id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
8209	External jar for plugins. Log4j in two plugins cause crash.	kendzi	Don-vip	"I just updated plug-in ImportImagePlugin and my plugin Kendzi3d stop working. After short analysis I find out that ImportImagePlugin add log4j jar and now both plug-ins try to load this library. When my plug-in starts and try to use log4j I get: 

{{{
Caused by: java.lang.LinkageError: loader constraint violation: loader (instance of sun/misc/Launcher$AppClassLoader) previously initiated loading for a different type with name ""org/apache/log4j/Category""
        at java.lang.ClassLoader.defineClass1(Native Method)
        at java.lang.ClassLoader.defineClass(Unknown Source)
}}}

Error stop occurring after I removed plug-in ImportImagePlugin. Any idea how to share same jar in different plug-ins?"	defect	closed	major		Core		fixed	ImportImagePlugin, kendzi3d, log4j