| /* |
| * Copyright 2002,2004 The Apache Software Foundation. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package org.apache.commons.jelly.util; |
| |
| import java.io.PrintStream; |
| import java.io.PrintWriter; |
| |
| /** |
| * A {@link RuntimeException} which is nested to preserve stack traces. |
| * |
| * This class allows the following code to be written to convert a regular |
| * Exception into a {@link RuntimeException} without losing the stack trace. |
| * |
| * <pre> |
| * try { |
| * ... |
| * } catch (Exception e) { |
| * throw new RuntimeException(e); |
| * } |
| * </pre> |
| * |
| * @author James Strachan |
| * @version $Revision: 1.2 $ |
| */ |
| |
| public class NestedRuntimeException extends RuntimeException { |
| |
| /** |
| * Holds the reference to the exception or error that caused |
| * this exception to be thrown. |
| */ |
| private Throwable cause = null; |
| |
| /** |
| * Constructs a new <code>NestedRuntimeException</code> with specified |
| * nested <code>Throwable</code>. |
| * |
| * @param cause the exception or error that caused this exception to be |
| * thrown |
| */ |
| public NestedRuntimeException(Throwable cause) { |
| super(cause.getMessage()); |
| this.cause = cause; |
| } |
| |
| /** |
| * Constructs a new <code>NestedRuntimeException</code> with specified |
| * detail message and nested <code>Throwable</code>. |
| * |
| * @param msg the error message |
| * @param cause the exception or error that caused this exception to be |
| * thrown |
| */ |
| public NestedRuntimeException(String msg, Throwable cause) { |
| super(msg); |
| this.cause = cause; |
| } |
| |
| public Throwable getCause() { |
| return cause; |
| } |
| |
| public void printStackTrace() { |
| cause.printStackTrace(); |
| } |
| |
| public void printStackTrace(PrintStream out) { |
| cause.printStackTrace(out); |
| } |
| |
| public void printStackTrace(PrintWriter out) { |
| cause.printStackTrace(out); |
| } |
| |
| } |