1/* Licensed to the Apache Software Foundation (ASF) under one or more 2 * contributor license agreements. See the NOTICE file distributed with 3 * this work for additional information regarding copyright ownership. 4 * The ASF licenses this file to You under the Apache License, Version 2.0 5 * (the "License"); you may not use this file except in compliance with 6 * the License. You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package java.lang; 18 19/** 20 * Thrown when a program tries to access a class, interface, enum or annotation 21 * type through a string that contains the type's name and the type cannot be 22 * found. This exception is an unchecked alternative to 23 * {@link java.lang.ClassNotFoundException}. 24 * 25 * @since 1.5 26 */ 27public class TypeNotPresentException extends RuntimeException { 28 private static final long serialVersionUID = -5101214195716534496L; 29 30 private String typeName; 31 32 /** 33 * Constructs a new {@code TypeNotPresentException} with the current stack 34 * trace, a detail message that includes the name of the type that could not 35 * be found and the {@code Throwable} that caused this exception. 36 * 37 * @param typeName 38 * the fully qualified name of the type that could not be found. 39 * @param cause 40 * the optional cause of this exception, may be {@code null}. 41 */ 42 public TypeNotPresentException(String typeName, Throwable cause) { 43 super("Type " + typeName + " not present", cause); 44 this.typeName = typeName; 45 } 46 47 /** 48 * Gets the fully qualified name of the type that could not be found. 49 * 50 * @return the name of the type that caused this exception. 51 */ 52 public String typeName() { 53 return typeName; 54 } 55} 56