activemq-ra/src/test/java/org/apache/activemq/ra/ServerSessionImplTest.java - activemq - Git at Google

 /**
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.
  * The ASF licenses this file to You under the Apache License, Version 2.0
  * (the "License"); you may not use this file except in compliance with
  * the License.  You may obtain a copy of the License at
  *
  *      http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
 package org.apache.activemq.ra;

 import org.apache.activemq.ActiveMQConnection;
 import org.apache.activemq.ActiveMQSession;
 import org.apache.activemq.command.ActiveMQMessage;
 import org.apache.activemq.command.ActiveMQTextMessage;
 import org.apache.activemq.command.ConsumerId;
 import org.apache.activemq.command.MessageDispatch;
 import org.apache.activemq.command.MessageId;
 import org.apache.activemq.command.TransactionInfo;
 import org.apache.activemq.util.Wait;
 import org.hamcrest.Description;
 import org.hamcrest.Matchers;
 import org.jmock.Expectations;
 import org.jmock.Mockery;
 import org.jmock.api.Action;
 import org.jmock.api.Invocation;
 import org.jmock.integration.junit4.JMock;
 import org.jmock.lib.legacy.ClassImposteriser;
 import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;

 import javax.jms.JMSException;
 import javax.jms.Session;
 import javax.resource.spi.BootstrapContext;
 import javax.resource.spi.endpoint.MessageEndpointFactory;
 import javax.resource.spi.work.ExecutionContext;
 import javax.resource.spi.work.Work;
 import javax.resource.spi.work.WorkListener;
 import javax.resource.spi.work.WorkManager;
 import javax.transaction.xa.XAResource;
 import java.lang.reflect.Method;
 import java.util.concurrent.CountDownLatch;
 import java.util.concurrent.ExecutorService;
 import java.util.concurrent.Executors;
 import java.util.concurrent.TimeUnit;
 import java.util.concurrent.atomic.AtomicBoolean;
 import java.util.concurrent.atomic.AtomicReference;

 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertTrue;

 @RunWith(JMock.class)
 public class ServerSessionImplTest {

     private static final Logger LOG = LoggerFactory.getLogger(ServerSessionImplTest.class);
     private static final String BROKER_URL = "vm://localhost?broker.persistent=false";

     private ServerSessionImpl serverSession;
     private ServerSessionPoolImpl pool;
     private WorkManager workManager;
     private MessageEndpointProxy messageEndpoint;
     private ActiveMQConnection con;
     private ActiveMQSession session;
     private ActiveMQEndpointWorker endpointWorker;
     private Mockery context;

     @Before
     public void setUp() throws Exception {
         context = new Mockery() {
             {
                 setImposteriser(ClassImposteriser.INSTANCE);
             }
         };

         org.apache.activemq.ActiveMQConnectionFactory factory = new org.apache.activemq.ActiveMQConnectionFactory(BROKER_URL);
         con = (ActiveMQConnection) factory.createConnection();
         con.start();
         session = (ActiveMQSession) con.createSession(false, Session.AUTO_ACKNOWLEDGE);
     }

     @After
     public void tearDown() throws Exception {
         if (con != null) {
             con.close();
         }
     }

     @Test
     public void testRunDetectsStoppedSession() throws Exception {

         pool = context.mock(ServerSessionPoolImpl.class);
         workManager = context.mock(WorkManager.class);
         messageEndpoint = context.mock(MessageEndpointProxy.class);

         serverSession = new ServerSessionImpl(pool, session, workManager, messageEndpoint, false, 10);

         con.close();
         context.checking(new Expectations() {
             {
                 oneOf(pool).removeFromPool(with(same(serverSession)));
             }
         });
         serverSession.run();
     }

     @Test
     public void testCloseCanStopActiveSession() throws Exception {

         final int maxMessages = 4000;
         final CountDownLatch messageCount = new CountDownLatch(maxMessages);

