[ARTEMIS-685] NullPointerException when restarting a docker container running artemis

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Not A Problem
• Affects Version/s: 1.3.0
• Component/s: Broker
• Labels: failover logging reliability

Environment

artemis running inside an ubuntu docker container

• Assignee: Justin Bertram
• Reporter: david galloway
• Created: 17/Aug/16 13:02
• Updated: 07/Nov/16 16:36
• Resolved: 22/Aug/16 18:34

Description

when restarting the docker container, a NPE is thrown :-

WARN  [2016-08-17 12:47:34,958] [Thread-6 (ActiveMQ-client-global-threads-328197868)] o.a.a.a.c.client: AMQ212037: Connection failure has been detected: AMQ119015: The connection was disconnected because of server shutdown [code=DISCONNECTED]
WARN  [2016-08-17 12:47:34,982] [Thread-6 (ActiveMQ-client-global-threads-328197868)] o.a.a.a.c.client: AMQ212007: connector.create or connectorFactory.createConnector should never throw an exception, implementation is badly behaved, but we will deal with it anyway.
! java.lang.NullPointerException: null
! at org.apache.activemq.artemis.core.remoting.impl.netty.NettyConnector.createConnection(NettyConnector.java:682)
! at org.apache.activemq.artemis.core.client.impl.ClientSessionFactoryImpl.openTransportConnection(ClientSessionFactoryImpl.java:1044)
! at org.apache.activemq.artemis.core.client.impl.ClientSessionFactoryImpl.createTransportConnection(ClientSessionFactoryImpl.java:1088)
! at org.apache.activemq.artemis.core.client.impl.ClientSessionFactoryImpl.establishNewConnection(ClientSessionFactoryImpl.java:1273)
! at org.apache.activemq.artemis.core.client.impl.ClientSessionFactoryImpl.getConnection(ClientSessionFactoryImpl.java:898)
! at org.apache.activemq.artemis.core.client.impl.ClientSessionFactoryImpl.getConnectionWithRetry(ClientSessionFactoryImpl.java:796)
! at org.apache.activemq.artemis.core.client.impl.ClientSessionFactoryImpl.reconnectSessions(ClientSessionFactoryImpl.java:745)
! at org.apache.activemq.artemis.core.client.impl.ClientSessionFactoryImpl.failoverOrReconnect(ClientSessionFactoryImpl.java:609)
! at org.apache.activemq.artemis.core.client.impl.ClientSessionFactoryImpl.handleConnectionFailure(ClientSessionFactoryImpl.java:507)
! at org.apache.activemq.artemis.core.client.impl.ClientSessionFactoryImpl.access$500(ClientSessionFactoryImpl.java:71)
! at org.apache.activemq.artemis.core.client.impl.ClientSessionFactoryImpl$DelegatingFailureListener.connectionFailed(ClientSessionFactoryImpl.java:1183)
! at org.apache.activemq.artemis.spi.core.protocol.AbstractRemotingConnection.callFailureListeners(AbstractRemotingConnection.java:67)
! at org.apache.activemq.artemis.core.protocol.core.impl.RemotingConnectionImpl.fail(RemotingConnectionImpl.java:203)
! at org.apache.activemq.artemis.spi.core.protocol.AbstractRemotingConnection.fail(AbstractRemotingConnection.java:209)
! at org.apache.activemq.artemis.core.client.impl.ClientSessionFactoryImpl$CloseRunnable.run(ClientSessionFactoryImpl.java:1006)
! at org.apache.activemq.artemis.utils.OrderedExecutorFactory$OrderedExecutor$ExecutorTask.run(OrderedExecutorFactory.java:103)
! at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
! at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
! at java.lang.Thread.run(Thread.java:745)

Is this part of the message correct?

connector.create or connectorFactory.createConnector should never throw an exception, implementation is badly behaved, but we will deal with it anyway.
! java.lang.NullPointerException: null
etc.

is the o.a.a.a.c.client badly implemented or is an NPE inevitable and forgiveable if the environment running artemis broker is rebooted?