This bug was originally marked as duplicate of bug 240062, 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 Beta (Build 201401141042)
VM: Java HotSpot(TM) 64-Bit Server VM, 25.0-b59, Java(TM) SE Runtime Environment, 1.8.0-ea-b117
OS: Mac OS X
GUEST: Completed Code
Maximum slowness yet reported was 4580 ms, average is 4580
Created attachment 144038 [details]
This old bug may not be relevant anymore. If you can still reproduce it in 8.2 development builds please reopen this issue.
Thanks for your cooperation,
NetBeans IDE 8.2 Release Boss