Class.java revision 2cf03dc15c40b92634ff606694af5a6e9aa4db09
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.AbstractMethod; 412cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstromimport java.lang.reflect.AccessibleObject; 422cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstromimport java.lang.reflect.AnnotatedElement; 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; 532cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstromimport java.security.ProtectionDomain; 542cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstromimport java.util.ArrayList; 552cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstromimport java.util.Arrays; 562cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstromimport java.util.List; 572cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstromimport libcore.reflect.AnnotationAccess; 582cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstromimport libcore.reflect.GenericSignatureParser; 592cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstromimport libcore.reflect.InternalNames; 602cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstromimport libcore.reflect.Types; 612cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstromimport libcore.util.CollectionUtils; 622cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstromimport libcore.util.EmptyArray; 632cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 642cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom/** 652cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * The in-memory representation of a Java class. This representation serves as 662cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * the starting point for querying class-related information, a process usually 672cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * called "reflection". There are basically three types of {@code Class} 682cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * instances: those representing real classes and interfaces, those representing 692cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * primitive types, and those representing array classes. 702cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 712cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * <h4>Class instances representing object types (classes or interfaces)</h4> 722cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * <p> 732cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * These represent an ordinary class or interface as found in the class 742cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * hierarchy. The name associated with these {@code Class} instances is simply 752cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * the fully qualified class name of the class or interface that it represents. 762cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * In addition to this human-readable name, each class is also associated by a 772cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * so-called <em>descriptor</em>, which is the letter "L", followed by the 782cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * class name and a semicolon (";"). The descriptor is what the runtime system 792cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * uses internally for identifying the class (for example in a DEX file). 802cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * </p> 812cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * <h4>Classes representing primitive types</h4> 822cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * <p> 832cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * These represent the standard Java primitive types and hence share their 842cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * names (for example "int" for the {@code int} primitive type). Although it is 852cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * not possible to create new instances based on these {@code Class} instances, 862cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * they are still useful for providing reflection information, and as the 872cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * component type of array classes. There is one {@code Class} instance for each 882cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * primitive type, and their descriptors are: 892cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * </p> 902cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * <ul> 912cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * <li>{@code B} representing the {@code byte} primitive type</li> 922cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * <li>{@code S} representing the {@code short} primitive type</li> 932cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * <li>{@code I} representing the {@code int} primitive type</li> 942cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * <li>{@code J} representing the {@code long} primitive type</li> 952cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * <li>{@code F} representing the {@code float} primitive type</li> 962cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * <li>{@code D} representing the {@code double} primitive type</li> 972cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * <li>{@code C} representing the {@code char} primitive type</li> 982cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * <li>{@code Z} representing the {@code boolean} primitive type</li> 992cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * <li>{@code V} representing void function return values</li> 1002cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * </ul> 1012cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * <p> 1022cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * <h4>Classes representing array classes</h4> 1032cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * <p> 1042cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * These represent the classes of Java arrays. There is one such {@code Class} 1052cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * instance per combination of array leaf component type and arity (number of 1062cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * dimensions). In this case, the name associated with the {@code Class} 1072cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * consists of one or more left square brackets (one per dimension in the array) 1082cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * followed by the descriptor of the class representing the leaf component type, 1092cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * which can be either an object type or a primitive type. The descriptor of a 1102cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * {@code Class} representing an array type is the same as its name. Examples 1112cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * of array class descriptors are: 1122cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * </p> 1132cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * <ul> 1142cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * <li>{@code [I} representing the {@code int[]} type</li> 1152cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * <li>{@code [Ljava/lang/String;} representing the {@code String[]} type</li> 1162cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * <li>{@code [[[C} representing the {@code char[][][]} type (three dimensions!)</li> 1172cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * </ul> 1182cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 1192cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrompublic final class Class<T> implements Serializable, AnnotatedElement, GenericDeclaration, Type { 1202cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 1212cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom private static final long serialVersionUID = 3206093459760846163L; 1222cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 1232cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** defining class loader, or NULL for the "bootstrap" system loader. */ 1242cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom private transient ClassLoader classLoader; 1252cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 1262cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 1272cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * For array classes, the component class object for instanceof/checkcast (for String[][][], 1282cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * this will be String[][]). NULL for non-array classes. 1292cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 1302cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom private transient Class<?> componentType; 1312cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 1322cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * DexCache of resolved constant pool entries. Will be null for certain VM-generated classes 1332cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * e.g. arrays and primitive classes. 1342cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 1352cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom private transient DexCache dexCache; 1362cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 1372cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** static, private, and <init> methods. */ 1382cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom private transient AbstractMethod[] directMethods; 1392cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 1402cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 1412cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Instance fields. These describe the layout of the contents of an Object. Note that only the 1422cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * fields directly declared by this class are listed in iFields; fields declared by a 1432cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * superclass are listed in the superclass's Class.iFields. 1442cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 1452cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * All instance fields that refer to objects are guaranteed to be at the beginning of the field 1462cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * list. {@link Class#numReferenceInstanceFields} specifies the number of reference fields. 1472cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 1482cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom private transient Field[] iFields; 1492cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 1502cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 1512cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * The interface table (iftable_) contains pairs of a interface class and an array of the 1522cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * interface methods. There is one pair per interface supported by this class. That 1532cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * means one pair for each interface we support directly, indirectly via superclass, or 1542cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * indirectly via a superinterface. This will be null if neither we nor our superclass 1552cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * implement any interfaces. 1562cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 1572cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Why we need this: given "class Foo implements Face", declare "Face faceObj = new Foo()". 1582cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Invoke faceObj.blah(), where "blah" is part of the Face interface. We can't easily use a 1592cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * single vtable. 1602cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 1612cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * For every interface a concrete class implements, we create an array of the concrete vtable_ 1622cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * methods for the methods in the interface. 1632cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 1642cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom private transient Object[] ifTable; 1652cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 1662cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** Lazily computed name of this class; always prefer calling getName(). */ 1672cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom private transient String name; 1682cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 1692cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** Static fields */ 1702cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom private transient Field[] sFields; 1712cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 1722cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** The superclass, or NULL if this is java.lang.Object, an interface or primitive type. */ 1732cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom private transient Class<? super T> superClass; 1742cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 1752cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** If class verify fails, we must return same error on subsequent tries. */ 1762cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom private transient Class<?> verifyErrorClass; 1772cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 1782cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** Virtual methods defined in this class; invoked through vtable. */ 1792cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom private transient Method[] virtualMethods; 1802cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 1812cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 1822cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Virtual method table (vtable), for use by "invoke-virtual". The vtable from the superclass 1832cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * is copied in, and virtual methods from our class either replace those from the super or are 1842cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * appended. For abstract classes, methods may be created in the vtable that aren't in 1852cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * virtual_ methods_ for miranda methods. 1862cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 1872cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom private transient Method[] vtable; 1882cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 1892cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** access flags; low 16 bits are defined by VM spec */ 1902cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom private transient int accessFlags; 1912cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 1922cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 1932cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Total size of the Class instance; used when allocating storage on GC heap. 1942cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * See also {@link Class#objectSize}. 1952cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 1962cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom private transient int classSize; 1972cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 1982cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 1992cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * tid used to check for recursive static initializer invocation. 2002cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 2012cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom private transient int clinitThreadId; 2022cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 2032cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 2042cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Type index from dex file. 2052cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * TODO: really 16bits 2062cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 2072cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom private transient int dexTypeIndex; 2082cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 2092cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** Number of instance fields that are object references. */ 2102cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom private transient int numReferenceInstanceFields; 2112cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 2122cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** Number of static fields that are object references. */ 2132cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom private transient int numReferenceStaticFields; 2142cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 2152cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 2162cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Total object size; used when allocating storage on GC heap. For interfaces and abstract 2172cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * classes this will be zero. See also {@link Class#classSize}. 