Hi all, I got the following error in activemq.log, ActiveMQ's version is 5.2.0. Do you have any idea? 2008-12-10 21:44:04,485 [.15.2.125:47814] ERROR Service - Async error occurred: java.lang.NullPointerException java.lang.NullPointerException at org.apache.activemq.broker.region.TopicSubscription.acknowledge(TopicSubscription.java:221) at org.apache.activemq.broker.region.AbstractRegion.acknowledge(AbstractRegion.java:373) at org.apache.activemq.broker.region.RegionBroker.acknowledge(RegionBroker.java:462) at org.apache.activemq.broker.TransactionBroker.acknowledge(TransactionBroker.java:194) at org.apache.activemq.broker.BrokerFilter.acknowledge(BrokerFilter.java:74) at org.apache.activemq.broker.BrokerFilter.acknowledge(BrokerFilter.java:74) at org.apache.activemq.broker.MutableBrokerFilter.acknowledge(MutableBrokerFilter.java:85) at org.apache.activemq.broker.TransportConnection.processMessageAck(TransportConnection.java:456) at org.apache.activemq.command.MessageAck.visit(MessageAck.java:205) at org.apache.activemq.broker.TransportConnection.service(TransportConnection.java:305) at org.apache.activemq.broker.TransportConnection$1.onCommand(TransportConnection.java:179) at org.apache.activemq.transport.TransportFilter.onCommand(TransportFilter.java:68) at org.apache.activemq.transport.WireFormatNegotiator.onCommand(WireFormatNegotiator.java:143) at org.apache.activemq.transport.InactivityMonitor.onCommand(InactivityMonitor.java:206) at org.apache.activemq.transport.TransportSupport.doConsume(TransportSupport.java:84) at org.apache.activemq.transport.tcp.TcpTransport.doRun(TcpTransport.java:203) at org.apache.activemq.transport.tcp.TcpTransport.run(TcpTransport.java:185) at java.lang.Thread.run(Thread.java:619)
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