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[jgit-dev] MissingObjectException in History and when Branching

Hey!

i have a strange behaviour with the current jgit/egit duo. Sometimes (in my EGit development workspace), when just doing some branching and merging, i get MissingObjectExceptions (even after a clean restart of eclipse they appear rather quick). i have attached a log export, maybe somebody can have a look at it?

what i'm doing: i have multiple changes for jgit and egit (you all know them from gerrit :D), which i rebase and then merge into a integration branch to distribute a build of jgit/egit in-house. while doing so, at random points these exceptions appear. i can continue as long as it's "only" the history view that throws, but shortly after history breaks down, i cannot even switch branches anymore... any ideas?

Regards,
Markus
eclipse.buildId=M20110909-1335
java.version=1.6.0_24
java.vendor=Sun Microsystems Inc.
BootLoader constants: OS=linux, ARCH=x86, WS=gtk, NL=en_US
Framework arguments:  -eclipse.password /home/mduft/.eclipse/master-pw -product org.eclipse.epp.package.rcp.product
Command-line arguments:  -os linux -ws gtk -arch x86 -eclipse.password /home/mduft/.eclipse/master-pw -product org.eclipse.epp.package.rcp.product

!ENTRY org.eclipse.egit.ui 4 0 2012-03-15 10:56:07.148
!MESSAGE Cannot compute Git history.
!STACK 0
org.eclipse.jgit.errors.MissingObjectException: Missing commit 9484c79ce5dd6fc90741baab952e6296a1fdcbba
	at org.eclipse.jgit.storage.file.WindowCursor.open(WindowCursor.java:126)
	at org.eclipse.jgit.revwalk.RevWalk.getCachedBytes(RevWalk.java:855)
	at org.eclipse.jgit.revwalk.RevCommit.parseHeaders(RevCommit.java:136)
	at org.eclipse.jgit.revwalk.PendingGenerator.next(PendingGenerator.java:148)
	at org.eclipse.jgit.revwalk.TopoSortGenerator.<init>(TopoSortGenerator.java:78)
	at org.eclipse.jgit.revwalk.StartGenerator.next(StartGenerator.java:163)
	at org.eclipse.jgit.revwalk.RevWalk.next(RevWalk.java:420)
	at org.eclipse.jgit.revplot.PlotWalk.next(PlotWalk.java:132)
	at org.eclipse.jgit.revwalk.RevCommitList.fillTo(RevCommitList.java:305)
	at org.eclipse.egit.ui.internal.history.GenerateHistoryJob.run(GenerateHistoryJob.java:68)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)

!ENTRY org.eclipse.egit.ui 4 0 2012-03-15 10:56:07.168
!MESSAGE Cannot compute Git history.
!STACK 0
org.eclipse.jgit.errors.MissingObjectException: Missing commit 7f19071a528ce99ba941fc1e634a119bcee14ffe
	at org.eclipse.jgit.storage.file.WindowCursor.open(WindowCursor.java:126)
	at org.eclipse.jgit.revwalk.RevWalk.getCachedBytes(RevWalk.java:855)
	at org.eclipse.jgit.revwalk.RevCommit.parseHeaders(RevCommit.java:136)
	at org.eclipse.jgit.revwalk.PendingGenerator.next(PendingGenerator.java:148)
	at org.eclipse.jgit.revwalk.TopoSortGenerator.<init>(TopoSortGenerator.java:78)
	at org.eclipse.jgit.revwalk.StartGenerator.next(StartGenerator.java:163)
	at org.eclipse.jgit.revwalk.RevWalk.next(RevWalk.java:420)
	at org.eclipse.jgit.revplot.PlotWalk.next(PlotWalk.java:132)
	at org.eclipse.jgit.revwalk.RevCommitList.fillTo(RevCommitList.java:305)
	at org.eclipse.egit.ui.internal.history.GenerateHistoryJob.run(GenerateHistoryJob.java:68)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)

!ENTRY org.eclipse.egit.ui 4 0 2012-03-15 10:56:07.168
!MESSAGE Cannot compute Git history.
!STACK 0
org.eclipse.jgit.errors.MissingObjectException: Missing commit 7f19071a528ce99ba941fc1e634a119bcee14ffe
	at org.eclipse.jgit.storage.file.WindowCursor.open(WindowCursor.java:126)
	at org.eclipse.jgit.revwalk.RevWalk.getCachedBytes(RevWalk.java:855)
	at org.eclipse.jgit.revwalk.RevCommit.parseHeaders(RevCommit.java:136)
	at org.eclipse.jgit.revwalk.PendingGenerator.next(PendingGenerator.java:148)
	at org.eclipse.jgit.revwalk.TopoSortGenerator.<init>(TopoSortGenerator.java:78)
	at org.eclipse.jgit.revwalk.StartGenerator.next(StartGenerator.java:163)
	at org.eclipse.jgit.revwalk.RevWalk.next(RevWalk.java:420)
	at org.eclipse.jgit.revplot.PlotWalk.next(PlotWalk.java:132)
	at org.eclipse.jgit.revwalk.RevCommitList.fillTo(RevCommitList.java:305)
	at org.eclipse.egit.ui.internal.history.GenerateHistoryJob.run(GenerateHistoryJob.java:68)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)

