79b53d0770dc8cd6cd5469a76Alan Viverette * Populates a list of fields without performing any security or type 9184bde7d71a45ca7d79b53d0770dc8cd6cd5469a76Alan Viverette * resolution checks first. If no fields exist, the list is not modified. 9194bde7d71a45ca7d79b53d0770dc8cd6cd5469a76Alan Viverette * 9204bde7d71a45ca7d79b53d0770dc8cd6cd5469a76Alan Viverette * @param publicOnly Whether to return only public fields. 9214bde7d71a45ca7d79b53d0770dc8cd6cd5469a76Alan Viverette * @param fields A list to populate with declared fields. 9224bde7d71a45ca7d79b53d0770dc8cd6cd5469a76Alan Viverette * @hide 9234bde7d71a45ca7d79b53d0770dc8cd6cd5469a76Alan Viverette */ 924eb183cdeab97f7fb25ae804319c1f5a46353dc4fMathieu Chartier public native Field[] getDeclaredFieldsUnchecked(boolean publicOnly); 9252cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 9262cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 9272cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns the field if it is defined by this class; null otherwise. This 9282cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * may return a non-public member. 9292cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 930eb183cdeab97f7fb25ae804319c1f5a46353dc4fMathieu Chartier private native Field getDeclaredFieldInternal(String name); 9315346a96c353933579db184a8433fc0cc1e076950Narayan Kamath 9325346a96c353933579db184a8433fc0cc1e076950Narayan Kamath /** 933eb183cdeab97f7fb25ae804319c1f5a46353dc4fMathieu Chartier * Returns the subset of getDeclaredFields which are public. 9345346a96c353933579db184a8433fc0cc1e076950Narayan Kamath */ 935eb183cdeab97f7fb25ae804319c1f5a46353dc4fMathieu Chartier private native Field[] getPublicDeclaredFields(); 9362cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 9372cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 9382cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns the class that this class is a member of, or {@code null} if this 9392cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * class is a top-level class, a primitive, an array, or defined within a 9402cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * method or constructor. 9412cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 9422cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public Class<?> getDeclaringClass() { 9434583b2cee94e9582a6c7a1d715f4896073d03badBrian Carlstrom if (AnnotationAccess.isAnonymousClass(this)) { 9444583b2cee94e9582a6c7a1d715f4896073d03badBrian Carlstrom return null; 9454583b2cee94e9582a6c7a1d715f4896073d03badBrian Carlstrom } 94696caa8ec10a5d64d804a9ed3897c9a34c8626239Brian Carlstrom return AnnotationAccess.getEnclosingClass(this); 9472cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 9482cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 9492cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 9502cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns the class enclosing this class. For most classes this is the same 9512cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * as the {@link #getDeclaringClass() declaring class}. For classes defined 9522cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * within a method or constructor (typically anonymous inner classes), this 9532cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * is the declaring class of that member. 9542cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 9552cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public Class<?> getEnclosingClass() { 9562cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom Class<?> declaringClass = getDeclaringClass(); 9572cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (declaringClass != null) { 9582cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return declaringClass; 9592cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 9602cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom AccessibleObject member = AnnotationAccess.getEnclosingMethodOrConstructor(this); 96196caa8ec10a5d64d804a9ed3897c9a34c8626239Brian Carlstrom if (member != null) { 96296caa8ec10a5d64d804a9ed3897c9a34c8626239Brian Carlstrom return ((Member) member).getDeclaringClass(); 96396caa8ec10a5d64d804a9ed3897c9a34c8626239Brian Carlstrom } 96496caa8ec10a5d64d804a9ed3897c9a34c8626239Brian Carlstrom return AnnotationAccess.getEnclosingClass(this); 9652cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 9662cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 9672cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 9682cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns the enclosing {@code Constructor} of this {@code Class}, if it is an 9692cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * anonymous or local/automatic class; otherwise {@code null}. 9702cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 9712cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public Constructor<?> getEnclosingConstructor() { 9722cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (classNameImpliesTopLevel()) { 9732cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return null; 9742cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 9752cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom AccessibleObject result = AnnotationAccess.getEnclosingMethodOrConstructor(this); 9762cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return result instanceof Constructor ? (Constructor<?>) result : null; 9772cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 9782cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 9792cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 9802cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns the enclosing {@code Method} of this {@code Class}, if it is an 9812cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * anonymous or local/automatic class; otherwise {@code null}. 9822cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 9832cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public Method getEnclosingMethod() { 9842cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (classNameImpliesTopLevel()) { 9852cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return null; 9862cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 9872cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom AccessibleObject result = AnnotationAccess.getEnclosingMethodOrConstructor(this); 9882cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return result instanceof Method ? (Method) result : null; 9892cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 9902cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 9912cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 9922cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns true if this class is definitely a top level class, or false if 9932cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * a more expensive check like {@link #getEnclosingClass()} is necessary. 9942cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 9952cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * <p>This is a hack that exploits an implementation detail of all Java 9962cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * language compilers: generated names always contain "$". As it is possible 9972cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * for a top level class to be named with a "$", a false result <strong>does 9982cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * not</strong> indicate that this isn't a top-level class. 9992cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 10002cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom private boolean classNameImpliesTopLevel() { 10012cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return !getName().contains("$"); 10022cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 10032cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 10042cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 10052cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns the {@code enum} constants associated with this {@code Class}. 10062cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns {@code null} if this {@code Class} does not represent an {@code 10072cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * enum} type. 10082cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 10092cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom @SuppressWarnings("unchecked") // we only cast after confirming that this class is an enum 10102cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public T[] getEnumConstants() { 10112cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (!isEnum()) { 10122cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return null; 10132cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 10142cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return (T[]) Enum.getSharedConstants((Class) this).clone(); 10152cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 10162cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 10172cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 10182cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns a {@code Field} object which represents the public field with the 10192cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * given name. This method first searches the class C represented by 10202cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * this {@code Class}, then the interfaces implemented by C and finally the 10212cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * superclasses of C. 10222cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 10232cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @throws NoSuchFieldException 10242cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * if the field cannot be found. 