         final MessageEndpointFactory messageEndpointFactory = context.mock(MessageEndpointFactory.class);
         final MessageResourceAdapter resourceAdapter = context.mock(MessageResourceAdapter.class);
         final ActiveMQEndpointActivationKey key = context.mock(ActiveMQEndpointActivationKey.class);
         messageEndpoint = context.mock(MessageEndpointProxy.class);
         workManager = context.mock(WorkManager.class);
         final MessageActivationSpec messageActivationSpec = context.mock(MessageActivationSpec.class);
         final BootstrapContext boostrapContext = context.mock(BootstrapContext.class);
         context.checking(new Expectations() {
             {
                 allowing(boostrapContext).getWorkManager();
                 will(returnValue(workManager));
                 allowing(resourceAdapter).getBootstrapContext();
                 will(returnValue(boostrapContext));
                 allowing(messageEndpointFactory).isDeliveryTransacted(with(any(Method.class)));
                 will(returnValue(Boolean.FALSE));
                 allowing(key).getMessageEndpointFactory();
                 will(returnValue(messageEndpointFactory));
                 allowing(key).getActivationSpec();
                 will(returnValue(messageActivationSpec));
                 allowing(messageActivationSpec).isUseJndi();
                 will(returnValue(Boolean.FALSE));
                 allowing(messageActivationSpec).getDestinationType();
                 will(returnValue("javax.jms.Queue"));
                 allowing(messageActivationSpec).getDestination();
                 will(returnValue("Queue"));
                 allowing(messageActivationSpec).getAcknowledgeModeForSession();
                 will(returnValue(1));
                 allowing(messageActivationSpec).getMaxSessionsIntValue();
                 will(returnValue(1));
                 allowing(messageActivationSpec).getEnableBatchBooleanValue();
                 will(returnValue(Boolean.FALSE));
                 allowing(messageActivationSpec).isUseRAManagedTransactionEnabled();
                 will(returnValue(Boolean.TRUE));
                 allowing(messageEndpointFactory).createEndpoint(with(any(XAResource.class)));
                 will(returnValue(messageEndpoint));

                 allowing(workManager).scheduleWork((Work) with(Matchers.instanceOf(Work.class)), with(any(long.class)), with(any(ExecutionContext.class)),
                     with(any(WorkListener.class)));
                 will(new Action() {
                     @Override
                     public Object invoke(Invocation invocation) throws Throwable {
                         return null;
                     }

                     @Override
                     public void describeTo(Description description) {
                     }
                 });

                 allowing(messageEndpoint).beforeDelivery((Method) with(Matchers.instanceOf(Method.class)));
                 allowing(messageEndpoint).onMessage(with(any(javax.jms.Message.class)));
                 will(new Action() {
                     @Override
                     public Object invoke(Invocation invocation) throws Throwable {
                         messageCount.countDown();
                         if (messageCount.getCount() < maxMessages - 11) {
                             TimeUnit.MILLISECONDS.sleep(200);
                         }
                         return null;
                     }

                     @Override
                     public void describeTo(Description description) {
                         description.appendText("Keep message count");
                     }
                 });
                 allowing(messageEndpoint).afterDelivery();
                 allowing(messageEndpoint).release();

             }
         });

         endpointWorker = new ActiveMQEndpointWorker(resourceAdapter, key);
         endpointWorker.setConnection(con);
         pool = new ServerSessionPoolImpl(endpointWorker, 2);

         endpointWorker.start();
         final ServerSessionImpl serverSession1 = (ServerSessionImpl) pool.getServerSession();

         // preload the session dispatch queue to keep the session active
         ActiveMQSession session1 = (ActiveMQSession) serverSession1.getSession();
         for (int i = 0; i < maxMessages; i++) {
             MessageDispatch messageDispatch = new MessageDispatch();
             ActiveMQMessage message = new ActiveMQTextMessage();
             message.setMessageId(new MessageId("0:0:0:" + i));
             message.getMessageId().setBrokerSequenceId(i);
             messageDispatch.setMessage(message);
             messageDispatch.setConsumerId(new ConsumerId("0:0:0"));
             session1.dispatch(messageDispatch);
         }

         ExecutorService executorService = Executors.newCachedThreadPool();
         final CountDownLatch runState = new CountDownLatch(1);
         executorService.execute(new Runnable() {
             @Override
             public void run() {
                 try {
                     serverSession1.run();
                     runState.countDown();
                 } catch (Exception e) {
                     e.printStackTrace();
                 }
             }
         });

         Wait.waitFor(new Wait.Condition() {
             @Override
             public boolean isSatisified() throws Exception {
                 return messageCount.getCount() < maxMessages - 10;
             }
         });
         assertTrue("some messages consumed", messageCount.getCount() < maxMessages);
         LOG.info("Closing pool on {}", messageCount.getCount());
         pool.close();

         assertTrue("run has completed", runState.await(20, TimeUnit.SECONDS));
         assertTrue("not all messages consumed", messageCount.getCount() > 0);
     }

     @Test
     public void testGetWhenClosed() throws Exception {

         final int maxMessages = 2000;
         final AtomicReference<CountDownLatch> messageCountRef = new AtomicReference<CountDownLatch>();

         ExecutorService executorService = Executors.newCachedThreadPool();


