ARTEMIS-1332 Always return a response to the client on session metadata add

This will make sure that if there is an ActiveMQException thrown the
client will get notified and not hang.

artemis-server/src/main/java/org/apache/activemq/artemis/core/protocol/core/ServerSessionPacketHandler.java

@@ -593,6 +593,7 @@ public class ServerSessionPacketHandler implements ChannelHandler {
                   break;
                }
                case PacketImpl.SESS_ADD_METADATA2: {
+                  requiresResponse = true;
                   SessionAddMetaDataMessageV2 message = (SessionAddMetaDataMessageV2) packet;
                   if (message.isRequiresConfirmations()) {
                      response = new NullResponseMessage();
@@ -601,6 +602,7 @@ public class ServerSessionPacketHandler implements ChannelHandler {
                   break;
                }
                case PacketImpl.SESS_UNIQUE_ADD_METADATA: {
+                  requiresResponse = true;
                   SessionUniqueAddMetaDataMessage message = (SessionUniqueAddMetaDataMessage) packet;
                   if (session.addUniqueMetaData(message.getKey(), message.getData())) {
                      response = new NullResponseMessage();

tests/integration-tests/src/test/java/org/apache/activemq/artemis/tests/integration/jms/client/SessionMetadataAddExceptionTest.java

@@ -0,0 +1,93 @@
+/*
+ * 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.artemis.tests.integration.jms.client;
+
+import javax.jms.Connection;
+import javax.jms.JMSException;
+
+import org.apache.activemq.artemis.api.core.ActiveMQException;
+import org.apache.activemq.artemis.api.core.client.ClientSession;
+import org.apache.activemq.artemis.core.config.Configuration;
+import org.apache.activemq.artemis.core.server.ServerSession;
+import org.apache.activemq.artemis.core.server.plugin.ActiveMQServerPlugin;
+import org.apache.activemq.artemis.jms.client.ActiveMQConnectionFactory;
+import org.apache.activemq.artemis.tests.util.JMSTestBase;
+import org.junit.Test;
+
+/**
+ * Test that the client receives an exception if there is an error when metadata
+ * is added
+ */
+public class SessionMetadataAddExceptionTest extends JMSTestBase {
+
+   @Override
+   protected Configuration createDefaultConfig(boolean netty) throws Exception {
+      Configuration config = super.createDefaultConfig(netty);
+      config.registerBrokerPlugin(new ActiveMQServerPlugin() {
+
+         @Override
+         public void beforeSessionMetadataAdded(ServerSession session, String key, String data)
+               throws ActiveMQException {
+
+            if (ClientSession.JMS_SESSION_CLIENT_ID_PROPERTY.equals(key)) {
+               if ("invalid".equals(data)) {
+                  throw new ActiveMQException("Invalid clientId");
+               }
+            }
+         }
+
+      });
+
+      return config;
+   }
+
+   @Test(timeout = 5000, expected = JMSException.class)
+   public void testInvalidClientIdSetConnection() throws Exception {
+      Connection con = cf.createConnection();
+      con.setClientID("invalid");
+   }
+
+   @Test(timeout = 5000, expected = JMSException.class)
+   public void testInvalidClientIdSetFactory() throws Exception {
+      ActiveMQConnectionFactory activeMQConnectionFactory = (ActiveMQConnectionFactory) cf;
+      activeMQConnectionFactory.setClientID("invalid");
+      cf.createConnection();
+   }
+
+   @Test(timeout = 5000)
+   public void testValidIdSetConnection() throws Exception {
+      Connection con = cf.createConnection();
+      try {
+         con.setClientID("valid");
+         con.start();
+      } finally {
+         con.close();
+      }
+   }
+
+   @Test(timeout = 5000)
+   public void testValidClientIdSetFactory() throws Exception {
+      ActiveMQConnectionFactory activeMQConnectionFactory = (ActiveMQConnectionFactory) cf;
+      activeMQConnectionFactory.setClientID("valid");
+      Connection con = cf.createConnection();
+      try {
+         con.start();
+      } finally {
+         con.close();
+      }
+   }
+}