1 /* 2 * Copyright (c) 2003, 2020, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package java.lang; 27 28 /** 29 * Thrown when an application tries to access a type using a string 30 * representing the type's name, but no definition for the type with 31 * the specified name can be found. This exception differs from 32 * {@link ClassNotFoundException} in that {@code ClassNotFoundException} is a 33 * checked exception, whereas this exception is unchecked. 34 * 35 * <p>Note that this exception may be used when undefined type variables 36 * are accessed as well as when types (e.g., classes, interfaces or 37 * annotation types) are loaded. 38 * In particular, this exception can be thrown by the {@linkplain 39 * java.lang.reflect.AnnotatedElement API used to read annotations 40 * reflectively}. 41 * 42 * @author Josh Bloch 43 * @see java.lang.reflect.AnnotatedElement 44 * @since 1.5 45 */ 46 public class TypeNotPresentException extends RuntimeException { 47 @java.io.Serial 48 private static final long serialVersionUID = -5101214195716534496L; 49 50 /** 51 * The type name. 52 */ 53 private String typeName; 54 55 /** 56 * Constructs a {@code TypeNotPresentException} for the named type 57 * with the specified cause. 58 * 59 * @param typeName the fully qualified name of the unavailable type 60 * @param cause the exception that was thrown when the system attempted to 61 * load the named type, or {@code null} if unavailable or inapplicable 62 */ TypeNotPresentException(String typeName, Throwable cause)63 public TypeNotPresentException(String typeName, Throwable cause) { 64 super("Type " + typeName + " not present", cause); 65 this.typeName = typeName; 66 } 67 68 /** 69 * Returns the fully qualified name of the unavailable type. 70 * 71 * @return the fully qualified name of the unavailable type 72 */ typeName()73 public String typeName() { return typeName;} 74 } 75