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This bug was originally marked as duplicate of bug 233800, that is already resolved. This bug is still valid, so this seems to be another bug, but it might be related. Build: NetBeans IDE 8.0.1 (Build 201408251540) VM: Java HotSpot(TM) 64-Bit Server VM, 23.6-b04, Java(TM) SE Runtime Environment, 1.7.0_11-b21 OS: Windows 7 User Comments: kkidman: I was executing a program and things just stopped for a few seconds. This has happened several times. Maximum slowness yet reported was 46066 ms, average is 46066
Created attachment 149547 [details] nps snapshot
The single file open took 36sec. Seems as a heavy IO load. If more reports come we can move the ProjectRunnerImpl.execute() out of EDT but it's non trivial change.