2182cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 2192cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom private transient int objectSize; 2202cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 2212cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** Primitive type value, or 0 if not a primitive type; set for generated primitive classes. */ 2222cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom private transient int primitiveType; 2232cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 2242cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** Bitmap of offsets of iFields. */ 2252cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom private transient int referenceInstanceOffsets; 2262cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 2272cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** Bitmap of offsets of sFields. */ 2282cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom private transient int referenceStaticOffsets; 2292cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 2302cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** State of class initialization */ 2312cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom private transient int status; 2322cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 2332cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom private Class() { 2342cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom // Prevent this class to be instantiated, instance should be created by JVM only 2352cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 2362cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 2372cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 2382cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns a {@code Class} object which represents the class with the 2392cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * given name. The name should be the name of a non-primitive class, as described in 2402cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * the {@link Class class definition}. 2412cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Primitive types can not be found using this method; use {@code int.class} or {@code Integer.TYPE} instead. 2422cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 2432cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * <p>If the class has not yet been loaded, it is loaded and initialized 2442cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * first. This is done through either the class loader of the calling class 2452cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * or one of its parent class loaders. It is possible that a static initializer is run as 2462cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * a result of this call. 2472cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 2482cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @throws ClassNotFoundException 2492cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * if the requested class cannot be found. 2502cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @throws LinkageError 2512cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * if an error occurs during linkage 2522cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @throws ExceptionInInitializerError 2532cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * if an exception occurs during static initialization of a 2542cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * class. 2552cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 2562cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public static Class<?> forName(String className) throws ClassNotFoundException { 2572cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return forName(className, true, VMStack.getCallingClassLoader()); 2582cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 2592cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 2602cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 2612cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns a {@code Class} object which represents the class with the 2622cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * given name. The name should be the name of a non-primitive class, as described in 2632cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * the {@link Class class definition}. 2642cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Primitive types can not be found using this method; use {@code int.class} or {@code Integer.TYPE} instead. 2652cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 2662cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * <p>If the class has not yet been loaded, it is loaded first, using the given class loader. 2672cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * If the class has not yet been initialized and {@code shouldInitialize} is true, 2682cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * the class will be initialized. 2692cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 2702cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @throws ClassNotFoundException 2712cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * if the requested class cannot be found. 2722cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @throws LinkageError 2732cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * if an error occurs during linkage 2742cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @throws ExceptionInInitializerError 2752cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * if an exception occurs during static initialization of a 2762cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * class. 2772cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 2782cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public static Class<?> forName(String className, boolean shouldInitialize, 2792cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom ClassLoader classLoader) throws ClassNotFoundException { 2802cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 2812cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (classLoader == null) { 2822cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom classLoader = ClassLoader.getSystemClassLoader(); 2832cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 2842cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom // Catch an Exception thrown by the underlying native code. It wraps 2852cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom // up everything inside a ClassNotFoundException, even if e.g. an 2862cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom // Error occurred during initialization. This as a workaround for 2872cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom // an ExceptionInInitializerError that's also wrapped. It is actually 2882cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom // expected to be thrown. Maybe the same goes for other errors. 2892cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom // Not wrapping up all the errors will break android though. 2902cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom Class<?> result; 2912cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom try { 2922cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom result = classForName(className, shouldInitialize, classLoader); 2932cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } catch (ClassNotFoundException e) { 2942cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom Throwable cause = e.getCause(); 2952cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (cause instanceof LinkageError) { 2962cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom throw (LinkageError) cause; 2972cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 2982cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom throw e; 2992cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 3002cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return result; 3012cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 3022cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 3032cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom static native Class<?> classForName(String className, boolean shouldInitialize, 3042cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom ClassLoader classLoader) throws ClassNotFoundException; 3052cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 3062cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 3072cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns an array containing {@code Class} objects for all public classes, 3082cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * interfaces, enums and annotations that are members of this class and its 3092cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * superclasses. This does not include classes of implemented interfaces. 3102cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * If there are no such class members or if this object represents a primitive type then an array 3112cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * of length 0 is returned. 3122cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 3132cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public Class<?>[] getClasses() { 3142cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom List<Class<?>> result = new ArrayList<Class<?>>(); 3152cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom for (Class<?> c = this; c != null; c = c.superClass) { 3162cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom for (Class<?> member : c.getDeclaredClasses()) { 3172cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (Modifier.isPublic(member.getModifiers())) { 3182cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom result.add(member); 3192cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 3202cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 3212cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 3222cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return result.toArray(new Class[result.size()]); 3232cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 3242cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 3252cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom @Override public <A extends Annotation> A getAnnotation(Class<A> annotationType) { 3262cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return AnnotationAccess.getAnnotation(this, annotationType); 3272cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 3282cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 3292cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 3302cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns an array containing all the annotations of this class. If there are no annotations 3312cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * then an empty array is returned. 3322cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 3332cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @see #getDeclaredAnnotations() 3342cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 3352cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom @Override public Annotation[] getAnnotations() { 3362cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return AnnotationAccess.getAnnotations(this); 3372cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 3382cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 3392cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 3402cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns the canonical name of this class. If this class does not have a 3412cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * canonical name as defined in the Java Language Specification, then the 3422cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * method returns {@code null}. 3432cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 3442cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public String getCanonicalName() { 3452cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (isLocalClass() || isAnonymousClass()) 3462cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return null; 3472cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 3482cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (isArray()) { 3492cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /* 3502cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * The canonical name of an array type depends on the (existence of) 3512cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * the component type's canonical name. 3522cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 3532cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom String name = getComponentType().getCanonicalName(); 3542cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (name != null) { 3552cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return name + "[]"; 3562cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 3572cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } else if (isMemberClass()) { 3582cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /* 3592cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * The canonical name of an inner class depends on the (existence 3602cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * of) the declaring class' canonical name. 3612cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 3622cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom String name = getDeclaringClass().getCanonicalName(); 3632cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (name != null) { 3642cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return name + "." + getSimpleName(); 3652cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 3662cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } else { 3672cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /* 3682cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * The canonical name of a top-level class or primitive type is 3692cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * equal to the fully qualified name. 3702cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 3712cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return getName(); 3722cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 3732cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 3742cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /* 3752cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Other classes don't have a canonical name. 3762cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 3772cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return null; 3782cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 3792cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 3802cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 3812cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns the class loader which was used to load the class represented by 3822cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * this {@code Class}. Implementations are free to return {@code null} for 3832cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * classes that were loaded by the bootstrap class loader. The Android 3842cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * reference implementation, though, always returns a reference to an actual 3852cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * class loader. 3862cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 3872cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public ClassLoader getClassLoader() { 3882cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (this.isPrimitive()) { 3892cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return null; 3902cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 3912cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 3922cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom ClassLoader loader = getClassLoaderImpl(); 3932cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (loader == null) { 3942cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom loader = BootClassLoader.getInstance(); 3952cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 3962cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return loader; 3972cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 3982cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 3992cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 4002cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * This must be provided by the VM vendor, as it is used by other provided 4012cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * class implementations in this package. Outside of this class, it is used 4022cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * by SecurityManager.classLoaderDepth(), 4032cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * currentClassLoader() and currentLoadedClass(). Return the ClassLoader for 4042cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * this Class without doing any security checks. The bootstrap ClassLoader 4052cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * is returned, unlike getClassLoader() which returns null in place of the 4062cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * bootstrap ClassLoader. 4072cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 4082cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom ClassLoader getClassLoaderImpl() { 4092cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom ClassLoader loader = classLoader; 4102cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return loader == null ? BootClassLoader.getInstance() : loader; 4112cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 4122cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 4132cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 4142cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns a {@code Class} object which represents the component type if 4152cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * this class represents an array type. Returns {@code null} if this class 4162cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * does not represent an array type. The component type of an array type is 4172cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * the type of the elements of the array. 4182cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 4192cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public Class<?> getComponentType() { 4202cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return componentType; 4212cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 4222cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 4232cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 4242cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns the dex file from which this class was loaded. 