10252cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @see #getDeclaredField(String) 10262cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 10272cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public Field getField(String name) throws NoSuchFieldException { 10282cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (name == null) { 10292cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom throw new NullPointerException("name == null"); 10302cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 10312cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom Field result = getPublicFieldRecursive(name); 10322cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (result == null) { 10332cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom throw new NoSuchFieldException(name); 10342cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 10352cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return result; 10362cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 10372cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 10382cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom private Field getPublicFieldRecursive(String name) { 10392cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom // search superclasses 10402cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom for (Class<?> c = this; c != null; c = c.superClass) { 10412cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom Field result = c.getDeclaredFieldInternal(name); 10422cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (result != null && (result.getModifiers() & Modifier.PUBLIC) != 0) { 10432cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return result; 10442cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 10452cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 10462cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 10472cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom // search iftable which has a flattened and uniqued list of interfaces 10482cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (ifTable != null) { 10492cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom for (int i = 0; i < ifTable.length; i += 2) { 1050eb183cdeab97f7fb25ae804319c1f5a46353dc4fMathieu Chartier Field result = ((Class<?>) ifTable[i]).getPublicFieldRecursive(name); 10512cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (result != null && (result.getModifiers() & Modifier.PUBLIC) != 0) { 10522cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return result; 10532cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 10542cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 10552cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 10562cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 10572cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return null; 10582cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 10592cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 10602cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 10612cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns an array containing {@code Field} objects for all public fields 10622cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * for the class C represented by this {@code Class}. Fields may be declared 10632cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * in C, the interfaces it implements or in the superclasses of C. The 10642cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * elements in the returned array are in no particular order. 10652cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 10662cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * <p>If there are no public fields or if this class represents an array class, 10672cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * a primitive type or {@code void} then an empty array is returned. 10682cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 10692cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @see #getDeclaredFields() 10702cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 10712cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public Field[] getFields() { 10722cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom List<Field> fields = new ArrayList<Field>(); 10732cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom getPublicFieldsRecursive(fields); 1074eb183cdeab97f7fb25ae804319c1f5a46353dc4fMathieu Chartier return fields.toArray(new Field[fields.size()]); 10752cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 10762cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 10772cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 10782cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Populates {@code result} with public fields defined by this class, its 10792cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * superclasses, and all implemented interfaces. 10802cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 10812cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom private void getPublicFieldsRecursive(List<Field> result) { 10822cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom // search superclasses 10832cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom for (Class<?> c = this; c != null; c = c.superClass) { 1084eb183cdeab97f7fb25ae804319c1f5a46353dc4fMathieu Chartier Collections.addAll(result, c.getPublicDeclaredFields()); 10852cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 10862cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 10872cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom // search iftable which has a flattened and uniqued list of interfaces 10882cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom Object[] iftable = ifTable; 10892cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (iftable != null) { 10902cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom for (int i = 0; i < iftable.length; i += 2) { 1091eb183cdeab97f7fb25ae804319c1f5a46353dc4fMathieu Chartier Collections.addAll(result, ((Class<?>) iftable[i]).getPublicDeclaredFields()); 10922cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 10932cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 10942cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 10952cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 10962cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 10972cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns the {@link Type}s of the interfaces that this {@code Class} directly 10982cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * implements. If the {@code Class} represents a primitive type or {@code 10992cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * void} then an empty array is returned. 11002cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 11012cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public Type[] getGenericInterfaces() { 1102a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers Type[] result; 1103a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers synchronized (Caches.genericInterfaces) { 1104a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers result = Caches.genericInterfaces.get(this); 1105a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers if (result == null) { 1106a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers String annotationSignature = AnnotationAccess.getSignature(this); 1107a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers if (annotationSignature == null) { 1108a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers result = getInterfaces(); 1109a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers } else { 1110a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers GenericSignatureParser parser = new GenericSignatureParser(getClassLoader()); 1111a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers parser.parseForClass(this, annotationSignature); 1112a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers result = Types.getTypeArray(parser.interfaceTypes, false); 1113a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers } 1114a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers Caches.genericInterfaces.put(this, result); 1115a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers } 1116d4ec55c4e1acc3c3df937facbd367aff6618536cIan Rogers } 1117a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers return (result.length == 0) ? result : result.clone(); 11182cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 11192cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 11202cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 11212cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns the {@code Type} that represents the superclass of this {@code 11222cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * class}. 