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This bug was originally marked as duplicate of bug 229487, 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 20170312-16f7e01143a9) VM: Java HotSpot(TM) 64-Bit Server VM, 25.121-b13, Java(TM) SE Runtime Environment, 1.8.0_121-b13 OS: Linux User Comments: vkvashin: I don't understand the exact moment exception appeared. A couple of minutes ago I dealed with a file that is a symlink. I did not work with anything remote. Stacktrace: java.lang.NullPointerException at org.netbeans.modules.versioning.core.api.VCSFileProxy.createFileProxy(VCSFileProxy.java:116) at org.netbeans.modules.versioning.spi.VersioningSupport.isExcluded(VersioningSupport.java:147) at org.netbeans.modules.mercurial.Mercurial.getKnownParent(Mercurial.java:612) at org.netbeans.modules.mercurial.Mercurial.getTopmostManagedAncestor(Mercurial.java:543) at org.netbeans.modules.mercurial.Mercurial$1.getTopmostManagedAncestor(Mercurial.java:173) at org.netbeans.modules.versioning.util.RootsToFile.getRepositoryRoot(RootsToFile.java:127)
Created attachment 163871 [details] stacktrace