4252cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 4262cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @hide 4272cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 4282cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public native Dex getDex(); 4292cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 4302cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 4312cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns a string from the dex cache, computing the string from the dex file if necessary 4322cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 4332cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @hide 4342cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 4352cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public String getDexCacheString(Dex dex, int dexStringIndex) { 4362cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom String[] dexCacheStrings = dexCache.strings; 4372cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom String s = dexCacheStrings[dexStringIndex]; 4382cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (s == null) { 4392cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom s = dex.strings().get(dexStringIndex); 4402cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom dexCacheStrings[dexStringIndex] = s; 4412cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 4422cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return s; 4432cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 4442cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 4452cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 4462cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns a resolved type from the dex cache, computing the string from the dex file if 4472cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * necessary 4482cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 4492cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @hide 4502cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 4512cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public Class<?> getDexCacheType(Dex dex, int dexTypeIndex) { 4522cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom Class<?>[] dexCacheResolvedTypes = dexCache.resolvedTypes; 4532cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom Class<?> resolvedType = dexCacheResolvedTypes[dexTypeIndex]; 4542cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (resolvedType == null) { 4552cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom int descriptorIndex = dex.typeIds().get(dexTypeIndex); 4562cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom String descriptor = getDexCacheString(dex, descriptorIndex); 4572cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom resolvedType = InternalNames.getClass(getClassLoader(), descriptor); 4582cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom dexCacheResolvedTypes[dexTypeIndex] = resolvedType; 4592cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 4602cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return resolvedType; 4612cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 4622cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 4632cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 4642cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns a {@code Constructor} object which represents the public 4652cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * constructor matching the given parameter types. 4662cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * {@code (Class[]) null} is equivalent to the empty array. 4672cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 4682cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @throws NoSuchMethodException 4692cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * if the constructor cannot be found. 4702cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @see #getDeclaredConstructor(Class[]) 4712cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 4722cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public Constructor<T> getConstructor(Class<?>... parameterTypes) throws NoSuchMethodException { 4732cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return getConstructor(parameterTypes, true); 4742cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 4752cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 4762cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 4772cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns a {@code Constructor} object which represents the constructor 4782cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * matching the specified parameter types that is declared by the class 4792cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * represented by this {@code Class}. 4802cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * {@code (Class[]) null} is equivalent to the empty array. 4812cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 4822cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @throws NoSuchMethodException 4832cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * if the requested constructor cannot be found. 4842cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @see #getConstructor(Class[]) 4852cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 4862cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public Constructor<T> getDeclaredConstructor(Class<?>... parameterTypes) 4872cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom throws NoSuchMethodException { 4882cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return getConstructor(parameterTypes, false); 4892cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 4902cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 4912cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 4922cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns a constructor with the given parameters. 4932cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 4942cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @param publicOnly true to only return public constructores. 4952cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @param parameterTypes argument types to match the constructor's. 4962cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 4972cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom private Constructor<T> getConstructor(Class<?>[] parameterTypes, boolean publicOnly) 4982cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom throws NoSuchMethodException { 4992cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (parameterTypes == null) { 5002cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom parameterTypes = EmptyArray.CLASS; 5012cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 5022cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom for (Class<?> c : parameterTypes) { 5032cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (c == null) { 5042cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom throw new NoSuchMethodException("parameter type is null"); 5052cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 5062cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 5072cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom Constructor<T> result = getDeclaredConstructorInternal(parameterTypes); 5082cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (result == null || publicOnly && !Modifier.isPublic(result.getAccessFlags())) { 5092cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom throw new NoSuchMethodException("<init> " + Arrays.toString(parameterTypes)); 5102cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 5112cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return result; 5122cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 5132cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 5142cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 5152cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns the constructor with the given parameters if it is defined by this class; null 5162cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * otherwise. This may return a non-public member. 5172cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 5182cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @param args the types of the parameters to the constructor. 5192cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 5202cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom private Constructor<T> getDeclaredConstructorInternal(Class<?>[] args) { 5212cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (directMethods != null) { 5222cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom for (AbstractMethod m : directMethods) { 5232cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (m instanceof Constructor && Arrays.equals(args, m.getParameterTypes())) { 5242cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return (Constructor<T>) m; 5252cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 5262cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 5272cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 5282cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return null; 5292cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 5302cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 5312cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 5322cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns an array containing {@code Constructor} objects for all public 5332cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * constructors for this {@code Class}. If there 5342cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * are no public constructors or if this {@code Class} represents an array 5352cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * class, a primitive type or void then an empty array is returned. 5362cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 5372cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @see #getDeclaredConstructors() 5382cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 5392cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public Constructor<?>[] getConstructors() { 5402cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom ArrayList<Constructor<T>> constructors = new ArrayList(); 5412cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom getDeclaredConstructors(true, constructors); 5422cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return constructors.toArray(new Constructor[constructors.size()]); 5432cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 5442cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 5452cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 5462cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns an array containing {@code Constructor} objects for all 5472cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * constructors declared in the class represented by this {@code Class}. If 5482cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * there are no constructors or if this {@code Class} represents an array 5492cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * class, a primitive type or void then an empty array is returned. 5502cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 5512cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @see #getConstructors() 5522cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 5532cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public Constructor<?>[] getDeclaredConstructors() { 5542cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom ArrayList<Constructor<T>> constructors = new ArrayList(); 5552cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom getDeclaredConstructors(false, constructors); 5562cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return constructors.toArray(new Constructor[constructors.size()]); 5572cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 5582cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 5592cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom private void getDeclaredConstructors(boolean publicOnly, List<Constructor<T>> constructors) { 5602cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (directMethods != null) { 5612cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom for (AbstractMethod m : directMethods) { 5622cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom int modifiers = m.getAccessFlags(); 5632cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (!publicOnly || Modifier.isPublic(modifiers)) { 5642cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (m instanceof Constructor) { 5652cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom constructors.add((Constructor<T>) m); 5662cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 5672cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 5682cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 5692cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 5702cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 5712cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 5722cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 5732cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns a {@code Method} object which represents the method matching the 5742cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * specified name and parameter types that is declared by the class 5752cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * represented by this {@code Class}. 5762cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 5772cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @param name 5782cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * the requested method's name. 5792cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @param parameterTypes 5802cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * the parameter types of the requested method. 5812cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * {@code (Class[]) null} is equivalent to the empty array. 5822cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @return the method described by {@code name} and {@code parameterTypes}. 5832cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @throws NoSuchMethodException 5842cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * if the requested constructor cannot be found. 5852cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @throws NullPointerException 5862cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * if {@code name} is {@code null}. 5872cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @see #getMethod(String, Class[]) 5882cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 5892cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public Method getDeclaredMethod(String name, Class<?>... parameterTypes) 5902cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom throws NoSuchMethodException { 5912cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return getMethod(name, parameterTypes, false); 5922cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 5932cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 5942cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 5952cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns a {@code Method} object which represents the public method with 5962cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * the specified name and parameter types. 5972cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * {@code (Class[]) null} is equivalent to the empty array. 5982cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * This method first searches the 5992cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * class C represented by this {@code Class}, then the superclasses of C and 6002cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * finally the interfaces implemented by C and finally the superclasses of C 6012cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * for a method with matching name. 6022cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 6032cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @throws NoSuchMethodException 6042cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * if the method cannot be found. 6052cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @see #getDeclaredMethod(String, Class[]) 6062cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 6072cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public Method getMethod(String name, Class<?>... parameterTypes) throws NoSuchMethodException { 6082cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return getMethod(name, parameterTypes, true); 6092cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 6102cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 6112cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom private Method getMethod(String name, Class<?>[] parameterTypes, boolean recursivePublicMethods) 6122cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom throws NoSuchMethodException { 6132cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (name == null) { 6142cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom throw new NullPointerException("name == null"); 6152cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 6162cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (parameterTypes == null) { 6172cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom parameterTypes = EmptyArray.CLASS; 6182cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 6192cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom for (Class<?