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https://issues.apache.org/jira/browse/AMQ-4092 - add unit test that reproduced
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/**
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.apache.activemq.bugs;
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import java.util.HashMap;
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import java.util.concurrent.CountDownLatch;
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import java.util.concurrent.ExecutorService;
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import java.util.concurrent.Executors;
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import java.util.concurrent.TimeUnit;
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import java.util.concurrent.atomic.AtomicInteger;
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import javax.jms.Connection;
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import javax.jms.DeliveryMode;
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import javax.jms.ExceptionListener;
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import javax.jms.JMSException;
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import javax.jms.Message;
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import javax.jms.MessageConsumer;
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import javax.jms.MessageListener;
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import javax.jms.MessageProducer;
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import javax.jms.Session;
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import javax.jms.TextMessage;
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import junit.framework.TestCase;
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import org.apache.activemq.ActiveMQConnectionFactory;
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import org.apache.activemq.broker.BrokerService;
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import org.apache.activemq.command.ActiveMQQueue;
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import org.apache.activemq.store.kahadb.KahaDBPersistenceAdapter;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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public class AMQ4092Test extends TestCase {
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private static final Logger log = LoggerFactory.getLogger(AMQ4092Test.class);
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static final String QUEUE_NAME = "TEST";
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// increase limits to expedite failure
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static final int NUM_TO_SEND_PER_PRODUCER = 1000; // 10000
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static final int NUM_PRODUCERS = 5; // 40
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static final ActiveMQQueue[] DESTINATIONS = new ActiveMQQueue[]{
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new ActiveMQQueue("A"),
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new ActiveMQQueue("B")
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// A/B seems to be sufficient for concurrentStoreAndDispatch=true
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};
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static final boolean debug = false;
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private BrokerService brokerService;
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private ActiveMQQueue destination;
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private HashMap<Thread, Throwable> exceptions = new HashMap<Thread, Throwable>();
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private ExceptionListener exceptionListener = new ExceptionListener() {
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@Override
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public void onException(JMSException exception) {
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exception.printStackTrace();
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exceptions.put(Thread.currentThread(), exception);
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}
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};
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@Override
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protected void setUp() throws Exception {
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brokerService = new BrokerService();
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brokerService.setDeleteAllMessagesOnStartup(true);
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((KahaDBPersistenceAdapter)brokerService.getPersistenceAdapter()).setConcurrentStoreAndDispatchQueues(false);
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brokerService.addConnector("tcp://localhost:0");
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brokerService.start();
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destination = new ActiveMQQueue();
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destination.setCompositeDestinations(DESTINATIONS);
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Thread.setDefaultUncaughtExceptionHandler(new Thread.UncaughtExceptionHandler() {
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@Override
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public void uncaughtException(Thread t, Throwable e) {
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exceptions.put(t, e);
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}
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});
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}
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@Override
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protected void tearDown() throws Exception {
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// Stop any running threads.
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brokerService.stop();
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}
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public void testConcurrentGroups() throws Exception {
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ExecutorService executorService = Executors.newCachedThreadPool();
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executorService.submit(new TestConsumer());
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for (int i=0; i<NUM_PRODUCERS; i++) {
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executorService.submit(new TestProducer());
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}
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executorService.shutdown();
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executorService.awaitTermination(5, TimeUnit.MINUTES);
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assertTrue("no exceptions: " + exceptions, exceptions.isEmpty());
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}
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class TestProducer implements Runnable {
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public void produceMessages() throws Exception {
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ActiveMQConnectionFactory connectionFactory = new ActiveMQConnectionFactory(
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brokerService.getTransportConnectors().get(0).getConnectUri().toString()
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);
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connectionFactory.setExceptionListener(exceptionListener);
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connectionFactory.setUseAsyncSend(true);
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Connection connection = connectionFactory.createConnection();
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Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
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MessageProducer producer = session.createProducer(destination);
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producer.setDeliveryMode(DeliveryMode.PERSISTENT);
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String name = new String(new byte[2*1024]);
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for (int i = 1; i <= NUM_TO_SEND_PER_PRODUCER; i++) {
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TextMessage message = session.createTextMessage(name + "_" + i);
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for (int j=0; j<100; j++) {
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message.setStringProperty("Prop" + j, ""+j);
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}
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message.setStringProperty("JMSXGroupID", Thread.currentThread().getName()+i);
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message.setIntProperty("JMSXGroupSeq", 1);
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producer.send(message);
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}
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producer.close();
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session.close();
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connection.close();
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}
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@Override
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public void run() {
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try {
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produceMessages();
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} catch (Exception e) {
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e.printStackTrace();
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exceptions.put(Thread.currentThread(), e);
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}
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}
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}
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class TestConsumer implements Runnable {
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private CountDownLatch finishLatch = new CountDownLatch(1);
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public void consume() throws Exception {
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ActiveMQConnectionFactory connectionFactory = new ActiveMQConnectionFactory(
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brokerService.getTransportConnectors().get(0).getConnectUri().toString()
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);
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connectionFactory.setExceptionListener(exceptionListener);
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final int totalMessageCount = NUM_TO_SEND_PER_PRODUCER * DESTINATIONS.length * NUM_PRODUCERS;
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final AtomicInteger counter = new AtomicInteger();
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final MessageListener listener = new MessageListener() {
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public void onMessage(Message message) {
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if (debug) {
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try {
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log.info(((TextMessage) message).getText());
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} catch (JMSException e) {
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e.printStackTrace();
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}
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}
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boolean first = false;
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try {
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first = message.getBooleanProperty("JMSXGroupFirstForConsumer");
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} catch (JMSException e) {
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e.printStackTrace();
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exceptions.put(Thread.currentThread(), e);
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}
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assertTrue("Always is first message", first);
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if (counter.incrementAndGet() == totalMessageCount) {
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log.info("Got all:" + counter.get());
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finishLatch.countDown();
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}
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}
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};
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int consumerCount = DESTINATIONS.length * 100;
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Connection[] connections = new Connection[consumerCount];
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Session[] sessions = new Session[consumerCount];
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MessageConsumer[] consumers = new MessageConsumer[consumerCount];
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for (int i = 0; i < consumerCount; i++) {
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connections[i] = connectionFactory.createConnection();
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connections[i].start();
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sessions[i] = connections[i].createSession(false, Session.AUTO_ACKNOWLEDGE);
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consumers[i] = sessions[i].createConsumer(DESTINATIONS[i%DESTINATIONS.length], null);
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consumers[i].setMessageListener(listener);
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}
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log.info("received " + counter.get() + " messages");
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assertTrue("got all messages in time", finishLatch.await(4, TimeUnit.MINUTES));
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log.info("received " + counter.get() + " messages");
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for (MessageConsumer consumer : consumers) {
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consumer.close();
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}
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for (Session session : sessions) {
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session.close();
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}
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for (Connection connection : connections) {
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connection.close();
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}
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}
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@Override
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public void run() {
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try {
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consume();
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} catch (Exception e) {
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e.printStackTrace();
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exceptions.put(Thread.currentThread(), e);
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}
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}
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}
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}
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