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Created attachment 106491 [details] Stack trace with the deadlock I've seen this in the GUIBuilder, but maybe this is under org.openide.util.Utilities.getBeanInfo(Utilities.java:426) I'm attaching a thread dump with the problem.
Created attachment 106492 [details] Stack trace with the deadlock (plain/text mime type) Reattaching issue with the correct mimetype.
The deadlock should appear only in u21 and u22 of JDK 6. *** This bug has been marked as a duplicate of bug 187697 ***