> c : parameterTypes) { 6202cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (c == null) { 6212cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom throw new NoSuchMethodException("parameter type is null"); 6222cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 6232cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 6242cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom Method result = recursivePublicMethods ? getPublicMethodRecursive(name, parameterTypes) 6252cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom : getDeclaredMethodInternal(name, parameterTypes); 6262cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom // Fail if we didn't find the method or it was expected to be public. 6272cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (result == null || 6282cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom (recursivePublicMethods && !Modifier.isPublic(result.getAccessFlags()))) { 6292cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom throw new NoSuchMethodException(name + " " + Arrays.toString(parameterTypes)); 6302cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 6312cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return result; 6322cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 6332cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 6342cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom private Method getPublicMethodRecursive(String name, Class<?>[] parameterTypes) { 6352cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom // search superclasses 6362cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom for (Class<?> c = this; c != null; c = c.getSuperclass()) { 6372cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom Method result = c.getDeclaredMethodInternal(name, parameterTypes); 6382cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (result != null && Modifier.isPublic(result.getAccessFlags())) { 6392cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return result; 6402cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 6412cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 6422cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom // search iftable which has a flattened and uniqued list of interfaces 6432cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom Object[] iftable = ifTable; 6442cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (iftable != null) { 6452cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom for (int i = 0; i < iftable.length; i += 2) { 6462cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom Class<?> ifc = (Class<?>) iftable[i]; 6472cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom Method result = ifc.getPublicMethodRecursive(name, parameterTypes); 6482cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (result != null && Modifier.isPublic(result.getAccessFlags())) { 6492cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return result; 6502cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 6512cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 6522cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 6532cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return null; 6542cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 6552cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 6562cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 6572cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns the method if it is defined by this class; null otherwise. This may return a 6582cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * non-public member. 6592cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 6602cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @param name the method name 6612cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @param args the method's parameter types 6622cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 6632cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom private Method getDeclaredMethodInternal(String name, Class<?>[] args) { 6642cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom // Covariant return types permit the class to define multiple 6652cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom // methods with the same name and parameter types. Prefer to 6662cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom // return a non-synthetic method in such situations. We may 6672cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom // still return a synthetic method to handle situations like 6682cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom // escalated visibility. We never return miranda methods that 6692cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom // were synthesized by the VM. 6702cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom int skipModifiers = Modifier.MIRANDA | Modifier.SYNTHETIC; 6712cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom AbstractMethod result = null; 6722cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (directMethods != null) { 6732cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom for (AbstractMethod m : directMethods) { 6742cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (name.equals(m.getName()) && Arrays.equals(args, m.getParameterTypes()) && 6752cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom m instanceof Method) { 6762cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom int modifiers = m.getAccessFlags(); 6772cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if ((modifiers & skipModifiers) == 0) { 6782cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return (Method) m; 6792cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } else { 6802cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom // Direct methods cannot be miranda methods, 6812cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom // so this potential result must be synthetic. 6822cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom result = m; 6832cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 6842cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 6852cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 6862cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 6872cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (result == null) { 6882cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (virtualMethods != null) { 6892cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom for (Method m : virtualMethods) { 6902cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (name.equals(m.getName()) && Arrays.equals(args, m.getParameterTypes())) { 6912cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom int modifiers = m.getAccessFlags(); 6922cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if ((modifiers & skipModifiers) == 0) { 6932cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return (Method) m; 6942cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } else if ((modifiers & Modifier.MIRANDA) == 0) { 6952cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom // Remember as potential result if it's not a miranda method. 6962cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom result = m; 6972cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 6982cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 6992cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 7002cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 7012cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 7022cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return (Method) result; 7032cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 7042cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 7052cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 7062cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns an array containing {@code Method} objects for all methods 7072cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * declared in the class represented by this {@code Class}. If there are no 7082cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * methods or if this {@code Class} represents an array class, a primitive 7092cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * type or void then an empty array is returned. 7102cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 7112cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @see #getMethods() 7122cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 7132cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public Method[] getDeclaredMethods() { 7142cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom int initial_size = virtualMethods == null ? 0 : virtualMethods.length; 7152cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom initial_size += directMethods == null ? 0 : directMethods.length; 7162cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom ArrayList<Method> methods = new ArrayList<Method>(initial_size); 7172cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom getDeclaredMethods(false, methods); 7182cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom Method[] result = methods.toArray(new Method[methods.size()]); 7192cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom for (Method m : result) { 7202cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom // Throw NoClassDefFoundError if types cannot be resolved. 7212cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom m.getReturnType(); 7222cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom m.getParameterTypes(); 7232cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 7242cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return result; 7252cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 7262cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 7272cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 7282cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 7292cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns the list of methods without performing any security checks 7302cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * first. If no methods exist, an empty array is returned. 7312cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 7322cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom private void getDeclaredMethods(boolean publicOnly, List<Method> methods) { 7332cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (virtualMethods != null) { 7342cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom for (Method m : virtualMethods) { 7352cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom int modifiers = m.getAccessFlags(); 7362cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (!publicOnly || Modifier.isPublic(modifiers)) { 7372cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom // Add non-miranda virtual methods. 7382cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if ((modifiers & Modifier.MIRANDA) == 0) { 7392cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom methods.add((Method) m); 7402cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 7412cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 7422cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 7432cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 7442cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (directMethods != null) { 7452cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom for (AbstractMethod m : directMethods) { 7462cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom int modifiers = m.getAccessFlags(); 7472cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (!publicOnly || Modifier.isPublic(modifiers)) { 7482cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom // Add non-constructor direct/static methods. 7492cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (m instanceof Method) { 7502cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom methods.add((Method) m); 7512cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 7522cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 7532cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 7542cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 7552cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 7562cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 7572cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 7582cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns an array containing {@code Method} objects for all public methods 7592cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * for the class C represented by this {@code Class}. Methods may be 7602cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * declared in C, the interfaces it implements or in the superclasses of C. 7612cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * The elements in the returned array are in no particular order. 7622cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 7632cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * <p>If there are no public methods or if this {@code Class} represents a 7642cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * primitive type or {@code void} then an empty array is returned. 7652cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 7662cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @see #getDeclaredMethods() 7672cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 7682cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public Method[] getMethods() { 7692cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom List<Method> methods = new ArrayList<Method>(); 7702cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom getPublicMethodsInternal(methods); 7712cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /* 7722cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Remove duplicate methods defined by superclasses and 7732cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * interfaces, preferring to keep methods declared by derived 7742cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * types. 7752cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 7762cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom CollectionUtils.removeDuplicates(methods, Method.ORDER_BY_SIGNATURE); 7772cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return methods.toArray(new Method[methods.size()]); 7782cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 7792cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 7802cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 7812cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Populates {@code result} with public methods defined by this class, its 7822cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * superclasses, and all implemented interfaces, including overridden methods. 7832cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 7842cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom private void getPublicMethodsInternal(List<Method> result) { 7852cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom getDeclaredMethods(true, result); 7862cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (!isInterface()) { 7872cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom // Search superclasses, for interfaces don't search java.lang.Object. 7882cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom for (Class<?> c = superClass; c != null; c = c.superClass) { 7892cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom c.getDeclaredMethods(true, result); 7902cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 7912cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 7922cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom // Search iftable which has a flattened and uniqued list of interfaces. 7932cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom Object[] iftable = ifTable; 7942cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (iftable != null) { 7952cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom for (int i = 0; i < iftable.length; i += 2) { 7962cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom Class<?> ifc = (Class<?>) iftable[i]; 7972cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom ifc.getDeclaredMethods(true, result); 7982cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 7992cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 8002cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 8012cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 8022cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 8032cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns the annotations that are directly defined on the class 8042cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * represented by this {@code Class}. Annotations that are inherited are not 8052cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * included in the result. If there are no annotations at all, an empty 8062cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * array is returned. 8072cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 8082cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @see #getAnnotations() 8092cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 8102cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom @Override public Annotation[] getDeclaredAnnotations() { 8112cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom List<Annotation> result = AnnotationAccess.getDeclaredAnnotations(this); 8122cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return result.toArray(new Annotation[result.size()]); 8132cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 8142cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 8152cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 8162cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns an array containing {@code Class} objects for all classes, 8172cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * interfaces, enums and annotations that are members of this class. 8182cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 8192cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public Class<?