NPE with CVS repo when doing a Lucene index upgrade (when there is some strange head-less state)

2011-06-15 12:58:19,741 ERROR [IncrementalPinger1 ] fisheye.app CvsHistoryChangeDetector-doRunOnce - problem with initial scan
java.lang.NullPointerException
	at com.cenqua.fisheye.cvsrep.cache.CachedCvsRepositoryUpdater.upgradeContentIndex(CachedCvsRepositoryUpdater.java:406)
	at com.cenqua.fisheye.cvsrep.cache.CachedCvsRepositoryUpdater.upgradeLuceneIndexesIfNecessary(CachedCvsRepositoryUpdater.java:348)
	at com.cenqua.fisheye.cvsrep.cache.CachedCvsRepositoryUpdater.upgrade(CachedCvsRepositoryUpdater.java:296)
	at com.cenqua.fisheye.cvsrep.cache.CvsHistoryChangeDetector.doRunOnce(CvsHistoryChangeDetector.java:117)
	at com.cenqua.fisheye.cvsrep.cache.CvsHistoryChangeDetector.ping(CvsHistoryChangeDetector.java:54)
	at com.cenqua.fisheye.cvsrep.cache.CachedCvsRepositoryUpdater.pingSlurp(CachedCvsRepositoryUpdater.java:279)
	at com.cenqua.fisheye.cvsrep.CvsRepositoryEngine.doSlurp(CvsRepositoryEngine.java:68)
	at com.cenqua.fisheye.rep.RepositoryEngine.slurp(RepositoryEngine.java:390)
	at com.cenqua.fisheye.rep.ping.OneOffPingRequest.doRequest(OneOffPingRequest.java:25)
	at com.cenqua.fisheye.rep.ping.PingRequest.process(PingRequest.java:66)
	at com.cenqua.fisheye.rep.RepositoryHandle.processPingRequests(RepositoryHandle.java:132)
	at com.cenqua.fisheye.rep.RepositoryHandle.queuePingRequest(RepositoryHandle.java:122)
	at com.cenqua.fisheye.rep.ping.PingRequest.run(PingRequest.java:33)
	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)