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This bug was originally marked as duplicate of bug 162967, that is already resolved. This bug is still valid, so this seems to be another bug, but it might be related. Build: NetBeans IDE 7.4 (Build 201311011758) VM: Java HotSpot(TM) 64-Bit Server VM, 23.21-b01, Java(TM) SE Runtime Environment, 1.7.0_21-b11 OS: Windows 7 User Comments: GUEST: Estaba arrastrando un JMenu a un JMenu llamado Editar, para formar un submen
Created attachment 148701 [details] stacktrace