>[] getDeclaredClasses() { 8202cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return AnnotationAccess.getMemberClasses(this); 8212cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 8222cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 8232cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 8242cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns a {@code Field} object for the field with the given name 8252cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * which is declared in the class represented by this {@code Class}. 8262cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 8272cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @throws NoSuchFieldException if the requested field can not be found. 8282cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @see #getField(String) 8292cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 8302cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public Field getDeclaredField(String name) throws NoSuchFieldException { 8312cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (name == null) { 8322cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom throw new NullPointerException("name == null"); 8332cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 8342cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom Field result = getDeclaredFieldInternal(name); 8352cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (result == null) { 8362cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom throw new NoSuchFieldException(name); 8372cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } else { 8382cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom result.getType(); // Throw NoClassDefFoundError if type cannot be resolved. 8392cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 8402cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return result; 8412cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 8422cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 8432cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 8442cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns an array containing {@code Field} objects for all fields declared 8452cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * in the class represented by this {@code Class}. If there are no fields or 8462cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * if this {@code Class} represents an array class, a primitive type or void 8472cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * then an empty array is returned. 8482cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 8492cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @see #getFields() 8502cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 8512cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public Field[] getDeclaredFields() { 8522cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom int initial_size = sFields == null ? 0 : sFields.length; 8532cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom initial_size += iFields == null ? 0 : iFields.length; 8542cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom ArrayList<Field> fields = new ArrayList(initial_size); 8552cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom getDeclaredFields(false, fields); 8562cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom Field[] result = fields.toArray(new Field[fields.size()]); 8572cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom for (Field f : result) { 8582cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom f.getType(); // Throw NoClassDefFoundError if type cannot be resolved. 8592cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 8602cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return result; 8612cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 8622cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 8632cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom private void getDeclaredFields(boolean publicOnly, List<Field> fields) { 8642cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (iFields != null) { 8652cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom for (Field f : iFields) { 8662cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (!publicOnly || Modifier.isPublic(f.getModifiers())) { 8672cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom fields.add(f); 8682cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 8692cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 8702cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 8712cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (sFields != null) { 8722cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom for (Field f : sFields) { 8732cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (!publicOnly || Modifier.isPublic(f.getModifiers())) { 8742cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom fields.add(f); 8752cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 8762cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 8772cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 8782cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 8792cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 8802cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 8812cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns the field if it is defined by this class; null otherwise. This 8822cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * may return a non-public member. 8832cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 8842cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom private Field getDeclaredFieldInternal(String name) { 8852cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (iFields != null) { 8862cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom for (Field f : iFields) { 8872cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (f.getName().equals(name)) { 8882cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return f; 8892cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 8902cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 8912cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 8922cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (sFields != null) { 8932cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom for (Field f : sFields) { 8942cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (f.getName().equals(name)) { 8952cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return f; 8962cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 8972cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 8982cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 8992cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return null; 9002cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 9012cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 9022cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 9032cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns the class that this class is a member of, or {@code null} if this 9042cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * class is a top-level class, a primitive, an array, or defined within a 9052cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * method or constructor. 9062cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 9072cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public Class<?> getDeclaringClass() { 9082cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return AnnotationAccess.getDeclaringClass(this); 9092cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 9102cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 9112cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 9122cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns the class enclosing this class. For most classes this is the same 9132cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * as the {@link #getDeclaringClass() declaring class}. For classes defined 9142cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * within a method or constructor (typically anonymous inner classes), this 9152cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * is the declaring class of that member. 9162cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 9172cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public Class<?> getEnclosingClass() { 9182cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom Class<?> declaringClass = getDeclaringClass(); 9192cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (declaringClass != null) { 9202cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return declaringClass; 9212cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 9222cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom AccessibleObject member = AnnotationAccess.getEnclosingMethodOrConstructor(this); 9232cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return member != null 9242cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom ? ((Member) member).getDeclaringClass() 9252cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom : null; 9262cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 9272cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 9282cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 9292cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns the enclosing {@code Constructor} of this {@code Class}, if it is an 9302cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * anonymous or local/automatic class; otherwise {@code null}. 9312cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 9322cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public Constructor<?> getEnclosingConstructor() { 9332cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (classNameImpliesTopLevel()) { 9342cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return null; 9352cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 9362cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom AccessibleObject result = AnnotationAccess.getEnclosingMethodOrConstructor(this); 9372cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return result instanceof Constructor ? (Constructor<?>) result : null; 9382cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 9392cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 9402cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 9412cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns the enclosing {@code Method} of this {@code Class}, if it is an 9422cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * anonymous or local/automatic class; otherwise {@code null}. 9432cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 9442cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public Method getEnclosingMethod() { 9452cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (classNameImpliesTopLevel()) { 9462cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return null; 9472cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 9482cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom AccessibleObject result = AnnotationAccess.getEnclosingMethodOrConstructor(this); 9492cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return result instanceof Method ? (Method) result : null; 9502cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 9512cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 9522cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 9532cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns true if this class is definitely a top level class, or false if 9542cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * a more expensive check like {@link #getEnclosingClass()} is necessary. 9552cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 9562cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * <p>This is a hack that exploits an implementation detail of all Java 9572cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * language compilers: generated names always contain "$". As it is possible 9582cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * for a top level class to be named with a "$", a false result <strong>does 9592cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * not</strong> indicate that this isn't a top-level class. 9602cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 9612cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom private boolean classNameImpliesTopLevel() { 9622cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return !getName().contains("$"); 9632cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 9642cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 9652cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 9662cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns the {@code enum} constants associated with this {@code Class}. 9672cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns {@code null} if this {@code Class} does not represent an {@code 9682cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * enum} type. 9692cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 9702cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom @SuppressWarnings("unchecked") // we only cast after confirming that this class is an enum 9712cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public T[] getEnumConstants() { 9722cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (!isEnum()) { 9732cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return null; 9742cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 9752cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return (T[]) Enum.getSharedConstants((Class) this).clone(); 9762cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 9772cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 9782cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 9792cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns a {@code Field} object which represents the public field with the 9802cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * given name. This method first searches the class C represented by 9812cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * this {@code Class}, then the interfaces implemented by C and finally the 9822cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * superclasses of C. 9832cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 9842cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @throws NoSuchFieldException 9852cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * if the field cannot be found. 9862cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @see #getDeclaredField(String) 9872cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 9882cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public Field getField(String name) throws NoSuchFieldException { 9892cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (name == null) { 9902cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom throw new NullPointerException("name == null"); 9912cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 9922cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom Field result = getPublicFieldRecursive(name); 9932cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (result == null) { 9942cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom throw new NoSuchFieldException(name); 9952cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } else { 9962cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom result.getType(); // Throw NoClassDefFoundError if type cannot be resolved. 9972cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 9982cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return result; 9992cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 10002cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 10012cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom private Field getPublicFieldRecursive(String name) { 10022cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom // search superclasses 10032cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom for (Class<?> c = this; c != null; c = c.superClass) { 10042cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom Field result = c.getDeclaredFieldInternal(name); 10052cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (result != null && (result.getModifiers() & Modifier.PUBLIC) != 0) { 10062cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return result; 10072cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 10082cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 10092cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 10102cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom // search iftable which has a flattened and uniqued list of interfaces 10112cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (ifTable != null) { 10122cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom for (int i = 0; i < ifTable.length; i += 2) { 10132cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom Class<?> ifc = (Class<?>) ifTable[i]; 10142cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom Field result = ifc.getPublicFieldRecursive(name); 10152cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (result != null && (result.getModifiers() & Modifier.PUBLIC) != 0) { 10162cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return result; 10172cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 10182cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 10192cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 10202cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 10212cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return null; 10222cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 10232cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 10242cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 10252cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns an array containing {@code Field} objects for all public fields 10262cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * for the class C represented by this {@code Class}. Fields may be declared 10272cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * in C, the interfaces it implements or in the superclasses of C. The 10282cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * elements in the returned array are in no particular order. 