11232cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 11242cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public Type getGenericSuperclass() { 1125d4ec55c4e1acc3c3df937facbd367aff6618536cIan Rogers Type genericSuperclass = getSuperclass(); 11263b8c8cba4defe9049aca66d505e509395e5485f5Narayan Kamath // This method is specified to return null for all cases where getSuperclass 11273b8c8cba4defe9049aca66d505e509395e5485f5Narayan Kamath // returns null, i.e, for primitives, interfaces, void and java.lang.Object. 11283b8c8cba4defe9049aca66d505e509395e5485f5Narayan Kamath if (genericSuperclass == null) { 11293b8c8cba4defe9049aca66d505e509395e5485f5Narayan Kamath return null; 11303b8c8cba4defe9049aca66d505e509395e5485f5Narayan Kamath } 11313b8c8cba4defe9049aca66d505e509395e5485f5Narayan Kamath 1132d4ec55c4e1acc3c3df937facbd367aff6618536cIan Rogers String annotationSignature = AnnotationAccess.getSignature(this); 1133d4ec55c4e1acc3c3df937facbd367aff6618536cIan Rogers if (annotationSignature != null) { 1134d4ec55c4e1acc3c3df937facbd367aff6618536cIan Rogers GenericSignatureParser parser = new GenericSignatureParser(getClassLoader()); 1135d4ec55c4e1acc3c3df937facbd367aff6618536cIan Rogers parser.parseForClass(this, annotationSignature); 1136d4ec55c4e1acc3c3df937facbd367aff6618536cIan Rogers genericSuperclass = parser.superclassType; 1137d4ec55c4e1acc3c3df937facbd367aff6618536cIan Rogers } 1138d4ec55c4e1acc3c3df937facbd367aff6618536cIan Rogers return Types.getType(genericSuperclass); 11392cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 11402cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 11412cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 11422cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns an array of {@code Class} objects that match the interfaces 11432cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * in the {@code implements} declaration of the class represented 11442cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * by this {@code Class}. The order of the elements in the array is 11452cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * identical to the order in the original class declaration. If the class 11462cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * does not implement any interfaces, an empty array is returned. 11472cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 11482cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * <p>This method only returns directly-implemented interfaces, and does not 11492cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * include interfaces implemented by superclasses or superinterfaces of any 11502cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * implemented interfaces. 11512cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 11522cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public Class<?>[] getInterfaces() { 11532cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (isArray()) { 11542cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return new Class<?>[] { Cloneable.class, Serializable.class }; 11552cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } else if (isProxy()) { 11562cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return getProxyInterfaces(); 11572cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 1158a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers Dex dex = getDex(); 1159a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers if (dex == null) { 1160a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers return EmptyArray.CLASS; 1161a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers } 1162a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers short[] interfaces = dex.interfaceTypeIndicesFromClassDefIndex(dexClassDefIndex); 1163a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers Class<?>[] result = new Class<?>[interfaces.length]; 1164a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers for (int i = 0; i < interfaces.length; i++) { 1165a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers result[i] = getDexCacheType(dex, interfaces[i]); 1166a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers } 1167a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers return result; 11682cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 11692cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 11702cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom // Returns the interfaces that this proxy class directly implements. 11712cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom private native Class<?>[] getProxyInterfaces(); 11722cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 11732cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 11742cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns an integer that represents the modifiers of the class represented 11752cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * by this {@code Class}. The returned value is a combination of bits 11762cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * defined by constants in the {@link Modifier} class. 11772cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 11782cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public int getModifiers() { 117978728ebce868f5949739e6e204e3e0fbf0356f8dElliott Hughes // Array classes inherit modifiers from their component types, but in the case of arrays 118078728ebce868f5949739e6e204e3e0fbf0356f8dElliott Hughes // of an inner class, the class file may contain "fake" access flags because it's not valid 118178728ebce868f5949739e6e204e3e0fbf0356f8dElliott Hughes // for a top-level class to private, say. The real access flags are stored in the InnerClass 118278728ebce868f5949739e6e204e3e0fbf0356f8dElliott Hughes // attribute, so we need to make sure we drill down to the inner class: the accessFlags 118378728ebce868f5949739e6e204e3e0fbf0356f8dElliott Hughes // field is not the value we want to return, and the synthesized array class does not itself 118478728ebce868f5949739e6e204e3e0fbf0356f8dElliott Hughes // have an InnerClass attribute. https://code.google.com/p/android/issues/detail?id=56267 118578728ebce868f5949739e6e204e3e0fbf0356f8dElliott Hughes if (isArray()) { 118678728ebce868f5949739e6e204e3e0fbf0356f8dElliott Hughes int componentModifiers = getComponentType().getModifiers(); 118778728ebce868f5949739e6e204e3e0fbf0356f8dElliott Hughes if ((componentModifiers & Modifier.INTERFACE) != 0) { 118878728ebce868f5949739e6e204e3e0fbf0356f8dElliott Hughes componentModifiers &= ~(Modifier.INTERFACE | Modifier.STATIC); 118978728ebce868f5949739e6e204e3e0fbf0356f8dElliott Hughes } 119078728ebce868f5949739e6e204e3e0fbf0356f8dElliott Hughes return Modifier.ABSTRACT | Modifier.FINAL | componentModifiers; 119178728ebce868f5949739e6e204e3e0fbf0356f8dElliott Hughes } 11922cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom int JAVA_FLAGS_MASK = 0xffff; 11932cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom int modifiers = AnnotationAccess.getInnerClassFlags(this, accessFlags & JAVA_FLAGS_MASK); 11942cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return modifiers & JAVA_FLAGS_MASK; 11952cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 11962cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 11972cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 11982cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns the name of the class represented by this {@code Class}. For a 11992cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * description of the format which is used, see the class definition of 12002cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * {@link Class}. 12012cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 12022cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public String getName() { 12032cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom String result = name; 12042cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return (result == null) ? (name = getNameNative()) : result; 12052cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 12062cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 12072cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom private native String getNameNative(); 12082cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 12092cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 12102cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns the simple name of the class represented by this {@code Class} as 12112cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * defined in the source code. If there is no name (that is, the class is 12122cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * anonymous) then an empty string is returned. If the receiver is an array 12132cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * then the name of the underlying type with square braces appended (for 12142cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * example {@code "Integer[]"}) is returned. 