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This bug was originally marked as duplicate of bug 171707, that is already resolved. This bug is still valid, so this seems to be another bug, but it might be related. Build: NetBeans IDE Dev (Build 201204260400) VM: Java HotSpot(TM) 64-Bit Server VM, 20.6-b01-415, Java(TM) SE Runtime Environment, 1.6.0_31-b04-415-11M3635 OS: Mac OS X User Comments: mrpc: Nothing... I was on chrome testing my app. Maximum slowness yet reported was 3195 ms, average is 3195
Created attachment 118862 [details] nps snapshot
The slowness is in native method apple.awt.CRenderer.doRect