Build: NetBeans IDE 6.9 Beta (Build 201004200117)
VM: Java HotSpot(TM) 64-Bit Server VM, 14.3-b01-101, Java(TM) SE Runtime Environment, 1.6.0_17-b04-248-10M3025
OS: Mac OS X
Maximum slowness yet reported was 27089 ms, average is 15322
Created attachment 99666 [details]
Closing an editor TopComponent can sometimes be slow.
This is very rare event when someone is closing editor(s) and at the same time the machine's CPU is occupied by something. Marking as wontfix.