10292cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 10302cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * <p>If there are no public fields or if this class represents an array class, 10312cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * a primitive type or {@code void} then an empty array is returned. 10322cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 10332cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @see #getDeclaredFields() 10342cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 10352cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public Field[] getFields() { 10362cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom List<Field> fields = new ArrayList<Field>(); 10372cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom getPublicFieldsRecursive(fields); 10382cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom Field[] result = fields.toArray(new Field[fields.size()]); 10392cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom for (Field f : result) { 10402cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom f.getType(); // Throw NoClassDefFoundError if type cannot be resolved. 10412cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 10422cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return result; 10432cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 10442cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 10452cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 10462cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Populates {@code result} with public fields defined by this class, its 10472cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * superclasses, and all implemented interfaces. 10482cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 10492cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom private void getPublicFieldsRecursive(List<Field> result) { 10502cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom // search superclasses 10512cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom for (Class<?> c = this; c != null; c = c.superClass) { 10522cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom c.getDeclaredFields(true, result); 10532cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 10542cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 10552cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom // search iftable which has a flattened and uniqued list of interfaces 10562cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom Object[] iftable = ifTable; 10572cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (iftable != null) { 10582cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom for (int i = 0; i < iftable.length; i += 2) { 10592cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom Class<?> ifc = (Class<?>) iftable[i]; 10602cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom ifc.getDeclaredFields(true, result); 10612cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 10622cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 10632cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 10642cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 10652cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 10662cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns the {@link Type}s of the interfaces that this {@code Class} directly 10672cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * implements. If the {@code Class} represents a primitive type or {@code 10682cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * void} then an empty array is returned. 10692cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 10702cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public Type[] getGenericInterfaces() { 10712cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom GenericSignatureParser parser = new GenericSignatureParser(getClassLoader()); 10722cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom parser.parseForClass(this, AnnotationAccess.getSignature(this)); 10732cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return Types.getClonedTypeArray(parser.interfaceTypes); 10742cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 10752cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 10762cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 10772cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns the {@code Type} that represents the superclass of this {@code 10782cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * class}. 10792cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 10802cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public Type getGenericSuperclass() { 10812cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom GenericSignatureParser parser = new GenericSignatureParser(getClassLoader()); 10822cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom parser.parseForClass(this, AnnotationAccess.getSignature(this)); 10832cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return Types.getType(parser.superclassType); 10842cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 10852cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 10862cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 10872cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns an array of {@code Class} objects that match the interfaces 10882cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * in the {@code implements} declaration of the class represented 10892cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * by this {@code Class}. The order of the elements in the array is 10902cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * identical to the order in the original class declaration. If the class 10912cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * does not implement any interfaces, an empty array is returned. 10922cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 10932cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * <p>This method only returns directly-implemented interfaces, and does not 10942cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * include interfaces implemented by superclasses or superinterfaces of any 10952cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * implemented interfaces. 10962cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 10972cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public Class<?>[] getInterfaces() { 10982cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (isArray()) { 10992cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return new Class<?>[] { Cloneable.class, Serializable.class }; 11002cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } else if (isProxy()) { 11012cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return getProxyInterfaces(); 11022cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } else { 11032cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return AnnotationAccess.typeIndexToInterfaces(this, getDex(), getTypeIndex()); 11042cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 11052cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 11062cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 11072cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom // Returns the interfaces that this proxy class directly implements. 11082cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom private native Class<?>[] getProxyInterfaces(); 11092cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 11102cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 11112cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns an integer that represents the modifiers of the class represented 11122cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * by this {@code Class}. The returned value is a combination of bits 11132cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * defined by constants in the {@link Modifier} class. 11142cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 11152cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public int getModifiers() { 11162cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom int JAVA_FLAGS_MASK = 0xffff; 11172cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom int modifiers = AnnotationAccess.getInnerClassFlags(this, accessFlags & JAVA_FLAGS_MASK); 11182cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return modifiers & JAVA_FLAGS_MASK; 11192cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 11202cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 11212cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 11222cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns the name of the class represented by this {@code Class}. For a 11232cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * description of the format which is used, see the class definition of 11242cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * {@link Class}. 11252cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 11262cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public String getName() { 11272cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom String result = name; 11282cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return (result == null) ? (name = getNameNative()) : result; 11292cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 11302cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 11312cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom private native String getNameNative(); 11322cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 11332cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 11342cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns the simple name of the class represented by this {@code Class} as 11352cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * defined in the source code. If there is no name (that is, the class is 11362cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * anonymous) then an empty string is returned. If the receiver is an array 11372cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * then the name of the underlying type with square braces appended (for 11382cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * example {@code "Integer[]"}) is returned. 11392cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 11402cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @return the simple name of the class represented by this {@code Class}. 11412cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 11422cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public String getSimpleName() { 11432cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (isArray()) { 11442cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return getComponentType().getSimpleName() + "[]"; 11452cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 11462cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 11472cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (isAnonymousClass()) { 11482cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return ""; 11492cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 11502cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 11512cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (isMemberClass() || isLocalClass()) { 11522cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return getInnerClassName(); 11532cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 11542cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 11552cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom String name = getName(); 11562cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom int dot = name.lastIndexOf('.'); 11572cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (dot != -1) { 11582cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return name.substring(dot + 1); 11592cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 11602cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 11612cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return name; 11622cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 11632cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 11642cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 11652cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns the simple name of a member or local class, or null otherwise. 11662cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 11672cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom private String getInnerClassName() { 11682cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return AnnotationAccess.getInnerClassName(this); 11692cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 11702cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 11712cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 11722cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns null. 11732cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 11742cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public ProtectionDomain getProtectionDomain() { 11752cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return null; 11762cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 11772cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 11782cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 11792cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns the URL of the given resource, or null if the resource is not found. 11802cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * The mapping between the resource name and the URL is managed by the class' class loader. 11812cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 11822cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @see ClassLoader 11832cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 11842cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public URL getResource(String resourceName) { 11852cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom // Get absolute resource name, but without the leading slash 11862cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (resourceName.startsWith("/")) { 11872cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom resourceName = resourceName.substring(1); 11882cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } else { 11892cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom String pkg = getName(); 11902cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom int dot = pkg.lastIndexOf('.'); 11912cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (dot != -1) { 11922cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom pkg = pkg.substring(0, dot).replace('.', '/'); 11932cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } else { 11942cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom pkg = ""; 11952cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 11962cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 11972cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom resourceName = pkg + "/" + resourceName; 11982cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 11992cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 12002cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom // Delegate to proper class loader 12012cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom ClassLoader loader = getClassLoader(); 12022cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (loader != null) { 12032cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return loader.getResource(resourceName); 12042cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } else { 12052cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return ClassLoader.getSystemResource(resourceName); 12062cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 12072cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 12082cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 12092cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 12102cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns a read-only stream for the contents of the given resource, or null if the resource 12112cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * is not found. 12122cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * The mapping between the resource name and the stream is managed by the class' class loader. 