This bug was originally marked as duplicate of bug 181584, that is already resolved. This bug is still valid, so this seems to be another bug, but it might be related.
Build: NetBeans IDE 7.2 Beta (Build 201205031832)
VM: Java HotSpot(TM) Client VM, 11.3-b02, Java(TM) SE Runtime Environment, 1.6.0_13-b03
OS: Windows XP
GUEST: Was using autocomplete feautre.
As soon as the autocomplete popup appeared i started typing, and it froze.
Maximum slowness yet reported was 33500 ms, average is 33500
Created attachment 121643 [details]
Strange. Single call to java.awt.Component.setVisible() seems to be extremely slow. Closing as wontfix on NB side.