12152cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 12162cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @return the simple name of the class represented by this {@code Class}. 12172cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 12182cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public String getSimpleName() { 12192cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (isArray()) { 12202cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return getComponentType().getSimpleName() + "[]"; 12212cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 12222cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 12232cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (isAnonymousClass()) { 12242cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return ""; 12252cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 12262cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 12272cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (isMemberClass() || isLocalClass()) { 12282cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return getInnerClassName(); 12292cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 12302cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 12312cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom String name = getName(); 12322cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom int dot = name.lastIndexOf('.'); 12332cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (dot != -1) { 12342cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return name.substring(dot + 1); 12352cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 12362cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 12372cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return name; 12382cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 12392cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 12402cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 12412cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns the simple name of a member or local class, or null otherwise. 12422cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 12432cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom private String getInnerClassName() { 12442cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return AnnotationAccess.getInnerClassName(this); 12452cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 12462cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 12472cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 12482cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns null. 12492cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 12502cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public ProtectionDomain getProtectionDomain() { 12512cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return null; 12522cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 12532cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 12542cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 12552cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns the URL of the given resource, or null if the resource is not found. 12562cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * The mapping between the resource name and the URL is managed by the class' class loader. 12572cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 12582cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @see ClassLoader 12592cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 12602cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public URL getResource(String resourceName) { 12612cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom // Get absolute resource name, but without the leading slash 12622cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (resourceName.startsWith("/")) { 12632cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom resourceName = resourceName.substring(1); 12642cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } else { 12652cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom String pkg = getName(); 12662cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom int dot = pkg.lastIndexOf('.'); 12672cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (dot != -1) { 12682cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom pkg = pkg.substring(0, dot).replace('.', '/'); 12692cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } else { 12702cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom pkg = ""; 12712cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 12722cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 12732cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom resourceName = pkg + "/" + resourceName; 12742cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 12752cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 12762cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom // Delegate to proper class loader 12772cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom ClassLoader loader = getClassLoader(); 12782cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (loader != null) { 12792cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return loader.getResource(resourceName); 12802cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } else { 12812cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return ClassLoader.getSystemResource(resourceName); 12822cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 12832cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 12842cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 12852cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 12862cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns a read-only stream for the contents of the given resource, or null if the resource 12872cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * is not found. 12882cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * The mapping between the resource name and the stream is managed by the class' class loader. 12892cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 12902cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @see ClassLoader 12912cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 12922cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public InputStream getResourceAsStream(String resourceName) { 12932cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom // Get absolute resource name, but without the leading slash 12942cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (resourceName.startsWith("/")) { 12952cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom resourceName = resourceName.substring(1); 12962cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } else { 12972cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom String pkg = getName(); 12982cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom int dot = pkg.lastIndexOf('.'); 12992cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (dot != -1) { 13002cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom pkg = pkg.substring(0, dot).replace('.', '/'); 13012cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } else { 13022cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom pkg = ""; 13032cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 13042cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 13052cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom resourceName = pkg + "/" + resourceName; 13062cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 13072cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 13082cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom // Delegate to proper class loader 13092cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom ClassLoader loader = getClassLoader(); 13102cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (loader != null) { 13112cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return loader.getResourceAsStream(resourceName); 13122cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } else { 13132cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return ClassLoader.getSystemResourceAsStream(resourceName); 13142cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 13152cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 13162cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 13172cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 13182cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns null. (On Android, a {@code ClassLoader} can load classes from multiple dex files. 13192cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * All classes from any given dex file will have the same signers, but different dex 13202cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * files may have different signers. This does not fit well with the original 13212cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * {@code ClassLoader}-based model of {@code getSigners}.) 13222cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 13232cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public Object[] getSigners() { 13242cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom // See http://code.google.com/p/android/issues/detail?id=1766. 