2005-09-12 12:20:01,185 ERROR [org.quartz.core.JobRunShell] Job DEFAULT.indexQueueFlushJob threw an unhandled Exception:
java.lang.NullPointerException
at bucket.container.ContainerManager.getComponent(ContainerManager.java:32)
at com.atlassian.confluence.search.lucene.IndexQueueFlusher.execute(IndexQueueFlusher.java:26)
at org.quartz.core.JobRunShell.run(JobRunShell.java:191)
at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:516)
2005-09-12 12:20:01,185 ERROR [org.quartz.core.ErrorLogger] Job (DEFAULT.indexQueueFlushJob threw an exception.
org.quartz.SchedulerException: Job threw an unhandled exception. [See nested exception: java.lang.NullPointerException]
at org.quartz.core.JobRunShell.run(JobRunShell.java:202)
at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:516)

• Nested Exception (Underlying Cause) ---------------
  java.lang.NullPointerException
  at bucket.container.ContainerManager.getComponent(ContainerManager.java:32)
  at com.atlassian.confluence.search.lucene.IndexQueueFlusher.execute(IndexQueueFlusher.java:26)
  at org.quartz.core.JobRunShell.run(JobRunShell.java:191)
  at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:516)
  2005-09-12 12:20:03,341 WARN [bucket.upgrade.UpgradeManager] Build numbers are not parseable. Upgrade skipped
  2005-09-12 12:20:03,341 WARN [bucket.upgrade.UpgradeManager] Build numbers are not parseable. Upgrade skipped

The above exception is thrown on startup when the indexing runs before Confluence is fully setup.