The build history for a project sometimes reports duplicate entries for a build
and/or gets the build number incorrect. The contents of the Build History panel
toggles between two sets of data:

Build History
Failed #109 Feb 10, 2008 8:03:32 PM
Failed #109 Feb 10, 2008 8:03:32 PM
Success #108 Feb 12, 2008 3:35:59 AM
Failed #107 Feb 11, 2008 4:04:19 AM
Failed #106 Feb 10, 2008 8:03:31 PM
Success #105 Feb 10, 2008 3:34:11 AM

And then the output toggles to this upon refresh:

Build History
Failed #109 Feb 10, 2008 8:03:32 PM
Success #108 Feb 12, 2008 3:35:59 AM
Failed #107 Feb 11, 2008 4:04:19 AM
Failed #106 Feb 10, 2008 8:03:31 PM
Success #105 Feb 10, 2008 3:34:11 AM

The next refresh returns the contents back to the first set of data.

This is from v1.176. I checked the changelog and did not see any fixes
pertaining to this issue.

Relevant info:
a. The project in question is dependent on another project (and in turn has a
project that is dependent on it). I don't know if that has anything to do with
the error or not.
b. The system is configured for only one build executor
c. The project is configured to poll subversion with the following pattern: 0
*/4 * * *
d. The nextBuildNumber for the project is set to 109
e. The builds directory contains (among others) the following subdirs
2008-02-12_03-35-59
2008-02-11_04-04-19
2008-02-10_20-03-31
2008-02-10_20-03-32
2008-02-10_03-34-11
f. The log contents of the 2008-02-10_20-03-31 build look good.
g. The log contents of the 2008-02-10_20-03-32 build indicates a failure:
started
Updating http:<removed by jb>
ERROR: Failed to update <removed by jb>
org.tmatesoft.svn.core.SVNException: svn: Working copy '<removed by jb>' locked;
try performing 'cleanup'
at
org.tmatesoft.svn.core.internal.wc.SVNErrorManager.error(SVNErrorManager.java:49)
at
org.tmatesoft.svn.core.internal.wc.admin.SVNAdminArea14.lock(SVNAdminArea14.java:1370)
at
org.tmatesoft.svn.core.internal.wc.admin.SVNWCAccess.doOpen(SVNWCAccess.java:348)
at org.tmatesoft.svn.core.internal.wc.admin.SVNWCAccess.open(SVNWCAccess.java:261)
at
org.tmatesoft.svn.core.internal.wc.admin.SVNWCAccess.openAnchor(SVNWCAccess.java:153)
at org.tmatesoft.svn.core.wc.SVNUpdateClient.doUpdate(SVNUpdateClient.java:145)
at hudson.scm.SubversionSCM$CheckOutTask.invoke(SubversionSCM.java:384)
at hudson.scm.SubversionSCM$CheckOutTask.invoke(SubversionSCM.java:356)
at hudson.FilePath.act(FilePath.java:291)
at hudson.scm.SubversionSCM.checkout(SubversionSCM.java:353)
at hudson.scm.SubversionSCM.checkout(SubversionSCM.java:299)
at hudson.model.AbstractProject.checkout(AbstractProject.java:558)
at hudson.model.AbstractBuild$AbstractRunner.checkout(AbstractBuild.java:223)
at hudson.model.AbstractBuild$AbstractRunner.run(AbstractBuild.java:189)
at hudson.model.Run.run(Run.java:656)
at hudson.model.Build.run(Build.java:102)
at hudson.model.ResourceController.execute(ResourceController.java:70)
at hudson.model.Executor.run(Executor.java:65)
finished: FAILURE

I'll be happy to provide any other information you need.

jb