This closes #127

activemq-broker/src/main/java/org/apache/activemq/broker/region/PrefetchSubscription.java

@@ -658,7 +658,10 @@ public abstract class PrefetchSubscription extends AbstractSubscription {
                                     if (broker.isExpired(node)) {
                                         ((Destination)node.getRegionDestination()).messageExpired(context, this, node);
                                     }
-                                    continue;
+                                    //AMQ-5340
+                                    if (!isBrowser()) {
+                                        continue;
+                                    }
                                 }
                                 dispatch(node);
                                 count++;

activemq-client/src/main/java/org/apache/activemq/ActiveMQMessageConsumer.java

@@ -492,7 +492,8 @@ public class ActiveMQMessageConsumer implements MessageAvailableConsumer, StatsC
                     }
                 } else if (md.getMessage() == null) {
                     return null;
-                } else if (isConsumerExpiryCheckEnabled() && md.getMessage().isExpired()) {
+                //AMQ-5340 - only check for expired if not a browser
+                } else if (!isBrowser() && isConsumerExpiryCheckEnabled() && md.getMessage().isExpired()) {
                     if (LOG.isDebugEnabled()) {
                         LOG.debug(getConsumerId() + " received expired message: " + md);
                     }

activemq-unit-tests/src/test/java/org/apache/activemq/JmsQueueBrowserExpirationTest.java

@@ -0,0 +1,153 @@
+/**
+ * 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;
+
+import static org.junit.Assert.assertEquals;
+
+import java.net.URI;
+import java.util.Enumeration;
+import java.util.concurrent.TimeUnit;
+
+import javax.jms.Connection;
+import javax.jms.DeliveryMode;
+import javax.jms.JMSException;
+import javax.jms.MessageProducer;
+import javax.jms.QueueBrowser;
+import javax.jms.Session;
+import javax.jms.TextMessage;
+
+import org.apache.activemq.broker.BrokerService;
+import org.apache.activemq.broker.TransportConnector;
+import org.apache.activemq.command.ActiveMQQueue;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * This test shows that when all messages are expired the QueueBrowser will
+ * still finish properly and not hang indefinitely.  If a queue browser subscription
+ * detects an expired message, it will tell the broker to expire the message but still
+ * dispatch the message to the client as we want to get a snapshot in time.  This prevents
+ * the problem of the browser enumeration returning true for hasMoreElements and then
+ * hanging forever because all messages expired on dispatch.
+ *
+ * See: https://issues.apache.org/jira/browse/AMQ-5340
+ *
+ * <p>
+ * This test is based on a test case submitted by Henno Vermeulen for AMQ-5340
+ */
+public class JmsQueueBrowserExpirationTest {
+
+    private static final int MESSAGES_TO_SEND = 50;
+    // Message expires after 1 second
+    private static final long TTL = 1000;
+
+    private static final Logger LOG = LoggerFactory
+            .getLogger(JmsQueueBrowserExpirationTest.class);
+
+    private BrokerService broker;
+    private URI connectUri;
+    private ActiveMQConnectionFactory factory;
+    private final ActiveMQQueue queue = new ActiveMQQueue("TEST");
+
+    @Before
+    public void startBroker() throws Exception {
+        broker = new BrokerService();
+        broker.setPersistent(false);
+
+        TransportConnector connector = broker.addConnector("vm://localhost");
+        broker.deleteAllMessages();
+        broker.start();
+        broker.waitUntilStarted();
+        connectUri = connector.getConnectUri();
+        factory = new ActiveMQConnectionFactory(connectUri);
+    }
+
+    @After
+    public void stopBroker() throws Exception {
+        broker.stop();
+        broker.waitUntilStopped();
+    }
+
+    //This should finish in under 3 seconds because the messages should be expired
+    @Test(timeout=3000)
+    public void testBrowsingExpiration() throws JMSException, InterruptedException {
+
+        sendTestMessages();
+
+        // Browse the queue.
+        Connection browserConnection = factory.createConnection();
+        browserConnection.start();
+
+        int browsed = browse(queue, browserConnection);
+
+        // The number of messages browsed should be equal to the number of
+        // messages sent.
+        assertEquals(MESSAGES_TO_SEND, browsed);
+
+        long begin = System.nanoTime();
+        while (browsed != 0) {
+            // Give JMS threads more opportunity to do their work.
+            Thread.sleep(100);
+            browsed = browse(queue, browserConnection);
+            String time =
+                    TimeUnit.NANOSECONDS.toMillis(System.nanoTime() - begin)
+                            + " ms";
+            System.out.println("[" + time + "] found " + browsed + " messages");
+        }
+        System.out.println("Finished");
+        browserConnection.close();
+    }
+
+    private int browse(ActiveMQQueue queue, Connection connection)
+            throws JMSException {
+        Session session =
+                connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
+        QueueBrowser browser = session.createBrowser(queue);
+        Enumeration<?> enumeration = browser.getEnumeration();
+        int browsed = 0;
+        while (enumeration.hasMoreElements()) {
+            TextMessage m = (TextMessage) enumeration.nextElement();
+            browsed++;
+            LOG.debug("B[{}]: {}", browsed, m.getText());
+        }
+        browser.close();
+        session.close();
+        return browsed;
+    }
+
+    protected void sendTestMessages() throws JMSException {
+        // Send the messages to the Queue.
+        Connection prodConnection = factory.createConnection();
+        prodConnection.start();
+        Session prodSession = prodConnection.createSession(false, Session.AUTO_ACKNOWLEDGE);
+        MessageProducer producer = prodSession.createProducer(queue);
+        producer.setDeliveryMode(DeliveryMode.NON_PERSISTENT);
+        producer.setTimeToLive(TTL);
+
+        for (int i = 1; i <= MESSAGES_TO_SEND; i++) {
+            String msgStr = "Message: " + i;
+            producer.send(prodSession.createTextMessage(msgStr));
+            LOG.info("P&C: {}", msgStr);
+        }
+        prodSession.close();
+    }
+
+
+}