A NullPointerException can occur in the Svn2Scanner when Javahl passes in a null for the changepaths collection of an svn log operation

Caused by: java.lang.NullPointerException
at com.atlassian.fisheye.svn.Svn2Scanner$2.singleMessage(Svn2Scanner.java:335)
at org.tigris.subversion.javahl.SVNClient.logMessages(Native Method)

Workaround: remove the native SVN library configuration via the "Server" menu in the Administration section of FishEye/Crucible and restart.