AMQ-7309 - Implement JMS 2.0 createSession methods

Adds a real implemention for createSession() and createSession(ackMode)
methods on ActiveMQConnection

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

@@ -317,7 +317,7 @@ public class ActiveMQConnection implements Connection, TopicConnection, QueueCon
      */
     @Override
     public Session createSession() throws JMSException {
-         throw new UnsupportedOperationException("createSession() is unsupported");
+        return createSession(false, Session.AUTO_ACKNOWLEDGE);
     }
 
     /**
@@ -340,8 +340,8 @@ public class ActiveMQConnection implements Connection, TopicConnection, QueueCon
      * @since 2.0
      */
     @Override
-    public Session createSession(int sessionMode) throws JMSException {
+    public Session createSession(int acknowledgeMode) throws JMSException {
-        throw new UnsupportedOperationException("createSession(int sessionMode) is unsupported");
+        return createSession(acknowledgeMode == Session.SESSION_TRANSACTED, acknowledgeMode);
     }
 
     /**

activemq-unit-tests/src/test/java/org/apache/activemq/jms2/ActiveMQJMS2ConnectionTest.java

@@ -0,0 +1,65 @@
+/**
+ * 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.jms2;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+
+import javax.jms.JMSException;
+import javax.jms.Session;
+import org.junit.Test;
+
+public class ActiveMQJMS2ConnectionTest extends ActiveMQJMS2TestBase {
+
+    @Test
+    public void testCreateSession() throws Exception {
+        verifySession(connection.createSession(), Session.AUTO_ACKNOWLEDGE);
+    }
+
+    @Test
+    public void testCreateSessionAckModeAuto() throws Exception {
+        verifySession(connection.createSession(Session.AUTO_ACKNOWLEDGE), Session.AUTO_ACKNOWLEDGE);
+    }
+
+    @Test
+    public void testCreateSessionAckModeClient() throws Exception {
+        verifySession(connection.createSession(Session.CLIENT_ACKNOWLEDGE), Session.CLIENT_ACKNOWLEDGE);
+    }
+
+    @Test
+    public void testCreateSessionAckModeDups() throws Exception {
+        verifySession(connection.createSession(Session.DUPS_OK_ACKNOWLEDGE), Session.DUPS_OK_ACKNOWLEDGE);
+    }
+
+    @Test
+    public void testCreateSessionAckModeTrans() throws Exception {
+        verifySession(connection.createSession(Session.SESSION_TRANSACTED), Session.SESSION_TRANSACTED);
+    }
+
+    private void verifySession(Session session, int acknowledgeMode) throws JMSException {
+        try {
+            assertNotNull(session);
+            assertEquals(acknowledgeMode, session.getAcknowledgeMode());
+            assertEquals(acknowledgeMode == Session.SESSION_TRANSACTED, session.getTransacted());
+        } finally {
+            if (session != null) {
+                session.close();
+            }
+        }
+    }
+
+}