In the catalina log file the disk-usage plugin often throws exceptions like the one below:
05-Jun-2010 19:24:10 hudson.plugins.disk_usage.DiskUsageThread execute
WARNING: Error when adding disk usage property for groupId:artifact
java.io.IOException: Unable to delete D:\Hudson\.hudson\jobs\Job\modules\groupId.artifactId$submoduleA\config.xml
at hudson.util.AtomicFileWriter.commit(AtomicFileWriter.java:109)
at hudson.XmlFile.write(XmlFile.java:166)
at hudson.model.AbstractItem.save(AbstractItem.java:220)
at hudson.plugins.disk_usage.DiskUsageThread.execute(DiskUsageThread.java:57)
at hudson.model.AsyncPeriodicWork$1.run(AsyncPeriodicWork.java:51)
at java.lang.Thread.run(Thread.java:619)

any chance to take a look at why these exceptions are being thrown?

many thanks