This Bugzilla instance is a read-only archive of historic NetBeans bug reports. To report a bug in NetBeans please follow the project's instructions for reporting issues.
It happemmed during IDE startup, JDK 1.4.2_05, my today fresh build 24 Aug. I will attach thread dump.
Created attachment 17087 [details] Thread dump
Deadlock in Lookup.
*** This issue has been marked as a duplicate of 47588 ***