here is the stack trace (xwiki.log) [EvictionTimer-4] WARN eviction.EvictionTimerTask - Eviction task encountered an unexpected error java.lang.NullPointerException at org.apache.log4j.Category.isEnabledFor(Category.java:749) at org.apache.commons.logging.impl.Log4JLogger.isTraceEnabled(Log4JLogger.java:333) at org.jboss.cache.eviction.EvictionTimerTask.processRegions(EvictionTimerTask.java:102) at org.jboss.cache.eviction.EvictionTimerTask.access$100(EvictionTimerTask.java:42) at org.jboss.cache.eviction.EvictionTimerTask$Task.run(EvictionTimerTask.java:135) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441) at java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java:317) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:150) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$101(ScheduledThreadPoolExecutor.java:98) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.runPeriodic(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:204) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) at java.lang.Thread.run(Thread.java:662) -- View this message in context: http://xwiki.475771.n2.nabble.com/MindMap-Macro-ClassNotFoundException-freem... Sent from the XWiki- Users mailing list archive at Nabble.com.