!ENTRY org.eclipse.egit.ui 4 0 2012-03-15 10:56:15.134
!MESSAGE Cannot compute Git history.
!STACK 0
org.eclipse.jgit.errors.MissingObjectException: Missing commit 7f19071a528ce99ba941fc1e634a119bcee14ffe
	at org.eclipse.jgit.storage.file.WindowCursor.open(WindowCursor.java:126)
	at org.eclipse.jgit.revwalk.RevWalk.getCachedBytes(RevWalk.java:855)
	at org.eclipse.jgit.revwalk.RevCommit.parseHeaders(RevCommit.java:136)
	at org.eclipse.jgit.revwalk.PendingGenerator.next(PendingGenerator.java:148)
	at org.eclipse.jgit.revwalk.TopoSortGenerator.<init>(TopoSortGenerator.java:78)
	at org.eclipse.jgit.revwalk.StartGenerator.next(StartGenerator.java:163)
	at org.eclipse.jgit.revwalk.RevWalk.next(RevWalk.java:420)
	at org.eclipse.jgit.revplot.PlotWalk.next(PlotWalk.java:132)
	at org.eclipse.jgit.revwalk.RevCommitList.fillTo(RevCommitList.java:305)
	at org.eclipse.egit.ui.internal.history.GenerateHistoryJob.run(GenerateHistoryJob.java:68)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)

!ENTRY org.eclipse.egit.ui 4 0 2012-03-15 10:56:20.604
!MESSAGE Cannot compute Git history.
!STACK 0
org.eclipse.jgit.errors.MissingObjectException: Missing commit 6859aaf7b816d065ae28cf614dfb369d51b9edaa
	at org.eclipse.jgit.storage.file.WindowCursor.open(WindowCursor.java:126)
	at org.eclipse.jgit.revwalk.RevWalk.getCachedBytes(RevWalk.java:855)
	at org.eclipse.jgit.revwalk.RevCommit.parseHeaders(RevCommit.java:136)
	at org.eclipse.jgit.revwalk.PendingGenerator.next(PendingGenerator.java:148)
	at org.eclipse.jgit.revwalk.TopoSortGenerator.<init>(TopoSortGenerator.java:78)
	at org.eclipse.jgit.revwalk.StartGenerator.next(StartGenerator.java:163)
	at org.eclipse.jgit.revwalk.RevWalk.next(RevWalk.java:420)
	at org.eclipse.jgit.revplot.PlotWalk.next(PlotWalk.java:132)
	at org.eclipse.jgit.revwalk.RevCommitList.fillTo(RevCommitList.java:305)
	at org.eclipse.egit.ui.internal.history.GenerateHistoryJob.run(GenerateHistoryJob.java:68)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)

!ENTRY org.eclipse.ui 4 0 2012-03-15 10:56:20.606
!MESSAGE Unhandled event loop exception
!STACK 0
org.eclipse.swt.SWTException: Failed to execute runnable (java.lang.IllegalStateException: Cannot set start points for repository egit)
	at org.eclipse.swt.SWT.error(SWT.java:4282)
	at org.eclipse.swt.SWT.error(SWT.java:4197)
	at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:138)
	at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:3563)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3212)
	at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2696)
	at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2660)
	at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2494)
	at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:674)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:667)
	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
	at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:123)
	at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:344)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:616)
	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:622)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:577)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1410)
	at org.eclipse.equinox.launcher.Main.main(Main.java:1386)
Caused by: java.lang.IllegalStateException: Cannot set start points for repository egit
	at org.eclipse.egit.ui.internal.history.GitHistoryPage.setWalkStartPoints(GitHistoryPage.java:1670)
	at org.eclipse.egit.ui.internal.history.GitHistoryPage.initAndStartRevWalk(GitHistoryPage.java:1484)
	at org.eclipse.egit.ui.internal.history.GitHistoryPage$8.run(GitHistoryPage.java:1038)
	at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
	at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:135)
	... 23 more
Caused by: org.eclipse.jgit.errors.MissingObjectException: Missing unknown 0111cdddeb5c1488786509e74928c01423a0c8d9
	at org.eclipse.jgit.storage.file.WindowCursor.open(WindowCursor.java:125)
	at org.eclipse.jgit.lib.ObjectReader.open(ObjectReader.java:228)
	at org.eclipse.jgit.revwalk.RevWalk.parseAny(RevWalk.java:811)
	at org.eclipse.egit.ui.internal.history.GitHistoryPage.markStartRef(GitHistoryPage.java:1831)
	at org.eclipse.egit.ui.internal.history.GitHistoryPage.markStartAllRefs(GitHistoryPage.java:1818)
	at org.eclipse.egit.ui.internal.history.GitHistoryPage.setWalkStartPoints(GitHistoryPage.java:1658)
	... 27 more

!ENTRY org.eclipse.ui 4 0 2012-03-15 10:56:20.644
!MESSAGE Unhandled event loop exception
!STACK 0
org.eclipse.swt.SWTException: Failed to execute runnable (java.lang.IllegalStateException: Cannot set start points for repository egit)
	at org.eclipse.swt.SWT.error(SWT.java:4282)
	at org.eclipse.swt.SWT.error(SWT.java:4197)
	at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:138)
	at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:3563)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3212)
	at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2696)
	at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2660)
	at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2494)
	at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:674)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:667)
	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
	at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:123)
	at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:344)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:616)
	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:622)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:577)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1410)
	at org.eclipse.equinox.launcher.Main.main(Main.java:1386)
Caused by: java.lang.IllegalStateException: Cannot set start points for repository egit
	at org.eclipse.egit.ui.internal.history.GitHistoryPage.setWalkStartPoints(GitHistoryPage.java:1670)
	at org.eclipse.egit.ui.internal.history.GitHistoryPage.initAndStartRevWalk(GitHistoryPage.java:1484)
	at org.eclipse.egit.ui.internal.history.GitHistoryPage$8.run(GitHistoryPage.java:1038)
	at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
	at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:135)
	... 23 more
Caused by: org.eclipse.jgit.errors.MissingObjectException: Missing unknown 0111cdddeb5c1488786509e74928c01423a0c8d9
	at org.eclipse.jgit.storage.file.WindowCursor.open(WindowCursor.java:125)
	at org.eclipse.jgit.lib.ObjectReader.open(ObjectReader.java:228)
	at org.eclipse.jgit.revwalk.RevWalk.parseAny(RevWalk.java:811)
	at org.eclipse.egit.ui.internal.history.GitHistoryPage.markStartRef(GitHistoryPage.java:1831)
	at org.eclipse.egit.ui.internal.history.GitHistoryPage.markStartAllRefs(GitHistoryPage.java:1818)
	at org.eclipse.egit.ui.internal.history.GitHistoryPage.setWalkStartPoints(GitHistoryPage.java:1658)
	... 27 more

