This bug was originally marked as duplicate of bug 182819, that is already resolved. This bug is still valid, so this seems to be another bug, but it might be related.
Build: NetBeans IDE 7.3.1 (Build 201306052037)
VM: Java HotSpot(TM) 64-Bit Server VM, 23.21-b01, Java(TM) SE Runtime Environment, 1.7.0_21-b11
OS: Windows 7
GUEST: Just starting up Netbeans. Eventually came up with an error saying that my SVN working copy was too new.
Maximum slowness yet reported was 31186 ms, average is 31186
Created attachment 137394 [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