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Hi. Not sure these steps will reproduce the problem, but here is what I did: 1. Made new commit via 'Git Staging' view 2. Made hard reset to another local branch in 'Git Repositories' view with 'Staging' view still opened EGit 1.1.0.201109151100-r -- Error Details -- Date: Thu Sep 22 20:46:11 MSD 2011 Message: An internal error occurred during: "Staging view reindexing repository ru.bpc.alfa.p2p". Severity: Error Product: Eclipse Platform 3.7.0.v201106131736 (org.eclipse.platform.ide) Plugin: org.eclipse.core.jobs Session Data: eclipse.buildId=I20110613-1736 java.version=1.6.0_27 java.vendor=Sun Microsystems Inc. BootLoader constants: OS=win32, ARCH=x86, WS=win32, NL=en_US Command-line arguments: -os win32 -ws win32 -arch x86 Exception Stack Trace: java.lang.NullPointerException at org.eclipse.egit.core.ContainerTreeIterator.<init>(ContainerTreeIterator.java:124) at org.eclipse.egit.core.ContainerTreeIterator.createSubtreeIterator(ContainerTreeIterator.java:132) at org.eclipse.jgit.treewalk.AbstractTreeIterator.createSubtreeIterator(AbstractTreeIterator.java:527) at org.eclipse.jgit.treewalk.TreeWalk.enterSubtree(TreeWalk.java:907) at org.eclipse.jgit.treewalk.TreeWalk.next(TreeWalk.java:566) at org.eclipse.jgit.lib.IndexDiff.diff(IndexDiff.java:281) at org.eclipse.egit.ui.internal.staging.StagingView.doReload(StagingView.java:1085) at org.eclipse.egit.ui.internal.staging.StagingView.access$24(StagingView.java:1074) at org.eclipse.egit.ui.internal.staging.StagingView$24.run(StagingView.java:1014) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)
I failed to reproduce this following your steps
Can we avoid such problems at all? I assume the IndexDiff calculation was running while the reset was performed. Since git allows reading all the time such things can happen in reading threads, right?
Just hit the same problem again, this time I was frequently switching between branches, creating, removing them etc. In contrast with the original problem this one preserves after eclipse restart. java.lang.NullPointerException at org.eclipse.egit.core.ContainerTreeIterator.<init>(ContainerTreeIterator.java:124) at org.eclipse.egit.core.ContainerTreeIterator.createSubtreeIterator(ContainerTreeIterator.java:132) at org.eclipse.jgit.treewalk.AbstractTreeIterator.createSubtreeIterator(AbstractTreeIterator.java:527) at org.eclipse.jgit.treewalk.TreeWalk.enterSubtree(TreeWalk.java:907) at org.eclipse.jgit.treewalk.TreeWalk.next(TreeWalk.java:566) at org.eclipse.jgit.lib.IndexDiff.diff(IndexDiff.java:284) at org.eclipse.egit.ui.internal.staging.StagingView.doReload(StagingView.java:1085) at org.eclipse.egit.ui.internal.staging.StagingView.access$24(StagingView.java:1074) at org.eclipse.egit.ui.internal.staging.StagingView$24.run(StagingView.java:1014) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)
Does refreshing all projects help?
related(In reply to comment #4) > Does refreshing all projects help? related bug: https://bugs.eclipse.org/bugs/show_bug.cgi?id=377644
Implementation of ContainerTteeIterator has changed in the mean time. The repository is no longer queried. Does the problem also occur with the latest EGit from the nightly build?
I was running into the same problem and upgrading to the latest Egit nightly build fixed it.