13252cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return null; 13262cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 13272cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 13282cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 13292cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns the {@code Class} object which represents the superclass of the 13302cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * class represented by this {@code Class}. If this {@code Class} represents 13312cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * the {@code Object} class, a primitive type, an interface or void then the 13322cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * method returns {@code null}. If this {@code Class} represents an array 13332cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * class then the {@code Object} class is returned. 13342cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 13352cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public Class<? super T> getSuperclass() { 13362cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom // For interfaces superClass is Object (which agrees with the JNI spec) 13372cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom // but not with the expected behavior here. 13382cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (isInterface()) { 13392cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return null; 13402cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } else { 13412cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return superClass; 13422cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 13432cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 13442cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 13452cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 13462cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns an array containing {@code TypeVariable} objects for type 13472cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * variables declared by the generic class represented by this {@code 13482cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Class}. Returns an empty array if the class is not generic. 13492cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 13502cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom @SuppressWarnings("unchecked") 13512cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom @Override public synchronized TypeVariable<Class<T>>[] getTypeParameters() { 1352d4ec55c4e1acc3c3df937facbd367aff6618536cIan Rogers String annotationSignature = AnnotationAccess.getSignature(this); 1353d4ec55c4e1acc3c3df937facbd367aff6618536cIan Rogers if (annotationSignature == null) { 1354d4ec55c4e1acc3c3df937facbd367aff6618536cIan Rogers return EmptyArray.TYPE_VARIABLE; 1355d4ec55c4e1acc3c3df937facbd367aff6618536cIan Rogers } 13562cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom GenericSignatureParser parser = new GenericSignatureParser(getClassLoader()); 1357d4ec55c4e1acc3c3df937facbd367aff6618536cIan Rogers parser.parseForClass(this, annotationSignature); 1358d4ec55c4e1acc3c3df937facbd367aff6618536cIan Rogers return parser.formalTypeParameters; 13592cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 13602cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 13612cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 13622cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Tests whether this {@code Class} represents an annotation class. 13632cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 13642cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public boolean isAnnotation() { 13652cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom final int ACC_ANNOTATION = 0x2000; // not public in reflect.Modifier 13662cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return (accessFlags & ACC_ANNOTATION) != 0; 13672cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 13682cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 13692cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom @Override public boolean isAnnotationPresent(Class<? extends Annotation> annotationType) { 13702cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return AnnotationAccess.isAnnotationPresent(this, annotationType); 13712cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 13722cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 13732cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 13742cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Tests whether the class represented by this {@code Class} is 13752cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * anonymous. 13762cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 13772cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public boolean isAnonymousClass() { 13782cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return AnnotationAccess.isAnonymousClass(this); 13792cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 13802cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 13812cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 13822cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Tests whether the class represented by this {@code Class} is an array class. 13832cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 13842cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public boolean isArray() { 13852cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return getComponentType() != null; 13862cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 13872cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 13882cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 13892cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Is this a runtime created proxy class? 13902cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 13912cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @hide 13922cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 13932cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public boolean isProxy() { 13942cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return (accessFlags & 0x00040000) != 0; 13952cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 13962cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 13972cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 13982cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Can {@code c} be assigned to this class? For example, String can be assigned to Object 13992cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * (by an upcast), however, an Object cannot be assigned to a String as a potentially exception 14002cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * throwing downcast would be necessary. Similarly for interfaces, a class that implements (or 14012cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * an interface that extends) another can be assigned to its parent, but not vice-versa. All 14022cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Classes may assign to themselves. Classes for primitive types may not assign to each other. 14032cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 14042cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @param c the class to check. 14052cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @return {@code true} if {@code c} can be assigned to the class 14062cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * represented by this {@code Class}; {@code false} otherwise. 14072cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @throws NullPointerException if {@code c} is {@code null}. 14082cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 14092cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public boolean isAssignableFrom(Class<?> c) { 14102cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (this == c) { 14112cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return true; // Can always assign to things of the same type. 14122cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } else if (this == Object.class) { 14132cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return !c.isPrimitive(); // Can assign any reference to java.lang.Object. 14142cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } else if (isArray()) { 14152cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return c.isArray() && componentType.isAssignableFrom(c.componentType); 14162cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } else if (isInterface()) { 14172cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom // Search iftable which has a flattened and uniqued list of interfaces. 14182cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom Object[] iftable = c.ifTable; 14192cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (iftable != null) { 14202cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom for (int i = 0; i < iftable.length; i += 2) { 14212cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom Class<?> ifc = (Class<?