NullPointerException at Svn2ChangesetDiffSummary.addDiffPath

NPE when indexing a repository:

com.cenqua.fisheye.rep.RepositoryClientException - java.lang.NullPointerException
com.cenqua.fisheye.rep.RepositoryClientException: java.lang.NullPointerException
at com.cenqua.fisheye.svn.SvnThrottledClient.executeNoThrottle(SvnThrottledClient.java:163)
at com.cenqua.fisheye.svn.SvnThrottledClient.execute(SvnThrottledClient.java:132)
at com.cenqua.fisheye.svn.SvnThrottledClient.diffSummarize(SvnThrottledClient.java:200)
at com.atlassian.fisheye.svn.Svn2Infill2Processor.summarizeDiff(Svn2Infill2Processor.java:282)
at com.atlassian.fisheye.svn.Svn2Infill2Processor.getDiffSummary(Svn2Infill2Processor.java:268)
at com.atlassian.fisheye.svn.Svn2Infill2Processor.infillChangeSet(Svn2Infill2Processor.java:188)
at com.atlassian.fisheye.svn.Svn2Infill2Processor.access$100(Svn2Infill2Processor.java:78)
at com.atlassian.fisheye.svn.Svn2Infill2Processor$1.perform(Svn2Infill2Processor.java:121)
at com.atlassian.fisheye.svn.Svn2Infill2Processor$1.perform(Svn2Infill2Processor.java:110)
at com.cenqua.fisheye.cache.BaseRevisionCache.withDbWriteLock(BaseRevisionCache.java:967)
at com.atlassian.fisheye.svn.Svn2Infill2Processor.process(Svn2Infill2Processor.java:110)
at com.atlassian.fisheye.svn.Svn2Scanner.slurpRepository(Svn2Scanner.java:210)
at com.atlassian.fisheye.svn.Svn2Scanner.doSlurpTransaction(Svn2Scanner.java:177)
at com.cenqua.fisheye.rep.BaseRepositoryScanner.ping(BaseRepositoryScanner.java:85)
at com.cenqua.fisheye.rep.BaseRepositoryEngine.doSlurp(BaseRepositoryEngine.java:92)
at com.cenqua.fisheye.rep.RepositoryEngine.slurp(RepositoryEngine.java:408)
at com.cenqua.fisheye.rep.ping.IndexingPingRequest.doRequest(IndexingPingRequest.java:25)
at com.cenqua.fisheye.rep.ping.IncrementalPingRequest.doRequest(IncrementalPingRequest.java:30)
at com.cenqua.fisheye.rep.ping.PingRequest.process(PingRequest.java:58)
at com.cenqua.fisheye.rep.RepositoryHandle.processPingRequests(RepositoryHandle.java:228)
at com.cenqua.fisheye.rep.RepositoryHandle.access$100(RepositoryHandle.java:59)
at com.cenqua.fisheye.rep.RepositoryHandle$2.run(RepositoryHandle.java:185)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
Caused by: java.lang.NullPointerException
at com.atlassian.fisheye.svn.Svn2ChangesetDiffSummary.addDiffPath(Svn2ChangesetDiffSummary.java:169)
at com.atlassian.fisheye.svn.Svn2Infill2Processor$4.onSummary(Svn2Infill2Processor.java:325)
at org.tmatesoft.svn.core.javahl.SVNClientImpl$17.handleDiffStatus(SVNClientImpl.java:2175)
at org.tmatesoft.svn.core.internal.wc2.compat.SvnCodec$9.receive(SvnCodec.java:139)
at org.tmatesoft.svn.core.internal.wc2.compat.SvnCodec$9.receive(SvnCodec.java:136)
at org.tmatesoft.svn.core.wc2.SvnReceivingOperation.receive(SvnReceivingOperation.java:78)
at org.tmatesoft.svn.core.internal.wc2.remote.SvnRemoteDiffSummarize$2.handleDiffStatus(SvnRemoteDiffSummarize.java:188)