         final MessageEndpointFactory messageEndpointFactory = context.mock(MessageEndpointFactory.class);
         final MessageResourceAdapter resourceAdapter = context.mock(MessageResourceAdapter.class);
         final ActiveMQEndpointActivationKey key = context.mock(ActiveMQEndpointActivationKey.class);
         messageEndpoint = context.mock(MessageEndpointProxy.class);
         workManager = context.mock(WorkManager.class);
         final MessageActivationSpec messageActivationSpec = context.mock(MessageActivationSpec.class);
         final BootstrapContext boostrapContext = context.mock(BootstrapContext.class);
         context.checking(new Expectations() {
             {
                 allowing(boostrapContext).getWorkManager();
                 will(returnValue(workManager));
                 allowing(resourceAdapter).getBootstrapContext();
                 will(returnValue(boostrapContext));
                 allowing(messageEndpointFactory).isDeliveryTransacted(with(any(Method.class)));
                 will(returnValue(Boolean.FALSE));
                 allowing(key).getMessageEndpointFactory();
                 will(returnValue(messageEndpointFactory));
                 allowing(key).getActivationSpec();
                 will(returnValue(messageActivationSpec));
                 allowing(messageActivationSpec).isUseJndi();
                 will(returnValue(Boolean.FALSE));
                 allowing(messageActivationSpec).getDestinationType();
                 will(returnValue("javax.jms.Queue"));
                 allowing(messageActivationSpec).getDestination();
                 will(returnValue("Queue"));
                 allowing(messageActivationSpec).getAcknowledgeModeForSession();
                 will(returnValue(1));
                 allowing(messageActivationSpec).getMaxSessionsIntValue();
                 will(returnValue(10));
                 allowing(messageActivationSpec).getEnableBatchBooleanValue();
                 will(returnValue(Boolean.FALSE));
                 allowing(messageActivationSpec).isUseRAManagedTransactionEnabled();
                 will(returnValue(Boolean.TRUE));
                 allowing(messageEndpointFactory).createEndpoint(with(any(XAResource.class)));
                 will(returnValue(messageEndpoint));

                 allowing(workManager).scheduleWork((Work) with(Matchers.instanceOf(Work.class)), with(any(long.class)), with(any(ExecutionContext.class)),
                         with(any(WorkListener.class)));
                 will(new Action() {
                     @Override
                     public Object invoke(Invocation invocation) throws Throwable {
                         LOG.info("Wok manager invocation: " + invocation);

                         if (invocation.getParameter(0) instanceof ServerSessionImpl) {
                             final ServerSessionImpl serverSession1 = (ServerSessionImpl)invocation.getParameter(0);
                             executorService.execute(new Runnable() {
                                 @Override
                                 public void run() {
                                     try {
                                         serverSession1.run();
                                     } catch (Exception e) {
                                         LOG.error("Error on Work run: {}", serverSession1, e);
                                         e.printStackTrace();
                                     }
                                 }
                             });
                         }
                         return null;
                     }

                     @Override
                     public void describeTo(Description description) {
                     }
                 });

                 allowing(messageEndpoint).beforeDelivery((Method) with(Matchers.instanceOf(Method.class)));
                 allowing(messageEndpoint).onMessage(with(any(javax.jms.Message.class)));
                 will(new Action() {
                     @Override
                     public Object invoke(Invocation invocation) throws Throwable {
                         messageCountRef.get().countDown();
                         return null;
                     }

                     @Override
                     public void describeTo(Description description) {
                         description.appendText("Keep message count");
                     }
                 });
                 allowing(messageEndpoint).afterDelivery();
                 will(new Action() {
                     @Override
                     public void describeTo(Description description) {
                         description.appendText("do sync work on broker");
                     }

                     @Override
                     public Object invoke(Invocation invocation) throws Throwable {
                         TransactionInfo transactionInfo = new TransactionInfo();
                         transactionInfo.setType(TransactionInfo.END);
                         LOG.info("AfterDelivery on: " + messageCountRef.get().getCount());
                         return null;
                     }
                 });
                 allowing(messageEndpoint).release();

             }
         });

         endpointWorker = new ActiveMQEndpointWorker(resourceAdapter, key);
         endpointWorker.setConnection(con);


         for (int i=0; i<40; i++) {
             final int iteration  = i;
             LOG.info("ITERATION: " +  iteration);
             pool = new ServerSessionPoolImpl(endpointWorker, 2);
             endpointWorker.start();

             messageCountRef.set(new CountDownLatch(maxMessages));

             final CountDownLatch senderDone = new CountDownLatch(1);
             final CountDownLatch messageSent = new CountDownLatch(maxMessages);
             final AtomicBoolean foundClosedSession = new AtomicBoolean(false);
             executorService.execute(new Runnable() {
                 @Override
                 public void run() {
                     try {
                         // preload the session dispatch queue to keep the session active

                         for (int i = 0; i < maxMessages; i++) {
                             MessageDispatch messageDispatch = new MessageDispatch();
                             ActiveMQMessage message = new ActiveMQTextMessage();
                             message.setMessageId(new MessageId("0:0:0:" + i));
                             message.getMessageId().setBrokerSequenceId(i);
                             messageDispatch.setMessage(message);
                             messageDispatch.setConsumerId(new ConsumerId("0:0:0"));
                             ServerSessionImpl serverSession1 = null;
                             try {
                                 serverSession1 = (ServerSessionImpl) pool.getServerSession();
                                 ActiveMQSession session1 = (ActiveMQSession) serverSession1.getSession();
                                 if (session1.isClosed()) {
                                     // closed flag is not volatile - ok to give a whirl with it closed
                                     foundClosedSession.set(true);
                                 }
                                 session1.dispatch(messageDispatch);
                                 messageSent.countDown();
                                 serverSession1.start();
                             } catch (JMSException okOnClose) {
                                 LOG.info("Exception on dispatch to {}", serverSession1, okOnClose);
                             }
                         }
                     } catch (Throwable e) {
                         e.printStackTrace();
                     } finally {
                         senderDone.countDown();
                     }
                 }
             });

