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This bug was originally marked as duplicate of bug 253645, 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 201607070002) VM: Java HotSpot(TM) 64-Bit Server VM, 25.66-b17, Java(TM) SE Runtime Environment, 1.8.0_66-b17 OS: Windows 7 User Comments: IrianR: started up tIDE after a full system reboot. Maximum slowness yet reported was 26247 ms, average is 26247
Created attachment 160316 [details] nps snapshot
in AWT o.n.m.j2ee.ddloaders.web.DDDataObject.init() -> .refreshSourceFolders() -> which triggers the time demanding loading of a maven project please evaluate if it is not enough to compute the srcRoots only when they are needed ( only in .operationDelete() ) and not already during DDDataObject creation