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InvocationTargetException (Java 2 Platform SE 5.0) - JDK 5 Documentation v1.5.0, Java 2 SDK 英文文档

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java.lang.reflect
Class InvocationTargetException

java.lang.Object
  java.lang.Throwable
      java.lang.Exception
          java.lang.reflect.InvocationTargetException

All Implemented Interfaces:

Serializable

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public class InvocationTargetException
extends Exception

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 getTargetException() method is now known as the cause, and may be accessed via the Throwable.getCause() method, as well as the aforementioned "legacy method."

See Also:

Method, Constructor, Serialized Form

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Constructor Summary
protected	InvocationTargetException()           Constructs an InvocationTargetException with null as the target exception.
	InvocationTargetException(Throwable target)           Constructs a InvocationTargetException with a target exception.
	InvocationTargetException(Throwable target, String s)           Constructs a InvocationTargetException with a target exception and a detail message.

 

Method Summary
Throwable	getCause()           Returns the cause of this exception (the thrown target exception, which may be null).
Throwable	getTargetException()           Get the thrown target exception.

 

Methods inherited from class java.lang.Throwable
fillInStackTrace, getLocalizedMessage, getMessage, getStackTrace, initCause, printStackTrace, printStackTrace, printStackTrace, setStackTrace, toString

 

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

 

Constructor Detail

InvocationTargetException

protected InvocationTargetException()

Constructs an InvocationTargetException with null as the target exception.

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InvocationTargetException

public InvocationTargetException(Throwable target)

Constructs a InvocationTargetException with a target exception.

Parameters:

target - the target exception

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InvocationTargetException

public InvocationTargetException(Throwable target,
                                 String s)

Constructs a InvocationTargetException with a target exception and a detail message.

Parameters:

target - the target exception

s - the detail message

Method Detail

getTargetException

public Throwable getTargetException()

Get the thrown target exception.

This method predates the general-purpose exception chaining facility. The Throwable.getCause() method is now the preferred means of obtaining this information.

Returns:

the thrown target exception (cause of this exception).

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getCause

public Throwable getCause()

Returns the cause of this exception (the thrown target exception, which may be null).

Overrides:

getCause in class Throwable

Returns:

the cause of this exception.

Since:

1.4

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For further API reference and developer documentation, see Java 2 SDK SE Developer Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.

Copyright 2004 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms. Also see the documentation redistribution policy.