             assertTrue("[" + iteration + "] Some messages dispatched", Wait.waitFor(new Wait.Condition() {
                 @Override
                 public boolean isSatisified() throws Exception {
                     LOG.info("[" + iteration + "] Wait before close work MessageSent: " + messageSent.getCount() + ", messages got: "+ messageCountRef.get().getCount());
                     return messageSent.getCount() < maxMessages - 20 && messageCountRef.get().getCount() < maxMessages - 5;
                 }
             }, 5000, 10));

             assertTrue("some messages consumed", messageCountRef.get().getCount() < maxMessages);

             final CountDownLatch closeDone = new CountDownLatch(1);
             final CountDownLatch closeSuccess = new CountDownLatch(1);

             executorService.execute(new Runnable() {
                 @Override
                 public void run() {
                     LOG.info("[" + iteration + "] Closing pool on delivered {} and dispatched {}", messageSent.getCount(), messageCountRef.get().getCount());
                     try {
                         pool.close();
                         closeSuccess.countDown();
                     } catch (InvalidMessageEndpointException error) {
                         LOG.error("Ex on pool close", error);
                         //error.printStackTrace();
                     } finally {
                         closeDone.countDown();
                     }
                 }
             });

             assertTrue("[" + iteration + "] Pool close does not block", closeDone.await(10, TimeUnit.SECONDS));
             assertTrue("[" + iteration + "] Pool close ok", closeSuccess.await(10, TimeUnit.MILLISECONDS));

             assertTrue("[" + iteration + "] sender complete", senderDone.await(30, TimeUnit.SECONDS));
         }
     }


     @Test
     public void testSessionReusedByPool() throws Exception {

         final MessageEndpointFactory messageEndpointFactory = context.mock(MessageEndpointFactory.class);
         final MessageResourceAdapter resourceAdapter = context.mock(MessageResourceAdapter.class);
         final ActiveMQEndpointActivationKey key = context.mock(ActiveMQEndpointActivationKey.class);
         messageEndpoint = context.mock(MessageEndpointProxy.class);
         workManager = context.mock(WorkManager.class);
         final MessageActivationSpec messageActivationSpec = context.mock(MessageActivationSpec.class);
         final BootstrapContext bootstrapContext = context.mock(BootstrapContext.class);
         context.checking(new Expectations() {
             {
                 allowing(bootstrapContext).getWorkManager();
                 will(returnValue(workManager));
                 allowing(resourceAdapter).getBootstrapContext();
                 will(returnValue(bootstrapContext));
                 allowing(messageEndpointFactory).isDeliveryTransacted(with(any(Method.class)));
                 will(returnValue(Boolean.FALSE));
                 allowing(key).getMessageEndpointFactory();
                 will(returnValue(messageEndpointFactory));
                 allowing(key).getActivationSpec();
                 will(returnValue(messageActivationSpec));
                 allowing(messageActivationSpec).isUseJndi();
                 will(returnValue(Boolean.FALSE));
                 allowing(messageActivationSpec).getDestinationType();
                 will(returnValue("javax.jms.Queue"));
                 allowing(messageActivationSpec).getDestination();
                 will(returnValue("Queue"));
                 allowing(messageActivationSpec).getAcknowledgeModeForSession();
                 will(returnValue(1));
                 allowing(messageActivationSpec).getMaxSessionsIntValue();
                 will(returnValue(10));
                 allowing(messageActivationSpec).getEnableBatchBooleanValue();
                 will(returnValue(Boolean.FALSE));
                 allowing(messageActivationSpec).isUseRAManagedTransactionEnabled();
                 will(returnValue(Boolean.TRUE));
                 allowing(messageEndpointFactory).createEndpoint(with(any(XAResource.class)));
                 will(returnValue(messageEndpoint));

                 allowing(workManager).scheduleWork((Work) with(Matchers.instanceOf(Work.class)), with(any(long.class)), with(any(ExecutionContext.class)),
                         with(any(WorkListener.class)));
                 allowing(messageEndpoint).release();
             }
         });

         endpointWorker = new ActiveMQEndpointWorker(resourceAdapter, key);
         endpointWorker.setConnection(con);

         pool = new ServerSessionPoolImpl(endpointWorker, 2);
         endpointWorker.start();

         // the test!
         ServerSessionImpl first = (ServerSessionImpl) pool.getServerSession();
         pool.returnToPool(first);