12132cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 12142cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @see ClassLoader 12152cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 12162cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public InputStream getResourceAsStream(String resourceName) { 12172cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom // Get absolute resource name, but without the leading slash 12182cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (resourceName.startsWith("/")) { 12192cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom resourceName = resourceName.substring(1); 12202cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } else { 12212cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom String pkg = getName(); 12222cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom int dot = pkg.lastIndexOf('.'); 12232cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (dot != -1) { 12242cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom pkg = pkg.substring(0, dot).replace('.', '/'); 12252cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } else { 12262cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom pkg = ""; 12272cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 12282cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 12292cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom resourceName = pkg + "/" + resourceName; 12302cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 12312cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 12322cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom // Delegate to proper class loader 12332cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom ClassLoader loader = getClassLoader(); 12342cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (loader != null) { 12352cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return loader.getResourceAsStream(resourceName); 12362cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } else { 12372cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return ClassLoader.getSystemResourceAsStream(resourceName); 12382cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 12392cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 12402cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 12412cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 12422cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns null. (On Android, a {@code ClassLoader} can load classes from multiple dex files. 12432cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * All classes from any given dex file will have the same signers, but different dex 12442cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * files may have different signers. This does not fit well with the original 12452cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * {@code ClassLoader}-based model of {@code getSigners}.) 12462cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 12472cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public Object[] getSigners() { 12482cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom // See http://code.google.com/p/android/issues/detail?id=1766. 12492cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return null; 12502cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 12512cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 12522cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 12532cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns the {@code Class} object which represents the superclass of the 12542cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * class represented by this {@code Class}. If this {@code Class} represents 12552cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * the {@code Object} class, a primitive type, an interface or void then the 12562cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * method returns {@code null}. If this {@code Class} represents an array 12572cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * class then the {@code Object} class is returned. 12582cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 12592cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public Class<? super T> getSuperclass() { 12602cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom // For interfaces superClass is Object (which agrees with the JNI spec) 12612cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom // but not with the expected behavior here. 12622cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (isInterface()) { 12632cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return null; 12642cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } else { 12652cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return superClass; 12662cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 12672cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 12682cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 12692cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 12702cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns an array containing {@code TypeVariable} objects for type 12712cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * variables declared by the generic class represented by this {@code 12722cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Class}. Returns an empty array if the class is not generic. 12732cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 12742cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom @SuppressWarnings("unchecked") 12752cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom @Override public synchronized TypeVariable<Class<T>>[] getTypeParameters() { 12762cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom GenericSignatureParser parser = new GenericSignatureParser(getClassLoader()); 12772cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom parser.parseForClass(this, AnnotationAccess.getSignature(this)); 12782cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return parser.formalTypeParameters.clone(); 12792cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 12802cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 12812cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 12822cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Tests whether this {@code Class} represents an annotation class. 12832cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 12842cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public boolean isAnnotation() { 12852cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom final int ACC_ANNOTATION = 0x2000; // not public in reflect.Modifier 12862cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return (accessFlags & ACC_ANNOTATION) != 0; 12872cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 12882cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 12892cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom @Override public boolean isAnnotationPresent(Class<? extends Annotation> annotationType) { 12902cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return AnnotationAccess.isAnnotationPresent(this, annotationType); 12912cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 12922cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 12932cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 12942cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Tests whether the class represented by this {@code Class} is 12952cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * anonymous. 12962cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 12972cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public boolean isAnonymousClass() { 12982cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return AnnotationAccess.isAnonymousClass(this); 12992cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 13002cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 13012cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 13022cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Tests whether the class represented by this {@code Class} is an array class. 13032cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 13042cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public boolean isArray() { 13052cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return getComponentType() != null; 13062cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 13072cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 13082cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 13092cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Is this a runtime created proxy class? 13102cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 13112cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @hide 13122cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 13132cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public boolean isProxy() { 13142cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return (accessFlags & 0x00040000) != 0; 13152cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 13162cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 13172cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 13182cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Can {@code c} be assigned to this class? For example, String can be assigned to Object 13192cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * (by an upcast), however, an Object cannot be assigned to a String as a potentially exception 13202cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * throwing downcast would be necessary. Similarly for interfaces, a class that implements (or 13212cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * an interface that extends) another can be assigned to its parent, but not vice-versa. All 13222cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Classes may assign to themselves. Classes for primitive types may not assign to each other. 13232cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 13242cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @param c the class to check. 13252cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @return {@code true} if {@code c} can be assigned to the class 13262cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * represented by this {@code Class}; {@code false} otherwise. 13272cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @throws NullPointerException if {@code c} is {@code null}. 13282cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 13292cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public boolean isAssignableFrom(Class<?> c) { 13302cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (this == c) { 13312cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return true; // Can always assign to things of the same type. 13322cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } else if (this == Object.class) { 13332cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return !c.isPrimitive(); // Can assign any reference to java.lang.Object. 13342cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } else if (isArray()) { 13352cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return c.isArray() && componentType.isAssignableFrom(c.componentType); 13362cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } else if (isInterface()) { 13372cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom // Search iftable which has a flattened and uniqued list of interfaces. 13382cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom Object[] iftable = c.ifTable; 13392cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (iftable != null) { 13402cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom for (int i = 0; i < iftable.length; i += 2) { 13412cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom Class<?> ifc = (Class<?>) iftable[i]; 13422cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (ifc == this) { 13432cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return true; 13442cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 13452cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 13462cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 13472cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return false; 13482cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } else { 13492cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (!c.isInterface()) { 13502cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom for (c = c.superClass; c != null; c = c.superClass) { 13512cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (c == this) { 13522cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return true; 13532cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 13542cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 13552cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 13562cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return false; 13572cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 13582cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 13592cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 13602cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 13612cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Tests whether the class represented by this {@code Class} is an 13622cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * {@code enum}. 13632cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 13642cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public boolean isEnum() { 13652cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return ((getModifiers() & 0x4000) != 0) && (getSuperclass() == Enum.class); 13662cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 13672cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 13682cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 13692cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Tests whether the given object can be cast to the class 13702cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * represented by this {@code Class}. This is the runtime version of the 13712cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * {@code instanceof} operator. 13722cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 13732cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @return {@code true} if {@code object} can be cast to the type 13742cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * represented by this {@code Class}; {@code false} if {@code 13752cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * object} is {@code null} or cannot be cast. 13762cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 13772cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public boolean isInstance(Object object) { 13782cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (object == null) { 13792cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return false; 13802cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 13812cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return isAssignableFrom(object.getClass()); 13822cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 13832cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 13842cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 13852cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Tests whether this {@code Class} represents an interface. 13862cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 13872cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public boolean isInterface() { 13882cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return (accessFlags & Modifier.INTERFACE) != 0; 13892cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 13902cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 13912cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 13922cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Tests whether the class represented by this {@code Class} is defined 13932cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * locally. 13942cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 13952cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public boolean isLocalClass() { 13962cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return !classNameImpliesTopLevel() 13972cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom && AnnotationAccess.getEnclosingMethodOrConstructor(this) != null 13982cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom && !isAnonymousClass(); 13992cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 14002cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 14012cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 14022cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Tests whether the class represented by this {@code Class} is a member 14032cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * class. 14042cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 14052cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public boolean isMemberClass() { 14062cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return getDeclaringClass() != null; 14072cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 14082cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 14092cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 14102cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Tests whether this {@code Class} represents a primitive type. 14112cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 14122cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public boolean isPrimitive() { 14132cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return primitiveType != 0; 14142cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 14152cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 14162cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 14172cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Tests whether this {@code Class} represents a synthetic type. 14182cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 14192cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public boolean isSynthetic() { 14202cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom final int ACC_SYNTHETIC = 0x1000; // not public in reflect.Modifier 14212cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return (accessFlags & ACC_SYNTHETIC) != 0; 14222cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 14232cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 14242cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 14252cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Indicates whether this {@code Class} or its parents override finalize. 