Exception while publishing messages to openjms

Hi,
I am using openjms-0.7.7 ,connector is http and database is derby.
I got a exception while publishing message to openjms.


javax.jms.JMSException: Failed to make message persistent:
org.exolab.jms.persistence.PersistenceException: Failed to add message
handle=org.exolab.jms.messagemgr.TopicConsumerMessageHandle@6598b
        at
org.exolab.jms.messagemgr.MessageMgr.addPersistentMessage(MessageMgr.java:312)
        at org.exolab.jms.messagemgr.MessageMgr.add(MessageMgr.java:227)
        at
org.exolab.jms.server.JmsServerSession.send(JmsServerSession.java:221)
        at
org.exolab.jms.server.net.RemoteServerSession.send(RemoteServerSession.java:152)
        at sun.reflect.GeneratedMethodAccessor76.invoke(Unknown Source)
        at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:324)
        at
org.exolab.jms.net.orb.DefaultORB$Handler.invoke(DefaultORB.java:442)
        at
org.exolab.jms.net.orb.DefaultORB$Handler.invoke(DefaultORB.java:468)
        at
org.exolab.jms.net.connector.ContextInvocationHandler.invoke(ContextInvocationHandler.java:108)
        at
org.exolab.jms.net.multiplexer.MultiplexedManagedConnection.request(MultiplexedManagedConnection.java:332)
        at
org.exolab.jms.net.multiplexer.Multiplexer$1.run(Multiplexer.java:653)
        at
EDU.oswego.cs.dl.util.concurrent.PooledExecutor$Worker.run(Unknown
Source)
        at java.lang.Thread.run(Thread.java:534)


Any help would be greatly appreciated.

Thanks,
Archana



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