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How instanciate a class in the JVM ??

3 replies on 1 page. Most recent reply: Jun 30, 2003 4:26 PM by zenykx

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guillaume

Posts: 21
Nickname: salulezami
Registered: May, 2003

How instanciate a class in the JVM ??

Posted: Jun 24, 2003 5:05 AM

I have a class with its instances in the JVM, and I load a new class. I would like to instanciate the new class with the instances of the old, and unload the old class. Is it possible ??
How could I do ??
Thanks

zenykx

Posts: 69
Nickname: zenykx
Registered: May, 2003

Re: How instanciate a class in the JVM ??

Posted: Jun 28, 2003 5:08 PM

You want to replace a class version with another while running an application ?

guillaume

Posts: 21
Nickname: salulezami
Registered: May, 2003

Re: How instanciate a class in the JVM ??

Posted: Jun 30, 2003 3:06 AM

Exactly !!
Is it possible???

zenykx

Posts: 69
Nickname: zenykx
Registered: May, 2003

Re: How instanciate a class in the JVM ??

Posted: Jun 30, 2003 4:26 PM

I think you can load firstly load your class with a specific ClassLoader. Afterward, you must "destroy" this ClassLoader and try to load the new version of class with another ClassLoader. You loose all the instances, but you got your new version. I dont know for sure if it really works.

You can try to check:
http://www.javaworld.com/javaworld/javaqa/2003-03/01-qa-0314-forname.html

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