!ENTRY org.eclipse.egit.ui 4 0 2012-03-15 10:56:27.927
!MESSAGE Cannot set start points for repository egit
!STACK 0
java.lang.IllegalStateException: Cannot set start points for repository egit
	at org.eclipse.egit.ui.internal.history.GitHistoryPage.setWalkStartPoints(GitHistoryPage.java:1670)
	at org.eclipse.egit.ui.internal.history.GitHistoryPage.initAndStartRevWalk(GitHistoryPage.java:1484)
	at org.eclipse.egit.ui.internal.history.GitHistoryPage.inputSet(GitHistoryPage.java:1174)
	at org.eclipse.team.ui.history.HistoryPage.setInput(HistoryPage.java:59)
	at org.eclipse.egit.ui.internal.history.GitHistoryPage.setInput(GitHistoryPage.java:1060)
	at org.eclipse.team.internal.ui.history.GenericHistoryView.showHistoryPageFor(GenericHistoryView.java:738)
	at org.eclipse.team.internal.ui.history.GenericHistoryView.setFocus(GenericHistoryView.java:604)
	at org.eclipse.ui.internal.PartPane.setFocus(PartPane.java:332)
	at org.eclipse.ui.internal.WorkbenchPage$3.run(WorkbenchPage.java:703)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
	at org.eclipse.core.runtime.Platform.run(Platform.java:888)
	at org.eclipse.ui.internal.WorkbenchPage.activatePart(WorkbenchPage.java:698)
	at org.eclipse.ui.internal.WorkbenchPage.setActivePart(WorkbenchPage.java:3632)
	at org.eclipse.ui.internal.WorkbenchPage.requestActivation(WorkbenchPage.java:3159)
	at org.eclipse.ui.internal.PartPane.requestActivation(PartPane.java:279)
	at org.eclipse.ui.internal.PartPane.setFocus(PartPane.java:325)
	at org.eclipse.ui.internal.PartStack.presentationSelectionChanged(PartStack.java:837)
	at org.eclipse.ui.internal.PartStack.access$1(PartStack.java:823)
	at org.eclipse.ui.internal.PartStack$1.selectPart(PartStack.java:137)
	at org.eclipse.ui.internal.presentations.util.TabbedStackPresentation$1.handleEvent(TabbedStackPresentation.java:133)
	at org.eclipse.ui.internal.presentations.util.AbstractTabFolder.fireEvent(AbstractTabFolder.java:269)
	at org.eclipse.ui.internal.presentations.util.AbstractTabFolder.fireEvent(AbstractTabFolder.java:278)
	at org.eclipse.ui.internal.presentations.defaultpresentation.DefaultTabFolder.access$1(DefaultTabFolder.java:1)
	at org.eclipse.ui.internal.presentations.defaultpresentation.DefaultTabFolder$2.handleEvent(DefaultTabFolder.java:88)
	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1258)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1282)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1267)
	at org.eclipse.swt.widgets.Widget.notifyListeners(Widget.java:1061)
	at org.eclipse.swt.custom.CTabFolder.setSelection(CTabFolder.java:2745)
	at org.eclipse.swt.custom.CTabFolder.onMouse(CTabFolder.java:1432)
	at org.eclipse.swt.custom.CTabFolder$1.handleEvent(CTabFolder.java:257)
	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1258)
	at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3588)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3209)
	at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2696)
	at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2660)
	at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2494)
	at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:674)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:667)
	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
	at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:123)
	at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:344)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:616)
	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:622)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:577)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1410)
	at org.eclipse.equinox.launcher.Main.main(Main.java:1386)
Caused by: org.eclipse.jgit.errors.MissingObjectException: Missing unknown 0111cdddeb5c1488786509e74928c01423a0c8d9
	at org.eclipse.jgit.storage.file.WindowCursor.open(WindowCursor.java:125)
	at org.eclipse.jgit.lib.ObjectReader.open(ObjectReader.java:228)
	at org.eclipse.jgit.revwalk.RevWalk.parseAny(RevWalk.java:811)
	at org.eclipse.egit.ui.internal.history.GitHistoryPage.markStartRef(GitHistoryPage.java:1831)
	at org.eclipse.egit.ui.internal.history.GitHistoryPage.markStartAllRefs(GitHistoryPage.java:1818)
	at org.eclipse.egit.ui.internal.history.GitHistoryPage.setWalkStartPoints(GitHistoryPage.java:1658)
	... 56 more

