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ActivationException (Java Platform SE 6) - JDK 5 Documentation v6.0, Java 2 SDK 英文文档


Java™ Platform
Standard Ed. 6

java.rmi.activation
Class ActivationException

java.lang.Object
  extended by java.lang.Throwable
      extended by java.lang.Exception
          extended by java.rmi.activation.ActivationException
All Implemented Interfaces:
Serializable
Direct Known Subclasses:
UnknownGroupException, UnknownObjectException

public class ActivationException
extends Exception

General exception used by the activation interfaces.

As of release 1.4, this exception has been retrofitted to conform to the general purpose exception-chaining mechanism. The "detail exception" that may be provided at construction time and accessed via the public detail field is now known as the cause, and may be accessed via the Throwable.getCause() method, as well as the aforementioned "legacy field."

Invoking the method Throwable.initCause(Throwable) on an instance of ActivationException always throws IllegalStateException.

Since:
1.2
See Also:
Serialized Form

Field Summary
 Throwable detail
          The cause of the activation exception.
 
Constructor Summary
ActivationException()
          Constructs an ActivationException.
ActivationException(String s)
          Constructs an ActivationException with the specified detail message.
ActivationException(String s, Throwable cause)
          Constructs an ActivationException with the specified detail message and cause.
 
Method Summary
 Throwable getCause()
          Returns the cause of this exception.
 String getMessage()
          Returns the detail message, including the message from the cause, if any, of this exception.
 
Methods inherited from class java.lang.Throwable
fillInStackTrace, getLocalizedMessage, getStackTrace, initCause, printStackTrace, printStackTrace, printStackTrace, setStackTrace, toString
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Field Detail

detail

public Throwable detail
The cause of the activation exception.

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

Constructor Detail

ActivationException

public ActivationException()
Constructs an ActivationException.


ActivationException

public ActivationException(String s)
Constructs an ActivationException with the specified detail message.

Parameters:
s - the detail message

ActivationException

public ActivationException(String s,
                           Throwable cause)
Constructs an ActivationException with the specified detail message and cause. This constructor sets the detail field to the specified Throwable.

Parameters:
s - the detail message
cause - the cause
Method Detail

getMessage

public String getMessage()
Returns the detail message, including the message from the cause, if any, of this exception.

Overrides:
getMessage in class Throwable
Returns:
the detail message

getCause

public Throwable getCause()
Returns the cause of this exception. This method returns the value of the detail field.

Overrides:
getCause in class Throwable
Returns:
the cause, which may be null.
Since:
1.4

Java™ Platform
Standard Ed. 6

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

Copyright 2006 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms. Also see the documentation redistribution policy.