14262cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 14272cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @hide 14282cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 14292cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public boolean isFinalizable() { 14302cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom final int ACC_CLASS_IS_FINALIZABLE = 0x80000000; // not public in reflect.Modifier 14312cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return (accessFlags & ACC_CLASS_IS_FINALIZABLE) != 0; 14322cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 14332cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 14342cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 14352cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns a new instance of the class represented by this {@code Class}, 14362cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * created by invoking the default (that is, zero-argument) constructor. If 14372cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * there is no such constructor, or if the creation fails (either because of 14382cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * a lack of available memory or because an exception is thrown by the 14392cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * constructor), an {@code InstantiationException} is thrown. If the default 14402cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * constructor exists but is not accessible from the context where this 14412cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * method is invoked, an {@code IllegalAccessException} is thrown. 14422cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 14432cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @throws IllegalAccessException 14442cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * if the default constructor is not visible. 14452cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @throws InstantiationException 14462cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * if the instance cannot be created. 14472cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 14482cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public T newInstance() throws InstantiationException, IllegalAccessException { 14492cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (isPrimitive() || isInterface() || isArray() || Modifier.isAbstract(accessFlags)) { 14502cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom throw new InstantiationException(this + " cannot be instantiated"); 14512cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 14522cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom Class<?> caller = VMStack.getStackClass1(); 14532cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (!caller.canAccess(this)) { 14542cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom throw new IllegalAccessException(this + " is not accessible from " + caller); 14552cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 14562cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom Constructor<T> init; 14572cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom try { 14582cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom init = getDeclaredConstructor(); 14592cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } catch (NoSuchMethodException e) { 14602cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom InstantiationException t = 14612cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom new InstantiationException(this + " has no zero argument constructor"); 14622cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom t.initCause(e); 14632cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom throw t; 14642cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 14652cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (!caller.canAccessMember(this, init.getAccessFlags())) { 14662cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom throw new IllegalAccessException(init + " is not accessible from " + caller); 14672cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 14682cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom try { 14692cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return init.newInstance(); 14702cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } catch (InvocationTargetException e) { 14712cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom InstantiationException t = new InstantiationException(this); 14722cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom t.initCause(e); 14732cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom throw t; 14742cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 14752cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 14762cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 14772cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom private boolean canAccess(Class<?> c) { 14782cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if(Modifier.isPublic(c.accessFlags)) { 14792cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return true; 14802cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 14812cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return inSamePackage(c); 14822cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 14832cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 14842cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom private boolean canAccessMember(Class<?> memberClass, int memberModifiers) { 14852cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (memberClass == this || Modifier.isPublic(memberModifiers)) { 14862cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return true; 14872cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 14882cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (Modifier.isPrivate(memberModifiers)) { 14892cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return false; 14902cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 14912cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (Modifier.isProtected(memberModifiers)) { 14922cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom for (Class<?> parent = this.superClass; parent != null; parent = parent.superClass) { 14932cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (parent == memberClass) { 14942cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return true; 14952cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 14962cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 14972cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 14982cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return inSamePackage(memberClass); 14992cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 15002cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 15012cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom private boolean inSamePackage(Class<?> c) { 15022cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (classLoader != c.classLoader) { 15032cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return false; 15042cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 15052cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom String packageName1 = getPackageName$(); 15062cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom String packageName2 = c.getPackageName$(); 15072cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (packageName1 == null) { 15082cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return packageName2 == null; 15092cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } else if (packageName2 == null) { 15102cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return false; 15112cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } else { 15122cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return packageName1.equals(packageName2); 15132cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 15142cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 15152cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 15162cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom @Override 15172cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public String toString() { 15182cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (isPrimitive()) { 15192cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return getSimpleName(); 15202cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } else { 15212cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return (isInterface() ? "interface " : "class ") + getName(); 15222cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 15232cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 15242cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 15252cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 15262cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns the {@code Package} of which the class represented by this 15272cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * {@code Class} is a member. Returns {@code null} if no {@code Package} 15282cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * object was created by the class loader of the class. 15292cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 15302cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public Package getPackage() { 15312cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom // TODO This might be a hack, but the VM doesn't have the necessary info. 15322cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom ClassLoader loader = getClassLoader(); 15332cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (loader != null) { 15342cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom String packageName = getPackageName$(); 15352cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return packageName != null ? loader.getPackage(packageName) : null; 15362cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 15372cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return null; 15382cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 15392cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 15402cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 15412cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns the package name of this class. This returns null for classes in 15422cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * the default package. 15432cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 15442cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @hide 15452cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 15462cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public String getPackageName$() { 15472cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom String name = getName(); 15482cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom int last = name.lastIndexOf('.'); 15492cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return last == -1 ? null : name.substring(0, last); 15502cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 15512cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 15522cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 15532cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Returns the assertion status for the class represented by this {@code 15542cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Class}. Assertion is enabled / disabled based on the class loader, 15552cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * package or class default at runtime. 15562cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 15572cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public boolean desiredAssertionStatus() { 15582cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return false; 15592cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 15602cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 15612cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 15622cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Casts this {@code Class} to represent a subclass of the given class. 15632cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * If successful, this {@code Class} is returned; otherwise a {@code 15642cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * ClassCastException} is thrown. 15652cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 15662cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @throws ClassCastException 15672cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * if this {@code Class} cannot be cast to the given type. 15682cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 15692cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom @SuppressWarnings("unchecked") 15702cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public <U> Class<? extends U> asSubclass(Class<U> c) { 15712cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (c.isAssignableFrom(this)) { 15722cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return (Class<? extends U>)this; 15732cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 15742cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom String actualClassName = this.getName(); 15752cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom String desiredClassName = c.getName(); 15762cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom throw new ClassCastException(actualClassName + " cannot be cast to " + desiredClassName); 15772cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 15782cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 15792cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 15802cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * Casts the given object to the type represented by this {@code Class}. 15812cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * If the object is {@code null} then the result is also {@code null}. 15822cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 15832cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @throws ClassCastException 15842cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * if the object cannot be cast to the given type. 15852cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 15862cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom @SuppressWarnings("unchecked") 15872cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public T cast(Object obj) { 15882cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (obj == null) { 15892cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return null; 15902cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } else if (this.isInstance(obj)) { 15912cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return (T)obj; 15922cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 15932cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom String actualClassName = obj.getClass().getName(); 15942cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom String desiredClassName = this.getName(); 15952cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom throw new ClassCastException(actualClassName + " cannot be cast to " + desiredClassName); 15962cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 15972cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 15982cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 15992cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * The type index of this class in its own Dex, or 0 if it is unknown. If a 16002cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * class is referenced by multiple Dex files, it will have a different type 16012cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * index in each. Dex files support 65534 type indices, with 65535 16022cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * representing no index. 16032cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 16042cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * TODO: 0 is a valid index; this should be -1 if it is unknown 16052cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 16062cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @hide 16072cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 16082cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public int getTypeIndex() { 16092cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom int result = dexTypeIndex; 16102cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom if (result == 0) { // uncomputed => Dalvik 16112cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom result = AnnotationAccess.computeTypeIndex(getDex(), this); 16122cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom dexTypeIndex = result; 16132cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 16142cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom return result; 16152cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom } 16162cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom 16172cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom /** 16182cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * The annotation directory offset of this class in its own Dex, or 0 if it 16192cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * is unknown. 16202cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 16212cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * TODO: 0 is a sentinel that means 'no annotations directory'; this should be -1 if unknown 16222cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * 16232cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom * @hide 16242cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom */ 16252cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom public native int getAnnotationDirectoryOffset(); 16262cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom // TODO: Use native code rather than: 16272cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom // return AnnotationAccess.typeIndexToAnnotationDirectoryOffset(getDex(), getTypeIndex()); 16282cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom // as native code has access to fast maps between type indices and class 16292cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom // defs. Move fast maps to managed code. 16302cf03dc15c40b92634ff606694af5a6e9aa4db09Brian Carlstrom} 1631