!ENTRY org.eclipse.egit.ui 4 0 2012-03-15 10:56:35.971
!MESSAGE Branch failed
!STACK 1
org.eclipse.core.runtime.CoreException: Missing tree 9fc683bb3628e61393be4f1e39e4a6e80d346340
	at org.eclipse.egit.core.op.BranchOperation$1.run(BranchOperation.java:106)
	at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:2344)
	at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:2326)
	at org.eclipse.egit.core.op.BranchOperation.execute(BranchOperation.java:131)
	at org.eclipse.egit.ui.internal.branch.BranchOperationUI$1.run(BranchOperationUI.java:199)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)
Caused by: org.eclipse.jgit.api.errors.JGitInternalException: Missing tree 9fc683bb3628e61393be4f1e39e4a6e80d346340
	at org.eclipse.jgit.api.CheckoutCommand.call(CheckoutCommand.java:227)
	at org.eclipse.egit.core.op.BranchOperation$1.run(BranchOperation.java:102)
	... 5 more
Caused by: org.eclipse.jgit.errors.MissingObjectException: Missing tree 9fc683bb3628e61393be4f1e39e4a6e80d346340
	at org.eclipse.jgit.storage.file.WindowCursor.open(WindowCursor.java:126)
	at org.eclipse.jgit.treewalk.CanonicalTreeParser.reset(CanonicalTreeParser.java:193)
	at org.eclipse.jgit.treewalk.CanonicalTreeParser.createSubtreeIterator0(CanonicalTreeParser.java:227)
	at org.eclipse.jgit.treewalk.CanonicalTreeParser.createSubtreeIterator(CanonicalTreeParser.java:205)
	at org.eclipse.jgit.treewalk.CanonicalTreeParser.createSubtreeIterator(CanonicalTreeParser.java:1)
	at org.eclipse.jgit.treewalk.TreeWalk.enterSubtree(TreeWalk.java:908)
	at org.eclipse.jgit.dircache.DirCacheCheckout.preScanTwoTrees(DirCacheCheckout.java:251)
	at org.eclipse.jgit.dircache.DirCacheCheckout.doCheckout(DirCacheCheckout.java:395)
	at org.eclipse.jgit.dircache.DirCacheCheckout.checkout(DirCacheCheckout.java:381)
	at org.eclipse.jgit.api.CheckoutCommand.call(CheckoutCommand.java:174)
	... 6 more
!SUBENTRY 1 org.eclipse.egit.core 4 0 2012-03-15 10:56:35.972
!MESSAGE Missing tree 9fc683bb3628e61393be4f1e39e4a6e80d346340
!STACK 0
org.eclipse.jgit.api.errors.JGitInternalException: Missing tree 9fc683bb3628e61393be4f1e39e4a6e80d346340
	at org.eclipse.jgit.api.CheckoutCommand.call(CheckoutCommand.java:227)
	at org.eclipse.egit.core.op.BranchOperation$1.run(BranchOperation.java:102)
	at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:2344)
	at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:2326)
	at org.eclipse.egit.core.op.BranchOperation.execute(BranchOperation.java:131)
	at org.eclipse.egit.ui.internal.branch.BranchOperationUI$1.run(BranchOperationUI.java:199)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)
Caused by: org.eclipse.jgit.errors.MissingObjectException: Missing tree 9fc683bb3628e61393be4f1e39e4a6e80d346340
	at org.eclipse.jgit.storage.file.WindowCursor.open(WindowCursor.java:126)
	at org.eclipse.jgit.treewalk.CanonicalTreeParser.reset(CanonicalTreeParser.java:193)
	at org.eclipse.jgit.treewalk.CanonicalTreeParser.createSubtreeIterator0(CanonicalTreeParser.java:227)
	at org.eclipse.jgit.treewalk.CanonicalTreeParser.createSubtreeIterator(CanonicalTreeParser.java:205)
	at org.eclipse.jgit.treewalk.CanonicalTreeParser.createSubtreeIterator(CanonicalTreeParser.java:1)
	at org.eclipse.jgit.treewalk.TreeWalk.enterSubtree(TreeWalk.java:908)
	at org.eclipse.jgit.dircache.DirCacheCheckout.preScanTwoTrees(DirCacheCheckout.java:251)
	at org.eclipse.jgit.dircache.DirCacheCheckout.doCheckout(DirCacheCheckout.java:395)
	at org.eclipse.jgit.dircache.DirCacheCheckout.checkout(DirCacheCheckout.java:381)
	at org.eclipse.jgit.api.CheckoutCommand.call(CheckoutCommand.java:174)
	... 6 more

