Hi, i could not decide if this is a bug or not so i needed to discuss it here to make sure. the following is my persistenceAdapter configuration
<amq:journaledJDBC journalLogFiles="5" dataDirectory="/some/path" dataSource="#someDS" useDatabaseLock="false" /> what i do is, i stop the context containing this broker configuration and after the broker shuts down, there is a repeating exception: ActiveMQ Cleanup Timer ERROR org.apache.activemq.store.jdbc.DefaultDatabaseLocker - Failed to update database lock: java.lang.NullPointerException java.lang.NullPointerException at org.apache.activemq.store.jdbc.DefaultDatabaseLocker.keepAlive(DefaultDatabaseLocker.java:102) at org.apache.activemq.store.jdbc.JDBCPersistenceAdapter.databaseLockKeepAlive(JDBCPersistenceAdapter.java:458) at org.apache.activemq.store.jdbc.JDBCPersistenceAdapter$3.run(JDBCPersistenceAdapter.java:260) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:417) at java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java:280) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:135) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$101(ScheduledThreadPoolExecutor.java:65) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.runPeriodic(ScheduledThreadPoolExecutor.java:142) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:166) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:650) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:675) at java.lang.Thread.run(Thread.java:595) ActiveMQ Cleanup Timer INFO org.apache.activemq.store.jdbc.JDBCPersistenceAdapter - No longer able to keep the exclusive lock so giving up being a master ActiveMQ Cleanup Timer WARN org.apache.activemq.store.jdbc.JDBCPersistenceAdapter - Failed to stop broker I was just killing the entire application before so i did not see this problem. And this does not happen when i set useDatabaseLock to true because it finds the datasource to remove the lock but i am trying to get the lock out of the database to the journal. Do you have any ideas? Thanks in advance -- View this message in context: http://www.nabble.com/NullPointerException%2C-journaledJDBC-tp18067095p18067095.html Sent from the ActiveMQ - User mailing list archive at Nabble.com.