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This bug was originally marked as duplicate of bug 178160, that is already resolved. This bug is still valid, so this seems to be another bug, but it might be related. Build: NetBeans IDE 7.3 (Build 201306052037) VM: Java HotSpot(TM) 64-Bit Server VM, 23.7-b01, Java(TM) SE Runtime Environment, 1.7.0_17-b02 OS: Windows 8 User Comments: GUEST: clicking around with my mouse in edit area, clicked <enter> and netbeams froze Maximum slowness yet reported was 28220 ms, average is 28220
Created attachment 147506 [details] nps snapshot
7.3 is two releases and two years ago and there were no similar reports since then. Closing for now, but feel free to reopen in case you run into the problem with an actual build/release.