!ENTRY org.eclipse.egit.ui 4 0 2012-03-15 10:56:43.851
!MESSAGE Branch failed
!STACK 1
org.eclipse.core.runtime.CoreException: Missing tree 9fc683bb3628e61393be4f1e39e4a6e80d346340
	at org.eclipse.egit.core.op.BranchOperation$1.run(BranchOperation.java:106)
	at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:2344)
	at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:2326)
	at org.eclipse.egit.core.op.BranchOperation.execute(BranchOperation.java:131)
	at org.eclipse.egit.ui.internal.branch.BranchOperationUI$1.run(BranchOperationUI.java:199)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)
Caused by: org.eclipse.jgit.api.errors.JGitInternalException: Missing tree 9fc683bb3628e61393be4f1e39e4a6e80d346340
	at org.eclipse.jgit.api.CheckoutCommand.call(CheckoutCommand.java:227)
	at org.eclipse.egit.core.op.BranchOperation$1.run(BranchOperation.java:102)
	... 5 more
Caused by: org.eclipse.jgit.errors.MissingObjectException: Missing tree 9fc683bb3628e61393be4f1e39e4a6e80d346340
	at org.eclipse.jgit.storage.file.WindowCursor.open(WindowCursor.java:126)
	at org.eclipse.jgit.treewalk.CanonicalTreeParser.reset(CanonicalTreeParser.java:193)
	at org.eclipse.jgit.treewalk.CanonicalTreeParser.createSubtreeIterator0(CanonicalTreeParser.java:227)
	at org.eclipse.jgit.treewalk.CanonicalTreeParser.createSubtreeIterator(CanonicalTreeParser.java:205)
	at org.eclipse.jgit.treewalk.CanonicalTreeParser.createSubtreeIterator(CanonicalTreeParser.java:1)
	at org.eclipse.jgit.treewalk.TreeWalk.enterSubtree(TreeWalk.java:908)
	at org.eclipse.jgit.dircache.DirCacheCheckout.preScanTwoTrees(DirCacheCheckout.java:251)
	at org.eclipse.jgit.dircache.DirCacheCheckout.doCheckout(DirCacheCheckout.java:395)
	at org.eclipse.jgit.dircache.DirCacheCheckout.checkout(DirCacheCheckout.java:381)
	at org.eclipse.jgit.api.CheckoutCommand.call(CheckoutCommand.java:174)
	... 6 more
!SUBENTRY 1 org.eclipse.egit.core 4 0 2012-03-15 10:56:43.851
!MESSAGE Missing tree 9fc683bb3628e61393be4f1e39e4a6e80d346340
!STACK 0
org.eclipse.jgit.api.errors.JGitInternalException: Missing tree 9fc683bb3628e61393be4f1e39e4a6e80d346340
	at org.eclipse.jgit.api.CheckoutCommand.call(CheckoutCommand.java:227)
	at org.eclipse.egit.core.op.BranchOperation$1.run(BranchOperation.java:102)
	at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:2344)
	at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:2326)
	at org.eclipse.egit.core.op.BranchOperation.execute(BranchOperation.java:131)
	at org.eclipse.egit.ui.internal.branch.BranchOperationUI$1.run(BranchOperationUI.java:199)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)
Caused by: org.eclipse.jgit.errors.MissingObjectException: Missing tree 9fc683bb3628e61393be4f1e39e4a6e80d346340
	at org.eclipse.jgit.storage.file.WindowCursor.open(WindowCursor.java:126)
	at org.eclipse.jgit.treewalk.CanonicalTreeParser.reset(CanonicalTreeParser.java:193)
	at org.eclipse.jgit.treewalk.CanonicalTreeParser.createSubtreeIterator0(CanonicalTreeParser.java:227)
	at org.eclipse.jgit.treewalk.CanonicalTreeParser.createSubtreeIterator(CanonicalTreeParser.java:205)
	at org.eclipse.jgit.treewalk.CanonicalTreeParser.createSubtreeIterator(CanonicalTreeParser.java:1)
	at org.eclipse.jgit.treewalk.TreeWalk.enterSubtree(TreeWalk.java:908)
	at org.eclipse.jgit.dircache.DirCacheCheckout.preScanTwoTrees(DirCacheCheckout.java:251)
	at org.eclipse.jgit.dircache.DirCacheCheckout.doCheckout(DirCacheCheckout.java:395)
	at org.eclipse.jgit.dircache.DirCacheCheckout.checkout(DirCacheCheckout.java:381)
	at org.eclipse.jgit.api.CheckoutCommand.call(CheckoutCommand.java:174)
	... 6 more

!ENTRY org.eclipse.egit.ui 4 0 2012-03-15 10:56:50.931
!MESSAGE Branch failed
!STACK 1
org.eclipse.core.runtime.CoreException: Missing tree 9fc683bb3628e61393be4f1e39e4a6e80d346340
	at org.eclipse.egit.core.op.BranchOperation$1.run(BranchOperation.java:106)
	at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:2344)
	at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:2326)
	at org.eclipse.egit.core.op.BranchOperation.execute(BranchOperation.java:131)
	at org.eclipse.egit.ui.internal.branch.BranchOperationUI$1.run(BranchOperationUI.java:199)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)
Caused by: org.eclipse.jgit.api.errors.JGitInternalException: Missing tree 9fc683bb3628e61393be4f1e39e4a6e80d346340
	at org.eclipse.jgit.api.CheckoutCommand.call(CheckoutCommand.java:227)
	at org.eclipse.egit.core.op.BranchOperation$1.run(BranchOperation.java:102)
	... 5 more
Caused by: org.eclipse.jgit.errors.MissingObjectException: Missing tree 9fc683bb3628e61393be4f1e39e4a6e80d346340
	at org.eclipse.jgit.storage.file.WindowCursor.open(WindowCursor.java:126)
	at org.eclipse.jgit.treewalk.CanonicalTreeParser.reset(CanonicalTreeParser.java:193)
	at org.eclipse.jgit.treewalk.CanonicalTreeParser.createSubtreeIterator0(CanonicalTreeParser.java:227)
	at org.eclipse.jgit.treewalk.CanonicalTreeParser.createSubtreeIterator(CanonicalTreeParser.java:205)
	at org.eclipse.jgit.treewalk.CanonicalTreeParser.createSubtreeIterator(CanonicalTreeParser.java:1)
	at org.eclipse.jgit.treewalk.TreeWalk.enterSubtree(TreeWalk.java:908)
	at org.eclipse.jgit.dircache.DirCacheCheckout.preScanTwoTrees(DirCacheCheckout.java:251)
	at org.eclipse.jgit.dircache.DirCacheCheckout.doCheckout(DirCacheCheckout.java:395)
	at org.eclipse.jgit.dircache.DirCacheCheckout.checkout(DirCacheCheckout.java:381)
	at org.eclipse.jgit.api.CheckoutCommand.call(CheckoutCommand.java:174)
	... 6 more
!SUBENTRY 1 org.eclipse.egit.core 4 0 2012-03-15 10:56:50.931
!MESSAGE Missing tree 9fc683bb3628e61393be4f1e39e4a6e80d346340
!STACK 0
org.eclipse.jgit.api.errors.JGitInternalException: Missing tree 9fc683bb3628e61393be4f1e39e4a6e80d346340
	at org.eclipse.jgit.api.CheckoutCommand.call(CheckoutCommand.java:227)
	at org.eclipse.egit.core.op.BranchOperation$1.run(BranchOperation.java:102)
	at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:2344)
	at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:2326)
	at org.eclipse.egit.core.op.BranchOperation.execute(BranchOperation.java:131)
	at org.eclipse.egit.ui.internal.branch.BranchOperationUI$1.run(BranchOperationUI.java:199)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)
Caused by: org.eclipse.jgit.errors.MissingObjectException: Missing tree 9fc683bb3628e61393be4f1e39e4a6e80d346340
	at org.eclipse.jgit.storage.file.WindowCursor.open(WindowCursor.java:126)
	at org.eclipse.jgit.treewalk.CanonicalTreeParser.reset(CanonicalTreeParser.java:193)
	at org.eclipse.jgit.treewalk.CanonicalTreeParser.createSubtreeIterator0(CanonicalTreeParser.java:227)
	at org.eclipse.jgit.treewalk.CanonicalTreeParser.createSubtreeIterator(CanonicalTreeParser.java:205)
	at org.eclipse.jgit.treewalk.CanonicalTreeParser.createSubtreeIterator(CanonicalTreeParser.java:1)
	at org.eclipse.jgit.treewalk.TreeWalk.enterSubtree(TreeWalk.java:908)
	at org.eclipse.jgit.dircache.DirCacheCheckout.preScanTwoTrees(DirCacheCheckout.java:251)
	at org.eclipse.jgit.dircache.DirCacheCheckout.doCheckout(DirCacheCheckout.java:395)
	at org.eclipse.jgit.dircache.DirCacheCheckout.checkout(DirCacheCheckout.java:381)
	at org.eclipse.jgit.api.CheckoutCommand.call(CheckoutCommand.java:174)
	... 6 more
!SESSION 2012-03-15 10:57:02.634 -----------------------------------------------
eclipse.buildId=M20110909-1335
java.version=1.6.0_24
java.vendor=Sun Microsystems Inc.
BootLoader constants: OS=linux, ARCH=x86, WS=gtk, NL=en_US
Framework arguments:  -eclipse.password /home/mduft/.eclipse/master-pw -product org.eclipse.epp.package.rcp.product
Command-line arguments:  -os linux -ws gtk -arch x86 -eclipse.password /home/mduft/.eclipse/master-pw -product org.eclipse.epp.package.rcp.product