>) iftable[i]; 14222cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (ifc == this) { 14232cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return true; 14242cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 14252cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 14262cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 14272cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return false; 14282cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } else { 14292cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (!c.isInterface()) { 14302cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom for (c = c.superClass; c != null; c = c.superClass) { 14312cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (c == this) { 14322cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return true; 14332cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 14342cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 14352cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 14362cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return false; 14372cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 14382cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 14392cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 14402cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 14412cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Tests whether the class represented by this {@code Class} is an 14422cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * {@code enum}. 14432cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 14442cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public boolean isEnum() { 1445a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers return (getSuperclass() == Enum.class) && ((accessFlags & 0x4000) != 0); 14462cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 14472cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 14482cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 14492cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Tests whether the given object can be cast to the class 14502cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * represented by this {@code Class}. This is the runtime version of the 14512cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * {@code instanceof} operator. 14522cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 14532cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @return {@code true} if {@code object} can be cast to the type 14542cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * represented by this {@code Class}; {@code false} if {@code 14552cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * object} is {@code null} or cannot be cast. 14562cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 14572cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public boolean isInstance(Object object) { 14582cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (object == null) { 14592cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return false; 14602cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 14612cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return isAssignableFrom(object.getClass()); 14622cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 14632cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 14642cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 14652cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Tests whether this {@code Class} represents an interface. 14662cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 14672cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public boolean isInterface() { 14682cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return (accessFlags & Modifier.INTERFACE) != 0; 14692cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 14702cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 14712cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 14722cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Tests whether the class represented by this {@code Class} is defined 14732cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * locally. 14742cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 14752cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public boolean isLocalClass() { 14762cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return !classNameImpliesTopLevel() 14772cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom && AnnotationAccess.getEnclosingMethodOrConstructor(this) != null 14782cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom && !isAnonymousClass(); 14792cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 14802cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 14812cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 14822cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Tests whether the class represented by this {@code Class} is a member 14832cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * class. 14842cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 14852cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public boolean isMemberClass() { 14862cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return getDeclaringClass() != null; 14872cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 14882cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 14892cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 14902cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Tests whether this {@code Class} represents a primitive type. 14912cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 14922cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public boolean isPrimitive() { 1493c519ec27ba900d5422c5a0d40388fb6620981564Hiroshi Yamauchi return (primitiveType & 0xFFFF) != 0; 14942cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 14952cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 14962cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 14972cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Tests whether this {@code Class} represents a synthetic type. 14982cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 14992cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public boolean isSynthetic() { 15002cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom final int ACC_SYNTHETIC = 0x1000; // not public in reflect.Modifier 15012cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return (accessFlags & ACC_SYNTHETIC) != 0; 15022cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 15032cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 15042cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 15052cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Indicates whether this {@code Class} or its parents override finalize. 15062cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 15072cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @hide 15082cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 15092cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public boolean isFinalizable() { 15102cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom final int ACC_CLASS_IS_FINALIZABLE = 0x80000000; // not public in reflect.Modifier 15112cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return (accessFlags & ACC_CLASS_IS_FINALIZABLE) != 0; 15122cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 15132cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 15142cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 15152cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns a new instance of the class represented by this {@code Class}, 15162cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * created by invoking the default (that is, zero-argument) constructor. If 15172cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * there is no such constructor, or if the creation fails (either because of 15182cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * a lack of available memory or because an exception is thrown by the 15192cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * constructor), an {@code InstantiationException} is thrown. If the default 15202cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * constructor exists but is not accessible from the context where this 15212cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * method is invoked, an {@code IllegalAccessException} is thrown. 15222cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 15232cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @throws IllegalAccessException 15242cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * if the default constructor is not visible. 15252cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @throws InstantiationException 15262cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * if the instance cannot be created. 15272cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 15282cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public T newInstance() throws InstantiationException, IllegalAccessException { 15292cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (isPrimitive() || isInterface() || isArray() || Modifier.isAbstract(accessFlags)) { 15302cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom throw new InstantiationException(this + " cannot be instantiated"); 15312cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 153296e2e4faf806aa22ca205354c16b04288d51ddbfJeff Hao Class<?