         ServerSessionImpl reused = (ServerSessionImpl) pool.getServerSession();
         assertEquals("got reuse", first, reused);
     }
 }
	/**
	* Licensed to the Apache Software Foundation (ASF) under one or more
	* contributor license agreements. See the NOTICE file distributed with
	* this work for additional information regarding copyright ownership.
	* The ASF licenses this file to You under the Apache License, Version 2.0
	* (the "License"); you may not use this file except in compliance with
	* the License. You may obtain a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing, software
	* distributed under the License is distributed on an "AS IS" BASIS,
	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	* See the License for the specific language governing permissions and
	* limitations under the License.
	*/
	package org.apache.activemq.ra;

	import org.apache.activemq.ActiveMQConnection;
	import org.apache.activemq.ActiveMQSession;
	import org.apache.activemq.command.ActiveMQMessage;
	import org.apache.activemq.command.ActiveMQTextMessage;
	import org.apache.activemq.command.ConsumerId;
	import org.apache.activemq.command.MessageDispatch;
	import org.apache.activemq.command.MessageId;
	import org.apache.activemq.command.TransactionInfo;
	import org.apache.activemq.util.Wait;
	import org.hamcrest.Description;
	import org.hamcrest.Matchers;
	import org.jmock.Expectations;
	import org.jmock.Mockery;
	import org.jmock.api.Action;
	import org.jmock.api.Invocation;
	import org.jmock.integration.junit4.JMock;
	import org.jmock.lib.legacy.ClassImposteriser;
	import org.junit.After;
	import org.junit.Before;
	import org.junit.Test;
	import org.junit.runner.RunWith;
	import org.slf4j.Logger;
	import org.slf4j.LoggerFactory;

	import javax.jms.JMSException;
	import javax.jms.Session;
	import javax.resource.spi.BootstrapContext;
	import javax.resource.spi.endpoint.MessageEndpointFactory;
	import javax.resource.spi.work.ExecutionContext;
	import javax.resource.spi.work.Work;
	import javax.resource.spi.work.WorkListener;
	import javax.resource.spi.work.WorkManager;
	import javax.transaction.xa.XAResource;
	import java.lang.reflect.Method;
	import java.util.concurrent.CountDownLatch;
	import java.util.concurrent.ExecutorService;
	import java.util.concurrent.Executors;
	import java.util.concurrent.TimeUnit;
	import java.util.concurrent.atomic.AtomicBoolean;
	import java.util.concurrent.atomic.AtomicReference;

	import static org.junit.Assert.assertEquals;
	import static org.junit.Assert.assertTrue;

	@RunWith(JMock.class)
	public class ServerSessionImplTest {

	private static final Logger LOG = LoggerFactory.getLogger(ServerSessionImplTest.class);
	private static final String BROKER_URL = "vm://localhost?broker.persistent=false";

	private ServerSessionImpl serverSession;
	private ServerSessionPoolImpl pool;
	private WorkManager workManager;
	private MessageEndpointProxy messageEndpoint;
	private ActiveMQConnection con;
	private ActiveMQSession session;
	private ActiveMQEndpointWorker endpointWorker;
	private Mockery context;

	@Before
	public void setUp() throws Exception {
	context = new Mockery() {
	{
	setImposteriser(ClassImposteriser.INSTANCE);
	}
	};

	org.apache.activemq.ActiveMQConnectionFactory factory = new org.apache.activemq.ActiveMQConnectionFactory(BROKER_URL);
	con = (ActiveMQConnection) factory.createConnection();
	con.start();
	session = (ActiveMQSession) con.createSession(false, Session.AUTO_ACKNOWLEDGE);
	}

	@After
	public void tearDown() throws Exception {
	if (con != null) {
	con.close();
	}
	}

	@Test
	public void testRunDetectsStoppedSession() throws Exception {

	pool = context.mock(ServerSessionPoolImpl.class);
	workManager = context.mock(WorkManager.class);
	messageEndpoint = context.mock(MessageEndpointProxy.class);

	serverSession = new ServerSessionImpl(pool, session, workManager, messageEndpoint, false, 10);

	con.close();
	context.checking(new Expectations() {
	{
	oneOf(pool).removeFromPool(with(same(serverSession)));
	}
	});
	serverSession.run();
	}