!ENTRY org.eclipse.egit.ui 4 0 2012-03-15 10:58:21.968
!MESSAGE Cannot compute Git history.
!STACK 0
org.eclipse.jgit.errors.MissingObjectException: Missing commit a15b717a4b9138fb4d11fc07a26e9f9979b0562f
	at org.eclipse.jgit.storage.file.WindowCursor.open(WindowCursor.java:126)
	at org.eclipse.jgit.revwalk.RevWalk.getCachedBytes(RevWalk.java:855)
	at org.eclipse.jgit.revwalk.RevCommit.parseHeaders(RevCommit.java:136)
	at org.eclipse.jgit.revwalk.PendingGenerator.next(PendingGenerator.java:148)
	at org.eclipse.jgit.revwalk.TopoSortGenerator.<init>(TopoSortGenerator.java:78)
	at org.eclipse.jgit.revwalk.StartGenerator.next(StartGenerator.java:163)
	at org.eclipse.jgit.revwalk.RevWalk.next(RevWalk.java:420)
	at org.eclipse.jgit.revplot.PlotWalk.next(PlotWalk.java:132)
	at org.eclipse.jgit.revwalk.RevCommitList.fillTo(RevCommitList.java:305)
	at org.eclipse.egit.ui.internal.history.GenerateHistoryJob.run(GenerateHistoryJob.java:68)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)

!ENTRY org.eclipse.egit.ui 4 0 2012-03-15 10:58:21.978
!MESSAGE Cannot compute Git history.
!STACK 0
org.eclipse.jgit.errors.MissingObjectException: Missing commit c9059c54683b43b8595417ccd0b862081fc6dcfa
	at org.eclipse.jgit.storage.file.WindowCursor.open(WindowCursor.java:126)
	at org.eclipse.jgit.revwalk.RevWalk.getCachedBytes(RevWalk.java:855)
	at org.eclipse.jgit.revwalk.RevCommit.parseHeaders(RevCommit.java:136)
	at org.eclipse.jgit.revwalk.PendingGenerator.next(PendingGenerator.java:148)
	at org.eclipse.jgit.revwalk.TopoSortGenerator.<init>(TopoSortGenerator.java:78)
	at org.eclipse.jgit.revwalk.StartGenerator.next(StartGenerator.java:163)
	at org.eclipse.jgit.revwalk.RevWalk.next(RevWalk.java:420)
	at org.eclipse.jgit.revplot.PlotWalk.next(PlotWalk.java:132)
	at org.eclipse.jgit.revwalk.RevCommitList.fillTo(RevCommitList.java:305)
	at org.eclipse.egit.ui.internal.history.GenerateHistoryJob.run(GenerateHistoryJob.java:68)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)

!ENTRY org.eclipse.egit.ui 4 0 2012-03-15 10:58:21.985
!MESSAGE Cannot compute Git history.
!STACK 0
org.eclipse.jgit.errors.MissingObjectException: Missing commit c9059c54683b43b8595417ccd0b862081fc6dcfa
	at org.eclipse.jgit.storage.file.WindowCursor.open(WindowCursor.java:126)
	at org.eclipse.jgit.revwalk.RevWalk.getCachedBytes(RevWalk.java:855)
	at org.eclipse.jgit.revwalk.RevCommit.parseHeaders(RevCommit.java:136)
	at org.eclipse.jgit.revwalk.PendingGenerator.next(PendingGenerator.java:148)
	at org.eclipse.jgit.revwalk.TopoSortGenerator.<init>(TopoSortGenerator.java:78)
	at org.eclipse.jgit.revwalk.StartGenerator.next(StartGenerator.java:163)
	at org.eclipse.jgit.revwalk.RevWalk.next(RevWalk.java:420)
	at org.eclipse.jgit.revplot.PlotWalk.next(PlotWalk.java:132)
	at org.eclipse.jgit.revwalk.RevCommitList.fillTo(RevCommitList.java:305)
	at org.eclipse.egit.ui.internal.history.GenerateHistoryJob.run(GenerateHistoryJob.java:68)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)

