Eclipse Internal error makes it impossible to use git

Question

I am banging my head since yesterday on a problem that popped up after i switched branch on my Android git-managed project, an error pop-up keeps showing making it impossible to use git

Eclipse's log shows :

!ENTRY org.eclipse.core.jobs 4 2 2014-11-27 12:05:44.993
!MESSAGE An internal error occurred during: "Computing Git status for repository git".
!STACK 0
java.lang.NullPointerException
    at org.eclipse.jgit.treewalk.WorkingTreeIterator.computeHash(WorkingTreeIterator.java:1003)
    at org.eclipse.jgit.treewalk.WorkingTreeIterator.contentCheck(WorkingTreeIterator.java:949)
    at org.eclipse.jgit.treewalk.WorkingTreeIterator.isModified(WorkingTreeIterator.java:843)
    at org.eclipse.jgit.treewalk.filter.IndexDiffFilter.include(IndexDiffFilter.java:223)
    at org.eclipse.jgit.treewalk.filter.AndTreeFilter$List.include(AndTreeFilter.java:163)
    at org.eclipse.jgit.treewalk.TreeWalk.next(TreeWalk.java:560)
    at org.eclipse.jgit.lib.IndexDiff.diff(IndexDiff.java:389)
    at org.eclipse.egit.core.internal.indexdiff.IndexDiffCacheEntry.calcIndexDiffDataFull(IndexDiffCacheEntry.java:486)
    at org.eclipse.egit.core.internal.indexdiff.IndexDiffCacheEntry.access$7(IndexDiffCacheEntry.java:475)
    at org.eclipse.egit.core.internal.indexdiff.IndexDiffCacheEntry$4.run(IndexDiffCacheEntry.java:286)
    at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)

I tried various attempts to fix it :

• Uninstalling EGIT from Eclipse via MarketPlace the process seems good but after restart, EGIT's still there.
• Deleting it manually by removing it from plugins and featuresfolders as suggested on other posts.
• Starting a fresh Eclipse install and importing git projects, the problem shows off right after the project are added.
• Cloning my GIT repo into another location in a new workspace same problem.
• I couldn't find the exact version of org.eclipse.jgit.treewalk.WorkingTreeIterator to check on what the NPE happens

It seems to like if my GIT repo was corrupted, any help would be much appreciated.

EDIT I don't know if it's relevant but here's Session data :

eclipse.buildId=4.4.1.M20140925-0400
java.version=1.6.0_43
java.vendor=Sun Microsystems Inc.
BootLoader constants: OS=win32, ARCH=x86_64, WS=win32, NL=fr_FR
Framework arguments:  -product org.eclipse.epp.package.java.product
Command-line arguments:  -data D:\Development\workspace -os win32 -ws win32 -arch x86_64 -product org.eclipse.epp.package.java.product

Answer 1

I finally get rid of the problem, i don't know what was exactly the problem but i guess it must be some kind of inconsistencies between Eclipse EGIT plugin and Git repository. After staging/committing/pushing changes via git command line, the exception stopped showing in Eclipse, i know it's not a very explicit Problem/Solution but i'll let here, it may help or put someone with the same problem's symptoms on track .

Answer 2

I was launching eclipse.exe on Windows 10, and it was defaulting to Compatibility Mode for Windows 7. I unchecked that, and the error went away.

Source: https://bugs.eclipse.org/bugs/show_bug.cgi?id=471027

Answer 3

I think this is a bug in Eclipse. Updating submodules worked around the issue for me. https://bugs.eclipse.org/bugs/show_bug.cgi?format=multiple&id=450567

Answer 4

1. Take a backup of your files
2. Reset them to head revision.
3. Right click on project select team->select->share project->dialogue box appears with local location of project select and say OK.
4. Now right click on project->team->disconnect.
5. Refresh your project.

Answer 5

This solution worked for me right click on project go to Team - select Disconnect. Now refresh Project. commit all ur changes to branch. restart eclipse Problem solved.

if you want to share the project again. you can share it by following same steps Team - Share Porject.