This bug was originally marked as duplicate of bug 183962, that is already resolved. This bug is still valid, so this seems to be another bug, but it might be related.
Build: NetBeans IDE 7.4 (Build 201310111528)
VM: Java HotSpot(TM) Client VM, 24.45-b08, Java(TM) SE Runtime Environment, 1.7.0_45-b18
OS: Windows 7
GUEST: was just programming, no idea
Maximum slowness yet reported was 138429 ms, average is 138429
Created attachment 142460 [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