| /* UndeclaredThrowableException.java -- wraps an undeclared checked exception |
| thrown by a Proxy invocation handler |
| Copyright (C) 2001, 2002, 2005 Free Software Foundation, Inc. |
| |
| This file is part of GNU Classpath. |
| |
| GNU Classpath is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2, or (at your option) |
| any later version. |
| |
| GNU Classpath is distributed in the hope that it will be useful, but |
| WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with GNU Classpath; see the file COPYING. If not, write to the |
| Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
| 02110-1301 USA. |
| |
| Linking this library statically or dynamically with other modules is |
| making a combined work based on this library. Thus, the terms and |
| conditions of the GNU General Public License cover the whole |
| combination. |
| |
| As a special exception, the copyright holders of this library give you |
| permission to link this library with independent modules to produce an |
| executable, regardless of the license terms of these independent |
| modules, and to copy and distribute the resulting executable under |
| terms of your choice, provided that you also meet, for each linked |
| independent module, the terms and conditions of the license of that |
| module. An independent module is a module which is not derived from |
| or based on this library. If you modify this library, you may extend |
| this exception to your version of the library, but you are not |
| obligated to do so. If you do not wish to do so, delete this |
| exception statement from your version. */ |
| |
| |
| package java.lang.reflect; |
| |
| /** |
| * This exception class is thrown by a {@link Proxy} instance if |
| * the {@link InvocationHandler#invoke(Object, Method, Object[]) invoke} |
| * method of that instance's InvocationHandler attempts to throw an |
| * exception that not declared by the throws clauses of all of the |
| * interface methods that the proxy instance is implementing. |
| * |
| * <p>When thrown by Proxy, this class will always wrap a checked |
| * exception, never {@link Error} or {@link RuntimeException}, |
| * which are unchecked. |
| * |
| * @author Eric Blake (ebb9@email.byu.edu) |
| * @see Proxy |
| * @see InvocationHandler |
| * @since 1.3 |
| * @status updated to 1.4 |
| */ |
| public class UndeclaredThrowableException extends RuntimeException |
| { |
| /** |
| * Compatible with JDK 1.3+. |
| */ |
| private static final long serialVersionUID = 330127114055056639L; |
| |
| /** |
| * The immutable exception that this wraps. This field is redundant |
| * with {@link Throwable#getCause()}, but is necessary for serial compatibility. |
| * |
| * @serial the chained exception |
| */ |
| private final Throwable undeclaredThrowable; |
| |
| /** |
| * Wraps the given checked exception into a RuntimeException, with no |
| * detail message. {@link Throwable#initCause(Throwable)} will fail |
| * on this instance. |
| * |
| * @param cause the undeclared throwable that caused this exception, |
| * may be null |
| */ |
| public UndeclaredThrowableException(Throwable cause) |
| { |
| this(cause, null); |
| } |
| |
| /** |
| * Wraps the given checked exception into a RuntimeException, with the |
| * specified detail message. {@link Throwable#initCause(Throwable)} will |
| * fail on this instance. |
| * |
| * @param cause the undeclared throwable that caused this exception, |
| * may be null |
| * @param message the message, may be null |
| */ |
| public UndeclaredThrowableException(Throwable cause, String message) |
| { |
| super(message, cause); |
| undeclaredThrowable = cause; |
| } |
| |
| /** |
| * Returns the cause of this exception. If this exception was created |
| * by a {@link Proxy} instance, it will be a non-null checked |
| * exception. This method pre-dates exception chaining, and is now |
| * simply a longer way to call <code>getCause()</code>. |
| * |
| * @return the cause of this exception, may be null |
| * @see #getCause() |
| */ |
| public Throwable getUndeclaredThrowable() |
| { |
| return undeclaredThrowable; |
| } |
| |
| /** |
| * Returns the cause of this exception. If this exception was created |
| * by a {@link Proxy} instance, it will be a non-null checked |
| * exception. |
| * |
| * @return the cause of this exception, may be null |
| * @since 1.4 |
| */ |
| public Throwable getCause() |
| { |
| return undeclaredThrowable; |
| } |
| } |