Hi all. I have next problem:i create two eclipse plugin and attach to either of them one (thesame) external jar file (i want use it like external library). If iinvoke some method from this jar - it's work perfect. However, if itry transfer any class instance (created in jar) from plugin A toplugin B i get the following error...       java.lang.LinkageError: Class com/xprom/kernel_proxy/KernelProxy violates loader constraintsHow i understand - this error to result work two another classloaderswith my plugins, because they use different classpath but i don'tunderstand how it fixed!Somebody confronted with similar problem?Thanks in advance.