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This bug was originally marked as duplicate of bug 247965, that is already resolved. This bug is still valid, so this seems to be another bug, but it might be related. Build: NetBeans IDE 8.1 (Build 201510222201) VM: Java HotSpot(TM) 64-Bit Server VM, 25.60-b23, Java(TM) SE Runtime Environment, 1.8.0_60-b27 OS: Windows 8.1 User Comments: GUEST: Changing between two tabs in files stored locally in the same project. Maximum slowness yet reported was 21018 ms, average is 21018
Created attachment 157313 [details] nps snapshot