Subversive "Compare with Revision "always fails in Eclipse Kepler

Question

When I try to compare a current file in Eclipse Kepler with an older revision I always get the message that there are no difference (which is not true) followed by the error reporting screen saying:

> SVN: '0x00400103: Compare with Revision' operation finished with
> error: null java.lang.NullPointerException

I actually switched from Subclipse to Subversive as Comparing was much more advanced there but after migrating eclipse from on computer to the other (which involed relinking my projects to there repos) I cannot use Compare anymore.

The section in the .metadata/.logs says:

!ENTRY org.eclipse.team.svn.core.svnnature 4 0 2014-01-17 11:09:58.870
!MESSAGE SVN: '0x00400103: Compare with Revision' operation finished with error
!SUBENTRY 1 org.eclipse.team.svn.core.svnnature 4 0 2014-01-17 11:09:58.870
!MESSAGE SVN: '0x00400103: Compare with Revision' operation finished with error: null
!STACK 0
java.lang.NullPointerException
    at org.tmatesoft.svn.core.internal.wc2.ng.SvnNgDiffSummarize.doDiffReposRepos(SvnNgDiffSummarize.java:229)
    at org.tmatesoft.svn.core.internal.wc2.ng.SvnNgDiffSummarize.doDiff(SvnNgDiffSummarize.java:86)
    at org.tmatesoft.svn.core.internal.wc2.ng.SvnNgDiffSummarize.run(SvnNgDiffSummarize.java:61)
    at org.tmatesoft.svn.core.internal.wc2.ng.SvnNgDiffSummarize.run(SvnNgDiffSummarize.java:1)
    at org.tmatesoft.svn.core.internal.wc2.ng.SvnNgOperationRunner.run(SvnNgOperationRunner.java:20)
    at org.tmatesoft.svn.core.internal.wc2.SvnOperationRunner.run(SvnOperationRunner.java:20)
    at org.tmatesoft.svn.core.wc2.SvnOperationFactory.run(SvnOperationFactory.java:1149)
    at org.tmatesoft.svn.core.wc2.SvnOperation.run(SvnOperation.java:294)
    at org.tmatesoft.svn.core.javahl17.SVNClientImpl.diffSummarize(SVNClientImpl.java:1036)
    at org.polarion.team.svn.connector.svnkit.SVNKitConnector.diffStatus(SVNKitConnector.java:1599)
    at org.eclipse.team.svn.core.extension.factory.ThreadNameModifier.diffStatus(ThreadNameModifier.java:158)
    at org.eclipse.team.svn.core.utility.SVNUtility.diffStatus(SVNUtility.java:318)
    at org.eclipse.team.svn.ui.operation.CompareResourcesInternalOperation$3.run(CompareResourcesInternalOperation.java:148)
    at org.eclipse.team.svn.core.utility.ProgressMonitorUtility.doSubTask(ProgressMonitorUtility.java:118)
    at org.eclipse.team.svn.core.operation.AbstractActionOperation.protectStep(AbstractActionOperation.java:156)
    at org.eclipse.team.svn.ui.operation.CompareResourcesInternalOperation.runImpl(CompareResourcesInternalOperation.java:138)
    at org.eclipse.team.svn.ui.operation.CompareResourcesOperation$1.runImpl(CompareResourcesOperation.java:64)
    at org.eclipse.team.svn.core.operation.AbstractActionOperation.run(AbstractActionOperation.java:82)
    at org.eclipse.team.svn.core.utility.ProgressMonitorUtility.doTask(ProgressMonitorUtility.java:104)
    at org.eclipse.team.svn.core.operation.CompositeOperation.runImpl(CompositeOperation.java:99)
    at org.eclipse.team.svn.core.operation.AbstractActionOperation.run(AbstractActionOperation.java:82)
    at org.eclipse.team.svn.core.utility.ProgressMonitorUtility.doTask(ProgressMonitorUtility.java:104)
    at org.eclipse.team.svn.core.operation.CompositeOperation.runImpl(CompositeOperation.java:99)
    at org.eclipse.team.svn.core.operation.AbstractActionOperation.run(AbstractActionOperation.java:82)
    at org.eclipse.team.svn.core.operation.LoggedOperation.run(LoggedOperation.java:40)
    at org.eclipse.team.svn.core.utility.ProgressMonitorUtility.doTask(ProgressMonitorUtility.java:104)
    at org.eclipse.team.svn.core.utility.ProgressMonitorUtility.doTaskExternal(ProgressMonitorUtility.java:90)
    at org.eclipse.team.svn.ui.utility.DefaultCancellableOperationWrapper.run(DefaultCancellableOperationWrapper.java:55)
    at org.eclipse.team.svn.ui.utility.SVNTeamOperationWrapper.run(SVNTeamOperationWrapper.java:35)
    at org.eclipse.team.internal.ui.actions.JobRunnableContext.run(JobRunnableContext.java:144)
    at org.eclipse.team.internal.ui.actions.JobRunnableContext$ResourceJob.runInWorkspace(JobRunnableContext.java:72)
    at org.eclipse.core.internal.resources.InternalWorkspaceJob.run(InternalWorkspaceJob.java:38)
    at org.eclipse.core.internal.jobs.Worker.run(Worker.java:53)

Answer 1

This appears to be Eclipse bug 425740 which is closed as a bug in the third party SVN code: http://issues.tmatesoft.com/issue/SVNKIT-427