!ENTRY org.eclipse.egit.ui 4 0 2012-03-15 10:58:39.075
!MESSAGE Branch could not be created
!STACK 1
org.eclipse.core.runtime.CoreException: Missing tree 441620a96b5fddca27e2176cd73d7da7edc03f0e
	at org.eclipse.egit.core.op.BranchOperation$1.run(BranchOperation.java:106)
	at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:2344)
	at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:2326)
	at org.eclipse.egit.core.op.BranchOperation.execute(BranchOperation.java:131)
	at org.eclipse.egit.ui.internal.branch.BranchOperationUI.run(BranchOperationUI.java:258)
	at org.eclipse.egit.ui.internal.repository.CreateBranchPage.createBranch(CreateBranchPage.java:455)
	at org.eclipse.egit.ui.internal.repository.CreateBranchWizard$1.run(CreateBranchWizard.java:93)
	at org.eclipse.jface.operation.ModalContext.runInCurrentThread(ModalContext.java:464)
	at org.eclipse.jface.operation.ModalContext.run(ModalContext.java:372)
	at org.eclipse.jface.wizard.WizardDialog.run(WizardDialog.java:1029)
	at org.eclipse.egit.ui.internal.repository.CreateBranchWizard.performFinish(CreateBranchWizard.java:87)
	at org.eclipse.jface.wizard.WizardDialog.finishPressed(WizardDialog.java:827)
	at org.eclipse.jface.wizard.WizardDialog.buttonPressed(WizardDialog.java:432)
	at org.eclipse.jface.dialogs.Dialog$2.widgetSelected(Dialog.java:624)
	at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:240)
	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1258)
	at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3588)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3209)
	at org.eclipse.jface.window.Window.runEventLoop(Window.java:825)
	at org.eclipse.jface.window.Window.open(Window.java:801)
	at org.eclipse.egit.ui.internal.repository.tree.command.CreateBranchCommand.execute(CreateBranchCommand.java:94)
	at org.eclipse.ui.internal.handlers.HandlerProxy.execute(HandlerProxy.java:293)
	at org.eclipse.core.commands.Command.executeWithChecks(Command.java:476)
	at org.eclipse.core.commands.ParameterizedCommand.executeWithChecks(ParameterizedCommand.java:508)
	at org.eclipse.ui.internal.handlers.HandlerService.executeCommand(HandlerService.java:169)
	at org.eclipse.ui.internal.handlers.SlaveHandlerService.executeCommand(SlaveHandlerService.java:241)
	at org.eclipse.ui.internal.handlers.SlaveHandlerService.executeCommand(SlaveHandlerService.java:241)
	at org.eclipse.ui.menus.CommandContributionItem.handleWidgetSelection(CommandContributionItem.java:829)
	at org.eclipse.ui.menus.CommandContributionItem.access$19(CommandContributionItem.java:815)
	at org.eclipse.ui.menus.CommandContributionItem$5.handleEvent(CommandContributionItem.java:805)
	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1258)
	at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3588)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3209)
	at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2696)
	at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2660)
	at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2494)
	at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:674)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:667)
	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
	at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:123)
	at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:344)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:616)
	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:622)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:577)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1410)
	at org.eclipse.equinox.launcher.Main.main(Main.java:1386)
Caused by: org.eclipse.jgit.api.errors.JGitInternalException: Missing tree 441620a96b5fddca27e2176cd73d7da7edc03f0e
	at org.eclipse.jgit.api.CheckoutCommand.call(CheckoutCommand.java:227)
	at org.eclipse.egit.core.op.BranchOperation$1.run(BranchOperation.java:102)
	... 55 more
Caused by: org.eclipse.jgit.errors.MissingObjectException: Missing tree 441620a96b5fddca27e2176cd73d7da7edc03f0e
	at org.eclipse.jgit.storage.file.WindowCursor.open(WindowCursor.java:126)
	at org.eclipse.jgit.treewalk.CanonicalTreeParser.reset(CanonicalTreeParser.java:193)
	at org.eclipse.jgit.treewalk.CanonicalTreeParser.createSubtreeIterator0(CanonicalTreeParser.java:227)
	at org.eclipse.jgit.treewalk.CanonicalTreeParser.createSubtreeIterator(CanonicalTreeParser.java:205)
	at org.eclipse.jgit.treewalk.CanonicalTreeParser.createSubtreeIterator(CanonicalTreeParser.java:1)
	at org.eclipse.jgit.treewalk.TreeWalk.enterSubtree(TreeWalk.java:908)
	at org.eclipse.jgit.dircache.DirCacheCheckout.preScanTwoTrees(DirCacheCheckout.java:251)
	at org.eclipse.jgit.dircache.DirCacheCheckout.doCheckout(DirCacheCheckout.java:395)
	at org.eclipse.jgit.dircache.DirCacheCheckout.checkout(DirCacheCheckout.java:381)
	at org.eclipse.jgit.api.CheckoutCommand.call(CheckoutCommand.java:174)
	... 56 more
!SUBENTRY 1 org.eclipse.egit.core 4 0 2012-03-15 10:58:39.077
!MESSAGE Missing tree 441620a96b5fddca27e2176cd73d7da7edc03f0e
!STACK 0
org.eclipse.jgit.api.errors.JGitInternalException: Missing tree 441620a96b5fddca27e2176cd73d7da7edc03f0e
	at org.eclipse.jgit.api.CheckoutCommand.call(CheckoutCommand.java:227)
	at org.eclipse.egit.core.op.BranchOperation$1.run(BranchOperation.java:102)
	at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:2344)
	at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:2326)
	at org.eclipse.egit.core.op.BranchOperation.execute(BranchOperation.java:131)
	at org.eclipse.egit.ui.internal.branch.BranchOperationUI.run(BranchOperationUI.java:258)
	at org.eclipse.egit.ui.internal.repository.CreateBranchPage.createBranch(CreateBranchPage.java:455)
	at org.eclipse.egit.ui.internal.repository.CreateBranchWizard$1.run(CreateBranchWizard.java:93)
	at org.eclipse.jface.operation.ModalContext.runInCurrentThread(ModalContext.java:464)
	at org.eclipse.jface.operation.ModalContext.run(ModalContext.java:372)
	at org.eclipse.jface.wizard.WizardDialog.run(WizardDialog.java:1029)
	at org.eclipse.egit.ui.internal.repository.CreateBranchWizard.performFinish(CreateBranchWizard.java:87)
	at org.eclipse.jface.wizard.WizardDialog.finishPressed(WizardDialog.java:827)
	at org.eclipse.jface.wizard.WizardDialog.buttonPressed(WizardDialog.java:432)
	at org.eclipse.jface.dialogs.Dialog$2.widgetSelected(Dialog.java:624)
	at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:240)
	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1258)
	at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3588)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3209)
	at org.eclipse.jface.window.Window.runEventLoop(Window.java:825)
	at org.eclipse.jface.window.Window.open(Window.java:801)
	at org.eclipse.egit.ui.internal.repository.tree.command.CreateBranchCommand.execute(CreateBranchCommand.java:94)
	at org.eclipse.ui.internal.handlers.HandlerProxy.execute(HandlerProxy.java:293)
	at org.eclipse.core.commands.Command.executeWithChecks(Command.java:476)
	at org.eclipse.core.commands.ParameterizedCommand.executeWithChecks(ParameterizedCommand.java:508)
	at org.eclipse.ui.internal.handlers.HandlerService.executeCommand(HandlerService.java:169)
	at org.eclipse.ui.internal.handlers.SlaveHandlerService.executeCommand(SlaveHandlerService.java:241)
	at org.eclipse.ui.internal.handlers.SlaveHandlerService.executeCommand(SlaveHandlerService.java:241)
	at org.eclipse.ui.menus.CommandContributionItem.handleWidgetSelection(CommandContributionItem.java:829)
	at org.eclipse.ui.menus.CommandContributionItem.access$19(CommandContributionItem.java:815)
	at org.eclipse.ui.menus.CommandContributionItem$5.handleEvent(CommandContributionItem.java:805)
	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1258)
	at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3588)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3209)
	at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2696)
	at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2660)
	at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2494)
	at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:674)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:667)
	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
	at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:123)
	at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:344)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:616)
	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:622)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:577)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1410)
	at org.eclipse.equinox.launcher.Main.main(Main.java:1386)
Caused by: org.eclipse.jgit.errors.MissingObjectException: Missing tree 441620a96b5fddca27e2176cd73d7da7edc03f0e
	at org.eclipse.jgit.storage.file.WindowCursor.open(WindowCursor.java:126)
	at org.eclipse.jgit.treewalk.CanonicalTreeParser.reset(CanonicalTreeParser.java:193)
	at org.eclipse.jgit.treewalk.CanonicalTreeParser.createSubtreeIterator0(CanonicalTreeParser.java:227)
	at org.eclipse.jgit.treewalk.CanonicalTreeParser.createSubtreeIterator(CanonicalTreeParser.java:205)
	at org.eclipse.jgit.treewalk.CanonicalTreeParser.createSubtreeIterator(CanonicalTreeParser.java:1)
	at org.eclipse.jgit.treewalk.TreeWalk.enterSubtree(TreeWalk.java:908)
	at org.eclipse.jgit.dircache.DirCacheCheckout.preScanTwoTrees(DirCacheCheckout.java:251)
	at org.eclipse.jgit.dircache.DirCacheCheckout.doCheckout(DirCacheCheckout.java:395)
	at org.eclipse.jgit.dircache.DirCacheCheckout.checkout(DirCacheCheckout.java:381)
	at org.eclipse.jgit.api.CheckoutCommand.call(CheckoutCommand.java:174)
	... 56 more

