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Build: NetBeans IDE 6.0 Beta 2 (Build 200710212201) VM: Java HotSpot(TM) Client VM, 1.6.0-b105 OS: Linux, 2.6.20-16-generic, i386 User Comments: Trying to add an OC4J Server instance
Created attachment 51572 [details] stacktrace
This is really suspicious. How did you install oc4j plugin? Autoupdate or download? Was it the version designed to run with 6.0?
With the current plugin version everything works as expected. Please reopen if you met reproducible scenario.