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jlechner |
/* InvocationTargetException.java -- Wrapper exception for reflection
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Copyright (C) 1998, 1999, 2000, 2001, 2002, 2005 Free Software Foundation, Inc.
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This file is part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Classpath; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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02110-1301 USA.
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Linking this library statically or dynamically with other modules is
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making a combined work based on this library. Thus, the terms and
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conditions of the GNU General Public License cover the whole
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combination.
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent
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modules, and to copy and distribute the resulting executable under
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terms of your choice, provided that you also meet, for each linked
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independent module, the terms and conditions of the license of that
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module. An independent module is a module which is not derived from
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or based on this library. If you modify this library, you may extend
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this exception to your version of the library, but you are not
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obligated to do so. If you do not wish to do so, delete this
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exception statement from your version. */
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package java.lang.reflect;
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/**
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* InvocationTargetException is sort of a way to "wrap" whatever exception
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* comes up when a method or constructor is called via Reflection. As of
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* JDK 1.4, it was retrofitted to match the exception chaining of all other
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* exceptions, but <code>getTargetException()</code> still works.
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*
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* @author John Keiser
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* @author Tom Tromey (tromey@cygnus.com)
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* @author Eric Blake (ebb9@email.byu.edu)
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* @see Method#invoke(Object,Object[])
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* @see Constructor#newInstance(Object[])
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* @since 1.1
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* @status updated to 1.4
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*/
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public class InvocationTargetException extends Exception
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{
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/**
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* Compatible with JDK 1.1+.
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*/
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private static final long serialVersionUID = 4085088731926701167L;
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/**
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* The chained exception. This field is only around for serial compatibility.
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*
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* @serial the chained exception
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*/
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private final Throwable target;
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/**
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* Construct an exception with null as the cause. The cause is initialized
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* to null.
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*/
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protected InvocationTargetException()
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{
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this(null, null);
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}
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/**
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* Create an <code>InvocationTargetException</code> using another
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* exception.
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*
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* @param targetException the exception to wrap
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*/
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public InvocationTargetException(Throwable targetException)
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{
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this(targetException, null);
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}
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/**
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* Create an <code>InvocationTargetException</code> using another
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* exception and an error message.
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*
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* @param targetException the exception to wrap
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* @param err an extra reason for the exception-throwing
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*/
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public InvocationTargetException(Throwable targetException, String err)
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{
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super(err, targetException);
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target = targetException;
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}
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/**
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* Get the wrapped (targeted) exception.
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*
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* @return the targeted exception
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* @see #getCause()
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*/
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public Throwable getTargetException()
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{
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return target;
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}
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/**
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* Returns the cause of this exception (which may be null).
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*
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* @return the cause
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* @since 1.4
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*/
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public Throwable getCause()
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{
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return target;
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}
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}
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