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Build: NetBeans IDE Dev (Build 201002152000) VM: Java HotSpot(TM) 64-Bit Server VM, 14.2-b01, Java(TM) SE Runtime Environment, 1.6.0_16-b01 OS: Windows 7 Maximum slowness yet reported was 20015 ms, average is 20015
Created attachment 94251 [details] nps snapshot
This is issue of JavaScript Debugger module which is not maintained anymore.