	@Test
	public void testCloseCanStopActiveSession() throws Exception {

	final int maxMessages = 4000;
	final CountDownLatch messageCount = new CountDownLatch(maxMessages);

	final MessageEndpointFactory messageEndpointFactory = context.mock(MessageEndpointFactory.class);
	final MessageResourceAdapter resourceAdapter = context.mock(MessageResourceAdapter.class);
	final ActiveMQEndpointActivationKey key = context.mock(ActiveMQEndpointActivationKey.class);
	messageEndpoint = context.mock(MessageEndpointProxy.class);
	workManager = context.mock(WorkManager.class);
	final MessageActivationSpec messageActivationSpec = context.mock(MessageActivationSpec.class);
	final BootstrapContext boostrapContext = context.mock(BootstrapContext.class);
	context.checking(new Expectations() {
	{
	allowing(boostrapContext).getWorkManager();
	will(returnValue(workManager));
	allowing(resourceAdapter).getBootstrapContext();
	will(returnValue(boostrapContext));
	allowing(messageEndpointFactory).isDeliveryTransacted(with(any(Method.class)));
	will(returnValue(Boolean.FALSE));
	allowing(key).getMessageEndpointFactory();
	will(returnValue(messageEndpointFactory));
	allowing(key).getActivationSpec();
	will(returnValue(messageActivationSpec));
	allowing(messageActivationSpec).isUseJndi();
	will(returnValue(Boolean.FALSE));
	allowing(messageActivationSpec).getDestinationType();
	will(returnValue("javax.jms.Queue"));
	allowing(messageActivationSpec).getDestination();
	will(returnValue("Queue"));
	allowing(messageActivationSpec).getAcknowledgeModeForSession();
	will(returnValue(1));
	allowing(messageActivationSpec).getMaxSessionsIntValue();
	will(returnValue(1));
	allowing(messageActivationSpec).getEnableBatchBooleanValue();
	will(returnValue(Boolean.FALSE));
	allowing(messageActivationSpec).isUseRAManagedTransactionEnabled();
	will(returnValue(Boolean.TRUE));
	allowing(messageEndpointFactory).createEndpoint(with(any(XAResource.class)));
	will(returnValue(messageEndpoint));

	allowing(workManager).scheduleWork((Work) with(Matchers.instanceOf(Work.class)), with(any(long.class)), with(any(ExecutionContext.class)),
	with(any(WorkListener.class)));
	will(new Action() {
	@Override
	public Object invoke(Invocation invocation) throws Throwable {
	return null;
	}

	@Override
	public void describeTo(Description description) {
	}
	});

	allowing(messageEndpoint).beforeDelivery((Method) with(Matchers.instanceOf(Method.class)));
	allowing(messageEndpoint).onMessage(with(any(javax.jms.Message.class)));
	will(new Action() {
	@Override
	public Object invoke(Invocation invocation) throws Throwable {
	messageCount.countDown();
	if (messageCount.getCount() < maxMessages - 11) {
	TimeUnit.MILLISECONDS.sleep(200);
	}
	return null;
	}

	@Override
	public void describeTo(Description description) {
	description.appendText("Keep message count");
	}
	});
	allowing(messageEndpoint).afterDelivery();
	allowing(messageEndpoint).release();

	}
	});

	endpointWorker = new ActiveMQEndpointWorker(resourceAdapter, key);
	endpointWorker.setConnection(con);
	pool = new ServerSessionPoolImpl(endpointWorker, 2);

	endpointWorker.start();
	final ServerSessionImpl serverSession1 = (ServerSessionImpl) pool.getServerSession();

	// preload the session dispatch queue to keep the session active
	ActiveMQSession session1 = (ActiveMQSession) serverSession1.getSession();
	for (int i = 0; i < maxMessages; i++) {
	MessageDispatch messageDispatch = new MessageDispatch();
	ActiveMQMessage message = new ActiveMQTextMessage();
	message.setMessageId(new MessageId("0:0:0:" + i));
	message.getMessageId().setBrokerSequenceId(i);
	messageDispatch.setMessage(message);
	messageDispatch.setConsumerId(new ConsumerId("0:0:0"));
	session1.dispatch(messageDispatch);
	}

	ExecutorService executorService = Executors.newCachedThreadPool();
	final CountDownLatch runState = new CountDownLatch(1);
	executorService.execute(new Runnable() {
	@Override
	public void run() {
	try {
	serverSession1.run();
	runState.countDown();
	} catch (Exception e) {
	e.printStackTrace();
	}
	}
	});

	Wait.waitFor(new Wait.Condition() {
	@Override
	public boolean isSatisified() throws Exception {
	return messageCount.getCount() < maxMessages - 10;
	}
	});
	assertTrue("some messages consumed", messageCount.getCount() < maxMessages);
	LOG.info("Closing pool on {}", messageCount.getCount());
	pool.close();

	assertTrue("run has completed", runState.await(20, TimeUnit.SECONDS));
	assertTrue("not all messages consumed", messageCount.getCount() > 0);
	}

	@Test
	public void testGetWhenClosed() throws Exception {

	final int maxMessages = 2000;
	final AtomicReference<CountDownLatch> messageCountRef = new AtomicReference<CountDownLatch>();