> caller = VMStack.getStackClass1(); 153396e2e4faf806aa22ca205354c16b04288d51ddbfJeff Hao if (!caller.canAccess(this)) { 153496e2e4faf806aa22ca205354c16b04288d51ddbfJeff Hao throw new IllegalAccessException(this + " is not accessible from " + caller); 153596e2e4faf806aa22ca205354c16b04288d51ddbfJeff Hao } 15362cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom Constructor<T> init; 15372cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom try { 15382cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom init = getDeclaredConstructor(); 15392cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } catch (NoSuchMethodException e) { 15402cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom InstantiationException t = 15412cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom new InstantiationException(this + " has no zero argument constructor"); 15422cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom t.initCause(e); 15432cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom throw t; 15442cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 154596e2e4faf806aa22ca205354c16b04288d51ddbfJeff Hao if (!caller.canAccessMember(this, init.getAccessFlags())) { 154696e2e4faf806aa22ca205354c16b04288d51ddbfJeff Hao throw new IllegalAccessException(init + " is not accessible from " + caller); 154796e2e4faf806aa22ca205354c16b04288d51ddbfJeff Hao } 15482cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom try { 1549793b9ef91876cb7bea31ddf74f110ac45302f1ddJeff Hao return init.newInstance(null, init.isAccessible()); 15502cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } catch (InvocationTargetException e) { 1551793b9ef91876cb7bea31ddf74f110ac45302f1ddJeff Hao SneakyThrow.sneakyThrow(e.getCause()); 1552793b9ef91876cb7bea31ddf74f110ac45302f1ddJeff Hao return null; // Unreachable. 15532cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 15542cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 15552cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 15562cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom private boolean canAccess(Class<?> c) { 15572cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if(Modifier.isPublic(c.accessFlags)) { 15582cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return true; 15592cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 15602cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return inSamePackage(c); 15612cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 15622cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 15632cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom private boolean canAccessMember(Class<?> memberClass, int memberModifiers) { 15642cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (memberClass == this || Modifier.isPublic(memberModifiers)) { 15652cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return true; 15662cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 15672cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (Modifier.isPrivate(memberModifiers)) { 15682cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return false; 15692cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 15702cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (Modifier.isProtected(memberModifiers)) { 15712cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom for (Class<?> parent = this.superClass; parent != null; parent = parent.superClass) { 15722cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (parent == memberClass) { 15732cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return true; 15742cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 15752cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 15762cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 15772cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return inSamePackage(memberClass); 15782cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 15792cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 15802cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom private boolean inSamePackage(Class<?> c) { 15812cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (classLoader != c.classLoader) { 15822cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return false; 15832cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 15842cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom String packageName1 = getPackageName$(); 15852cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom String packageName2 = c.getPackageName$(); 15862cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (packageName1 == null) { 15872cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return packageName2 == null; 15882cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } else if (packageName2 == null) { 15892cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return false; 15902cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } else { 15912cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return packageName1.equals(packageName2); 15922cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 15932cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 15942cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 15952cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom @Override 15962cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public String toString() { 15972cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (isPrimitive()) { 15982cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return getSimpleName(); 15992cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } else { 16002cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return (isInterface() ? "interface " : "class ") + getName(); 16012cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 16022cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 16032cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 16042cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 16052cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns the {@code Package} of which the class represented by this 16062cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * {@code Class} is a member. Returns {@code null} if no {@code Package} 16072cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * object was created by the class loader of the class. 16082cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 16092cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public Package getPackage() { 1610d5178dc78b33c1d97af57b9ab047aa69717bc039Brian Carlstrom // TODO This might be a hack, but the runtime doesn't have the necessary info. 16112cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom ClassLoader loader = getClassLoader(); 16122cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (loader != null) { 16132cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom String packageName = getPackageName$(); 16142cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return packageName != null ? loader.getPackage(packageName) : null; 16152cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 16162cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return null; 16172cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 16182cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 16192cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 16202cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns the package name of this class. This returns null for classes in 16212cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * the default package. 16222cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 16232cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @hide 16242cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 16252cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public String getPackageName$() { 16262cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom String name = getName(); 16272cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom int last = name.lastIndexOf('.'); 16282cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return last == -1 ? null : name.substring(0, last); 16292cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 16302cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 16312cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 16322cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns the assertion status for the class represented by this {@code 16332cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Class}. Assertion is enabled / disabled based on the class loader, 16342cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * package or class default at runtime. 16352cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 16362cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public boolean desiredAssertionStatus() { 16372cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return false; 16382cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 16392cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 16402cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 16412cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Casts this {@code Class} to represent a subclass of the given class. 