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This bug was originally marked as duplicate of bug 166408, that is already resolved. This bug is still valid, so this seems to be another bug, but it might be related. Build: NetBeans IDE 8.0 RC1 (Build 201402242200) VM: Java HotSpot(TM) 64-Bit Server VM, 24.51-b03, Java(TM) SE Runtime Environment, 1.7.0_51-b13 OS: Windows 7 User Comments: GUEST: . Maximum slowness yet reported was 24607 ms, average is 24607
Created attachment 146017 [details] nps snapshot
The IDE is waiting for native I/O operation to finish. There's no practical way to move this out of the EDT as it would lead to editor tabs being rearranged when the project owner of a document is actually calculated.