	ExecutorService executorService = Executors.newCachedThreadPool();


	final MessageEndpointFactory messageEndpointFactory = context.mock(MessageEndpointFactory.class);
	final MessageResourceAdapter resourceAdapter = context.mock(MessageResourceAdapter.class);
	final ActiveMQEndpointActivationKey key = context.mock(ActiveMQEndpointActivationKey.class);
	messageEndpoint = context.mock(MessageEndpointProxy.class);
	workManager = context.mock(WorkManager.class);
	final MessageActivationSpec messageActivationSpec = context.mock(MessageActivationSpec.class);
	final BootstrapContext boostrapContext = context.mock(BootstrapContext.class);
	context.checking(new Expectations() {
	{
	allowing(boostrapContext).getWorkManager();
	will(returnValue(workManager));
	allowing(resourceAdapter).getBootstrapContext();
	will(returnValue(boostrapContext));
	allowing(messageEndpointFactory).isDeliveryTransacted(with(any(Method.class)));
	will(returnValue(Boolean.FALSE));
	allowing(key).getMessageEndpointFactory();
	will(returnValue(messageEndpointFactory));
	allowing(key).getActivationSpec();
	will(returnValue(messageActivationSpec));
	allowing(messageActivationSpec).isUseJndi();
	will(returnValue(Boolean.FALSE));
	allowing(messageActivationSpec).getDestinationType();
	will(returnValue("javax.jms.Queue"));
	allowing(messageActivationSpec).getDestination();
	will(returnValue("Queue"));
	allowing(messageActivationSpec).getAcknowledgeModeForSession();
	will(returnValue(1));
	allowing(messageActivationSpec).getMaxSessionsIntValue();
	will(returnValue(10));
	allowing(messageActivationSpec).getEnableBatchBooleanValue();
	will(returnValue(Boolean.FALSE));
	allowing(messageActivationSpec).isUseRAManagedTransactionEnabled();
	will(returnValue(Boolean.TRUE));
	allowing(messageEndpointFactory).createEndpoint(with(any(XAResource.class)));
	will(returnValue(messageEndpoint));

	allowing(workManager).scheduleWork((Work) with(Matchers.instanceOf(Work.class)), with(any(long.class)), with(any(ExecutionContext.class)),
	with(any(WorkListener.class)));
	will(new Action() {
	@Override
	public Object invoke(Invocation invocation) throws Throwable {
	LOG.info("Wok manager invocation: " + invocation);

	if (invocation.getParameter(0) instanceof ServerSessionImpl) {
	final ServerSessionImpl serverSession1 = (ServerSessionImpl)invocation.getParameter(0);
	executorService.execute(new Runnable() {
	@Override
	public void run() {
	try {
	serverSession1.run();
	} catch (Exception e) {
	LOG.error("Error on Work run: {}", serverSession1, e);
	e.printStackTrace();
	}
	}
	});
	}
	return null;
	}

	@Override
	public void describeTo(Description description) {
	}
	});

	allowing(messageEndpoint).beforeDelivery((Method) with(Matchers.instanceOf(Method.class)));
	allowing(messageEndpoint).onMessage(with(any(javax.jms.Message.class)));
	will(new Action() {
	@Override
	public Object invoke(Invocation invocation) throws Throwable {
	messageCountRef.get().countDown();
	return null;
	}

	@Override
	public void describeTo(Description description) {
	description.appendText("Keep message count");
	}
	});
	allowing(messageEndpoint).afterDelivery();
	will(new Action() {
	@Override
	public void describeTo(Description description) {
	description.appendText("do sync work on broker");
	}

	@Override
	public Object invoke(Invocation invocation) throws Throwable {
	TransactionInfo transactionInfo = new TransactionInfo();
	transactionInfo.setType(TransactionInfo.END);
	LOG.info("AfterDelivery on: " + messageCountRef.get().getCount());
	return null;
	}
	});
	allowing(messageEndpoint).release();

	}
	});

	endpointWorker = new ActiveMQEndpointWorker(resourceAdapter, key);
	endpointWorker.setConnection(con);


	for (int i=0; i<40; i++) {
	final int iteration = i;
	LOG.info("ITERATION: " + iteration);
	pool = new ServerSessionPoolImpl(endpointWorker, 2);
	endpointWorker.start();

	messageCountRef.set(new CountDownLatch(maxMessages));

	final CountDownLatch senderDone = new CountDownLatch(1);
	final CountDownLatch messageSent = new CountDownLatch(maxMessages);
	final AtomicBoolean foundClosedSession = new AtomicBoolean(false);
	executorService.execute(new Runnable() {
	@Override
	public void run() {
	try {
	// preload the session dispatch queue to keep the session active

	for (int i = 0; i < maxMessages; i++) {
	MessageDispatch messageDispatch = new MessageDispatch();
	ActiveMQMessage message = new ActiveMQTextMessage();
	message.setMessageId(new MessageId("0:0:0:" + i));
	message.getMessageId().setBrokerSequenceId(i);
	messageDispatch.setMessage(message);
	messageDispatch.setConsumerId(new ConsumerId("0:0:0"));
	ServerSessionImpl serverSession1 = null;
	try {
	serverSession1 = (ServerSessionImpl) pool.getServerSession();
	ActiveMQSession session1 = (ActiveMQSession) serverSession1.getSession();
	if (session1.isClosed()) {
	// closed flag is not volatile - ok to give a whirl with it closed
	foundClosedSession.set(true);
	}
	session1.dispatch(messageDispatch);
	messageSent.countDown();
	serverSession1.start();
	} catch (JMSException okOnClose) {
	LOG.info("Exception on dispatch to {}", serverSession1, okOnClose);
	}
	}
	} catch (Throwable e) {
	e.printStackTrace();
	} finally {
	senderDone.countDown();
	}
	}
	});

