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+/*
+ *
+ * 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.qpid.test.unit.close;
+
+import org.apache.qpid.client.AMQConnection;
+import org.apache.qpid.client.AMQDestination;
+import org.apache.qpid.client.AMQSession;
+import org.apache.qpid.framing.AMQFrame;
+import org.apache.qpid.framing.AMQShortString;
+import org.apache.qpid.framing.ExchangeDeclareBody;
+import org.apache.qpid.framing.ExchangeDeclareOkBody;
+import org.apache.qpid.test.utils.QpidBrokerTestCase;
+
+import javax.jms.Session;
+
+/** QPID-1809
+ *
+ * Race condition on error handling and close logic.
+ *
+ * See most often with SimpleACLTest as this test is the expects the server to
+ * shut the connection/channels. This sort of testing is not performed by many,
+ * if any, of the other system tests.
+ *
+ * The problem is that we have two threads
+ *
+ * MainThread Exception(Mina)Thread
+ * | |
+ * Performs |
+ * ACtion |
+ * | Receives Server
+ * | Close
+ * Blocks for |
+ * Response |
+ * | Starts To Notify
+ * | client
+ * | |
+ * | <----- Notify Main Thread
+ * Notification |
+ * wakes client |
+ * | |
+ * Client then |
+ * processes Error. |
+ * | |
+ * Potentially Attempting Close Channel/Connection
+ * Connection Close
+ *
+ * The two threads both attempt to close the connection but the main thread does
+ * so assuming that the connection is open and valid.
+ *
+ * The Exception thread must modify the connection so that no furter syncWait
+ * commands are performed.
+ *
+ * This test sends an ExchangeDeclare that is Asynchronous and will fail and
+ * so cause a ChannelClose error but we perform a syncWait so that we can be
+ * sure to test that the BlockingWaiter is correctly awoken.
+ *
+ */
+public class JavaServerCloseRaceConditionTest extends QpidBrokerTestCase
+{
+ private static final String EXCHANGE_NAME = "NewExchangeNametoFailLookup";
+
+ public void test() throws Exception
+ {
+
+ AMQConnection connection = (AMQConnection) getConnection();
+
+ AMQSession session = (AMQSession) connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
+
+ // Set no wait true so that we block the connection
+ // Also set a different exchange class string so the attempt to declare
+ // the exchange causes an exchange.
+ ExchangeDeclareBody body = session.getMethodRegistry().createExchangeDeclareBody(session.getTicket(), new AMQShortString(EXCHANGE_NAME), null,
+ true, false, false, false, true, null);
+
+ AMQFrame exchangeDeclare = body.generateFrame(session.getChannelId());
+
+ try
+ {
+ // block our thread so that can times out
+ connection.getProtocolHandler().syncWrite(exchangeDeclare, ExchangeDeclareOkBody.class);
+ }
+ catch (Exception e)
+ {
+ assertTrue("Exception should say the exchange is not known.", e.getMessage().contains("Unknown exchange: " + EXCHANGE_NAME));
+ }
+
+ try
+ {
+ // Depending on if the notification thread has closed the connection
+ // or not we may get an exception here when we attempt to close the
+ // connection. If we do get one then it should be the same as above
+ // an AMQAuthenticationException.
+ connection.close();
+ }
+ catch (Exception e)
+ {
+ assertTrue("Exception should say the exchange is not known.", e.getMessage().contains("Unknown exchange: " + EXCHANGE_NAME));
+ }
+
+ }
+}