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1. How can I create an instance of type dynamically in Java
In my Java application I have method public <T extends Transaction> boolean appendTransaction(T transaction) { ... } and inside of this method I need to create an instance of object T which extends Transaction Is it correct to do it in this way T newTransaction = (T) transaction.getClass().newInstance();
2. Threw an unexpected exception: java.lang.reflect.InvocationTargetException
I am working on GWT-Hibernate application, my application works perfectly on integrated GWT environment and even on external server tomcat. I need to deploy my application on JBoss V 6.0. I am able to successfully deploy my application on JBoss and able to run until on point of execution. At particular button click application threw an unexpected exception: java.lang.reflect.InvocationTargetExc...
3. Renaming openconnection() or cutting it up?
Is it possible to rename the openconnection()? Orginal: URL url = new URL("http://google.co.in"); URLConnection connection = url.**openConnection**(); After: URL url = new URL("http://google.co.in"); URLConnection connection = url.**connect**(); I'm just wondering if it is possible and how I would go about doing it. Is there an alternative? I was thinking of making a class in order to do...
4. Trouble calling an applet method from page
I know it's not optimal, but I have to work with it, a page making calls to the applet. My problem is, when I do so, I recieve a rather cryptic error message: "uncaught exception: Error calling method on NPObject! [plugin exception: java.lang.reflect.InvocationTargetException]." Can anyone decode this? Even multiple possibilities would be better than the junk I came up with. The basic call... 
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   * Copyright 1996-2004 Sun Microsystems, Inc.  All Rights Reserved.
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   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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   * This code is free software; you can redistribute it and/or modify it
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   * under the terms of the GNU General Public License version 2 only, as
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   * by Sun in the LICENSE file that accompanied this code.
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  * accompanied this code).
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 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 getTargetException() method is now known as the cause, and may be accessed via the java.lang.Throwable.getCause() method, as well as the aforementioned "legacy method."

See also:
Method
Constructor
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 public class InvocationTargetException extends Exception {
    
Use serialVersionUID from JDK 1.1.X for interoperability 
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     private static final long serialVersionUID = 4085088731926701167L;

     
This field holds the target if the InvocationTargetException(Throwable target) constructor was used to instantiate the object

Serial:
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     private Throwable target;

    
Constructs an InvocationTargetException with null as the target exception. 
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     protected InvocationTargetException() {
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         super((Throwable)null);  // Disallow initCause
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     }

    
Constructs a InvocationTargetException with a target exception.

Parameters:
target the target exception
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     public InvocationTargetException(Throwable target) {
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         super((Throwable)null);  // Disallow initCause
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         this. = target;
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     }

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

Parameters:
target the target exception
s the detail message
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     public InvocationTargetException(Throwable target, String s) {
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         super(s, null);  // Disallow initCause
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         this. = target;
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     }

    
Get the thrown target exception.

This method predates the general-purpose exception chaining facility. The java.lang.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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     public Throwable getTargetException() {
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         return ;
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     }

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

Returns:
the cause of this exception.
Since:
1.4
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    public Throwable getCause() {
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        return ;
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    }
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