16422cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * If successful, this {@code Class} is returned; otherwise a {@code 16432cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * ClassCastException} is thrown. 16442cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 16452cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @throws ClassCastException 16462cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * if this {@code Class} cannot be cast to the given type. 16472cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 16482cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom @SuppressWarnings("unchecked") 16492cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public <U> Class<? extends U> asSubclass(Class<U> c) { 16502cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (c.isAssignableFrom(this)) { 16512cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return (Class<? extends U>)this; 16522cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 16532cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom String actualClassName = this.getName(); 16542cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom String desiredClassName = c.getName(); 16552cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom throw new ClassCastException(actualClassName + " cannot be cast to " + desiredClassName); 16562cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 16572cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 16582cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 16592cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Casts the given object to the type represented by this {@code Class}. 16602cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * If the object is {@code null} then the result is also {@code null}. 16612cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 16622cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @throws ClassCastException 16632cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * if the object cannot be cast to the given type. 16642cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 16652cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom @SuppressWarnings("unchecked") 16662cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public T cast(Object obj) { 16672cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (obj == null) { 16682cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return null; 16692cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } else if (this.isInstance(obj)) { 16702cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return (T)obj; 16712cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 16722cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom String actualClassName = obj.getClass().getName(); 16732cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom String desiredClassName = this.getName(); 16742cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom throw new ClassCastException(actualClassName + " cannot be cast to " + desiredClassName); 16752cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 16762cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 16772cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 1678a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers * The class def of this class in its own Dex, or -1 if there is no class def. 16792cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 1680a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers * @hide 1681a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers */ 1682a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers public int getDexClassDefIndex() { 1683a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers return (dexClassDefIndex == 65535) ? -1 : dexClassDefIndex; 1684a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers } 1685a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers 1686a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers /** 1687a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers * The type index of this class in its own Dex, or -1 if it is unknown. If a class is referenced 1688a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers * by multiple Dex files, it will have a different type index in each. Dex files support 65534 1689a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers * type indices, with 65535 representing no index. 16902cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 16912cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @hide 16922cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 1693a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers public int getDexTypeIndex() { 1694a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers int typeIndex = dexTypeIndex; 1695a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers if (typeIndex != 65535) { 1696a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers return typeIndex; 1697a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers } 1698a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers synchronized (this) { 1699a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers typeIndex = dexTypeIndex; 1700a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers if (typeIndex == 65535) { 1701a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers if (dexClassDefIndex >= 0) { 1702a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers typeIndex = getDex().typeIndexFromClassDefIndex(dexClassDefIndex); 1703a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers } else { 1704a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers typeIndex = getDex().findTypeIndex(InternalNames.getInternalName(this)); 1705a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers if (typeIndex < 0) { 1706a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers typeIndex = -1; 1707a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers } 1708a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers } 1709a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers dexTypeIndex = typeIndex; 1710a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers } 17112cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 1712a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers return typeIndex; 17132cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 17142cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 17152cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 17162cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * The annotation directory offset of this class in its own Dex, or 0 if it 17172cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * is unknown. 17182cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 17192cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * TODO: 0 is a sentinel that means 'no annotations directory'; this should be -1 if unknown 17202cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 17212cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @hide 17222cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 1723a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers public int getDexAnnotationDirectoryOffset() { 1724a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers Dex dex = getDex(); 1725a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers if (dex == null) { 1726a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers return 0; 1727a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers } 1728a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers int classDefIndex = getDexClassDefIndex(); 1729a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers if (classDefIndex < 0) { 1730a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers return 0; 1731a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers } 1732a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers return dex.annotationDirectoryOffsetFromClassDefIndex(classDefIndex); 1733a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers } 1734d4ec55c4e1acc3c3df937facbd367aff6618536cIan Rogers 1735a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers private static class Caches { 1736a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers /** 1737a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers * Cache to avoid frequent recalculation of generic interfaces, which is generally uncommon. 1738a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers * Sized sufficient to allow ConcurrentHashMapTest to run without recalculating its generic 1739a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers * interfaces (required to avoid time outs). Validated by running reflection heavy code 1740a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers * such as applications using Guice-like frameworks. 1741a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers */ 1742a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers private static final BasicLruCache<Class, Type[]> genericInterfaces 1743a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers = new BasicLruCache<Class, Type[]>(8); 1744a6e22fc9b70ebe39abd716ce37450bda935c0fb8Ian Rogers } 17452cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom} 1746