at org.tmatesoft.svn.core.internal.wc.SVNDiffStatusEditor.deleteEntry(SVNDiffStatusEditor.java:71)
at org.tmatesoft.svn.core.internal.wc.SVNCancellableEditor.deleteEntry(SVNCancellableEditor.java:66)
at org.tmatesoft.svn.core.internal.io.dav.handlers.DAVEditorHandler.startElement(DAVEditorHandler.java:407)
at org.tmatesoft.svn.core.internal.io.dav.handlers.BasicDAVHandler.startElement(BasicDAVHandler.java:89)
at org.apache.xerces.parsers.AbstractSAXParser.startElement(Unknown Source)
at org.apache.xerces.parsers.AbstractXMLDocumentParser.emptyElement(Unknown Source)
at org.apache.xerces.impl.XMLNSDocumentScannerImpl.scanStartElement(Unknown Source)
at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown Source)
at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
at org.apache.xerces.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown Source)
at org.tmatesoft.svn.core.internal.io.dav.http.HTTPConnection.readData(HTTPConnection.java:873)
at org.tmatesoft.svn.core.internal.io.dav.http.HTTPConnection.readData(HTTPConnection.java:838)
at org.tmatesoft.svn.core.internal.io.dav.http.HTTPRequest.dispatch(HTTPRequest.java:218)
at org.tmatesoft.svn.core.internal.io.dav.http.HTTPConnection.request(HTTPConnection.java:447)
at org.tmatesoft.svn.core.internal.io.dav.http.HTTPConnection.request(HTTPConnection.java:365)
at org.tmatesoft.svn.core.internal.io.dav.http.HTTPConnection.request(HTTPConnection.java:353)
at org.tmatesoft.svn.core.internal.io.dav.DAVConnection.performHttpRequest(DAVConnection.java:708)
at org.tmatesoft.svn.core.internal.io.dav.DAVConnection.doReport(DAVConnection.java:335)
at org.tmatesoft.svn.core.internal.io.dav.DAVRepository.runReport(DAVRepository.java:1287)
at org.tmatesoft.svn.core.internal.io.dav.DAVRepository.diff(DAVRepository.java:815)
at org.tmatesoft.svn.core.internal.wc2.remote.SvnRemoteDiffSummarize.doDiffURLURL(SvnRemoteDiffSummarize.java:161)
at org.tmatesoft.svn.core.internal.wc2.remote.SvnRemoteDiffSummarize.doDiffURL(SvnRemoteDiffSummarize.java:62)
at org.tmatesoft.svn.core.internal.wc2.remote.SvnRemoteDiffSummarize.run(SvnRemoteDiffSummarize.java:46)
at org.tmatesoft.svn.core.internal.wc2.remote.SvnRemoteDiffSummarize.run(SvnRemoteDiffSummarize.java:33)
at org.tmatesoft.svn.core.internal.wc2.SvnOperationRunner.run(SvnOperationRunner.java:20)
at org.tmatesoft.svn.core.wc2.SvnOperationFactory.run(SvnOperationFactory.java:1235)
at org.tmatesoft.svn.core.wc2.SvnOperation.run(SvnOperation.java:291)
at org.tmatesoft.svn.core.wc.SVNDiffClient.doDiffStatus(SVNDiffClient.java:3214)
at org.tmatesoft.svn.core.wc.SVNDiffClient.doDiffStatus(SVNDiffClient.java:1546)
at org.tmatesoft.svn.core.javahl.SVNClientImpl.diffSummarize(SVNClientImpl.java:2188)
at com.cenqua.fisheye.svn.SvnThrottledClient$4.call(SvnThrottledClient.java:204)
at com.cenqua.fisheye.svn.SvnThrottledClient$4.call(SvnThrottledClient.java:201)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138)
at com.cenqua.fisheye.svn.SvnTask.run(SvnTask.java:32)
... 3 more