/* * @(#)InvocationTargetException.java 1.19 04/02/19 * * Copyright 2004 Sun Microsystems, Inc. All rights reserved. * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms. */ package java.lang.reflect; /** * InvocationTargetException is a checked exception that wraps * an exception thrown by an invoked method or constructor. * *
As of release 1.4, this exception has been retrofitted to conform to
* the general purpose exception-chaining mechanism. The "target exception"
* that is provided at construction time and accessed via the
* {@link #getTargetException()} method is now known as the cause,
* and may be accessed via the {@link Throwable#getCause()} method,
* as well as the aforementioned "legacy method."
*
* @see Method
* @see Constructor
*/
public class InvocationTargetException extends Exception {
/**
* Use serialVersionUID from JDK 1.1.X for interoperability
*/
private static final long serialVersionUID = 4085088731926701167L;
/**
* This field holds the target if the
* InvocationTargetException(Throwable target) constructor was
* used to instantiate the object
*
* @serial
*
*/
private Throwable target;
/**
* Constructs an InvocationTargetException
with
* null
as the target exception.
*/
protected InvocationTargetException() {
super((Throwable)null); // Disallow initCause
}
/**
* Constructs a InvocationTargetException with a target exception.
*
* @param target the target exception
*/
public InvocationTargetException(Throwable target) {
super((Throwable)null); // Disallow initCause
this.target = target;
}
/**
* Constructs a InvocationTargetException with a target exception
* and a detail message.
*
* @param target the target exception
* @param s the detail message
*/
public InvocationTargetException(Throwable target, String s) {
super(s, null); // Disallow initCause
this.target = target;
}
/**
* Get the thrown target exception.
*
*
This method predates the general-purpose exception chaining facility. * The {@link Throwable#getCause()} method is now the preferred means of * obtaining this information. * * @return the thrown target exception (cause of this exception). */ public Throwable getTargetException() { return target; } /** * Returns the cause of this exception (the thrown target exception, * which may be null). * * @return the cause of this exception. * @since 1.4 */ public Throwable getCause() { return target; } }