1 /* 2 * Licensed to the Apache Software Foundation (ASF) under one or more 3 * contributor license agreements. See the NOTICE file distributed with 4 * this work for additional information regarding copyright ownership. 5 * The ASF licenses this file to You under the Apache License, Version 2.0 6 * (the "License"); you may not use this file except in compliance with 7 * the License. You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 */ 17 18 package java.lang; 19 20 /** 21 * Thrown when a program attempts to cast a an object to a type with which it is 22 * not compatible. 23 */ 24 public class ClassCastException extends RuntimeException { 25 private static final long serialVersionUID = -9223365651070458532L; 26 27 /** 28 * Constructs a new {@code ClassCastException} that includes the current 29 * stack trace. 30 */ ClassCastException()31 public ClassCastException() { 32 super(); 33 } 34 35 /** 36 * Constructs a new {@code ClassCastException} with the current stack trace 37 * and the specified detail message. 38 * 39 * @param detailMessage 40 * the detail message for this exception. 41 */ ClassCastException(String detailMessage)42 public ClassCastException(String detailMessage) { 43 super(detailMessage); 44 } 45 46 /** 47 * Constructs a new {@code ClassCastException} with the current stack trace 48 * and a detail message based on the source and target class. 49 * 50 * @param instanceClass 51 * the class being cast from. 52 * @param castClass 53 * the class being cast to. 54 */ ClassCastException(Class<?> instanceClass, Class<?> castClass)55 ClassCastException(Class<?> instanceClass, Class<?> castClass) { 56 super(String.format("%s incompatible with %s", instanceClass.getName(), 57 castClass.getName())); 58 } 59 } 60