	assertTrue("[" + iteration + "] Some messages dispatched", Wait.waitFor(new Wait.Condition() {
	@Override
	public boolean isSatisified() throws Exception {
	LOG.info("[" + iteration + "] Wait before close work MessageSent: " + messageSent.getCount() + ", messages got: "+ messageCountRef.get().getCount());
	return messageSent.getCount() < maxMessages - 20 && messageCountRef.get().getCount() < maxMessages - 5;
	}
	}, 5000, 10));

	assertTrue("some messages consumed", messageCountRef.get().getCount() < maxMessages);

	final CountDownLatch closeDone = new CountDownLatch(1);
	final CountDownLatch closeSuccess = new CountDownLatch(1);

	executorService.execute(new Runnable() {
	@Override
	public void run() {
	LOG.info("[" + iteration + "] Closing pool on delivered {} and dispatched {}", messageSent.getCount(), messageCountRef.get().getCount());
	try {
	pool.close();
	closeSuccess.countDown();
	} catch (InvalidMessageEndpointException error) {
	LOG.error("Ex on pool close", error);
	//error.printStackTrace();
	} finally {
	closeDone.countDown();
	}
	}
	});

	assertTrue("[" + iteration + "] Pool close does not block", closeDone.await(10, TimeUnit.SECONDS));
	assertTrue("[" + iteration + "] Pool close ok", closeSuccess.await(10, TimeUnit.MILLISECONDS));

	assertTrue("[" + iteration + "] sender complete", senderDone.await(30, TimeUnit.SECONDS));
	}
	}



	@Test
	public void testSessionReusedByPool() throws Exception {

	final MessageEndpointFactory messageEndpointFactory = context.mock(MessageEndpointFactory.class);
	final MessageResourceAdapter resourceAdapter = context.mock(MessageResourceAdapter.class);
	final ActiveMQEndpointActivationKey key = context.mock(ActiveMQEndpointActivationKey.class);
	messageEndpoint = context.mock(MessageEndpointProxy.class);
	workManager = context.mock(WorkManager.class);
	final MessageActivationSpec messageActivationSpec = context.mock(MessageActivationSpec.class);
	final BootstrapContext bootstrapContext = context.mock(BootstrapContext.class);
	context.checking(new Expectations() {
	{
	allowing(bootstrapContext).getWorkManager();
	will(returnValue(workManager));
	allowing(resourceAdapter).getBootstrapContext();
	will(returnValue(bootstrapContext));
	allowing(messageEndpointFactory).isDeliveryTransacted(with(any(Method.class)));
	will(returnValue(Boolean.FALSE));
	allowing(key).getMessageEndpointFactory();
	will(returnValue(messageEndpointFactory));
	allowing(key).getActivationSpec();
	will(returnValue(messageActivationSpec));
	allowing(messageActivationSpec).isUseJndi();
	will(returnValue(Boolean.FALSE));
	allowing(messageActivationSpec).getDestinationType();
	will(returnValue("javax.jms.Queue"));
	allowing(messageActivationSpec).getDestination();
	will(returnValue("Queue"));
	allowing(messageActivationSpec).getAcknowledgeModeForSession();
	will(returnValue(1));
	allowing(messageActivationSpec).getMaxSessionsIntValue();
	will(returnValue(10));
	allowing(messageActivationSpec).getEnableBatchBooleanValue();
	will(returnValue(Boolean.FALSE));
	allowing(messageActivationSpec).isUseRAManagedTransactionEnabled();
	will(returnValue(Boolean.TRUE));
	allowing(messageEndpointFactory).createEndpoint(with(any(XAResource.class)));
	will(returnValue(messageEndpoint));

	allowing(workManager).scheduleWork((Work) with(Matchers.instanceOf(Work.class)), with(any(long.class)), with(any(ExecutionContext.class)),
	with(any(WorkListener.class)));
	allowing(messageEndpoint).release();
	}
	});

	endpointWorker = new ActiveMQEndpointWorker(resourceAdapter, key);
	endpointWorker.setConnection(con);

	pool = new ServerSessionPoolImpl(endpointWorker, 2);
	endpointWorker.start();

	// the test!
	ServerSessionImpl first = (ServerSessionImpl) pool.getServerSession();
	pool.returnToPool(first);

	ServerSessionImpl reused = (ServerSessionImpl) pool.getServerSession();
	assertEquals("got reuse", first, reused);
	}
	}