This issue was reported manually by misterm.
It already has 1 duplicates
Build: NetBeans IDE Dev (Build 20130325-7e0418a4b137)
VM: Java HotSpot(TM) 64-Bit Server VM, 23.3-b01, Java(TM) SE Runtime Environment, 1.7.0_07-b11
OS: Windows 7
Maximum slowness yet reported was 5292 ms, average is 5292
Created attachment 133193 [details]
Most time is spent in method
(waiting for synchronized block).
Reassigning. Please evaluate, thank you.
Report from old NetBeans version. Due to code changes since it was reported likely not reproducible now. Feel free to reopen if happens in 8.0.2 or 8.1.