getResourceBundle method declaration

Hi all,
 
I'm currently trying to translate some parts of the potlets's (bookmark portlet ) source code
 using getResourceBundle method.
 
I have seen that this method works well in the jahia portail's context.
But my page included a porlet wich the .jsp  files work in another context (located in another directory) in which, of course, this method doesn't work.
 
My probleme is that i don't find the getResourceBundle method (with 3 parameters ) declaration in the  Javadoc.
 
I find only methods with one or two parameters.
 
example getResourceBundle("user","user",jData)
 
 
Can you tell me where this method is defined ?
 
Thanks a lot in advance!
Fabrice

		
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