!ENTRY org.eclipse.egit.ui 4 0 2012-03-15 10:58:39.158
!MESSAGE Cannot compute Git history.
!STACK 0
org.eclipse.jgit.errors.MissingObjectException: Missing commit c9059c54683b43b8595417ccd0b862081fc6dcfa
	at org.eclipse.jgit.storage.file.WindowCursor.open(WindowCursor.java:126)
	at org.eclipse.jgit.revwalk.RevWalk.getCachedBytes(RevWalk.java:855)
	at org.eclipse.jgit.revwalk.RevCommit.parseHeaders(RevCommit.java:136)
	at org.eclipse.jgit.revwalk.PendingGenerator.next(PendingGenerator.java:148)
	at org.eclipse.jgit.revwalk.TopoSortGenerator.<init>(TopoSortGenerator.java:78)
	at org.eclipse.jgit.revwalk.StartGenerator.next(StartGenerator.java:163)
	at org.eclipse.jgit.revwalk.RevWalk.next(RevWalk.java:420)
	at org.eclipse.jgit.revplot.PlotWalk.next(PlotWalk.java:132)
	at org.eclipse.jgit.revwalk.RevCommitList.fillTo(RevCommitList.java:305)
	at org.eclipse.egit.ui.internal.history.GenerateHistoryJob.run(GenerateHistoryJob.java:68)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)

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