[kaffe] VMSecurityManager.getClassContext() fixlet

[Mark Wielaard]

Hi,

ResourceBundle doesn't work correctly anymore when getBundle() is called
from a user defined class loader Class. This is because
VMSecurityManager.getClassContext() doesn't obey its interface:
"Hint: you may need to pop off one or more frames: don't include
SecurityManager or VMSecurityManager.getClassContext in your result. " 

This patch fixes that:

2004-12-05  Mark Wielaard  <mark at klomp.org>

	* libraries/javalib/java/lang/ClassLoader.java
	(setSigners): Don't throw Exception.
	* libraries/javalib/java/lang/VMSecurityManager.java
	(getClassContext): Cleanup returned stack.

This isn't the most efficient way to handle this for ResourceBundle. We
should probably introduce a VMResourceBundle that gives kaffe the option
to do it the efficient way as Helmer once introduced. But this patch
also fixes other potential bugs in the use of the SecurityManager
getClassContext() method.

It also tries to sneak in the patch to make ClassLoader.setSigners() not
throw exceptions for anything that uses signed jar files (Casey his
patch is way better, but I want to get at least something in to make
kaffe CVS usable again.)

Cheers,

Mark
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