This closes #595

artemis-commons/src/main/java/org/apache/activemq/artemis/api/core/ActiveMQExceptionType.java

@@ -154,6 +154,12 @@ public enum ActiveMQExceptionType {
          return new ActiveMQTransactionOutcomeUnknownException(msg);
       }
    },
+   TRANSACTION_TIMEOUT(116) {
+      @Override
+      public ActiveMQException createException(String msg) {
+         return new ActiveMQTranasactionTimeoutException(msg);
+      }
+   },
    ALREADY_REPLICATING(116) {
       @Override
       public ActiveMQException createException(String msg) {

artemis-commons/src/main/java/org/apache/activemq/artemis/api/core/ActiveMQTranasactionTimeoutException.java

@@ -0,0 +1,29 @@
+/**
+ * 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.api.core;
+
+public class ActiveMQTranasactionTimeoutException extends ActiveMQException {
+
+   public ActiveMQTranasactionTimeoutException() {
+      super(ActiveMQExceptionType.TRANSACTION_TIMEOUT);
+   }
+
+   public ActiveMQTranasactionTimeoutException(String message) {
+      super(ActiveMQExceptionType.TRANSACTION_TIMEOUT, message);
+   }
+}

artemis-server/src/main/java/org/apache/activemq/artemis/core/server/impl/ServerSessionImpl.java

@@ -855,9 +855,15 @@ public class ServerSessionImpl implements ServerSession, FailureListener {
          else if (tx.getState() == Transaction.State.ROLLEDBACK) {
             final String msg = "Cannot end, transaction is rolled back";
 
+            final boolean timeout = tx.hasTimedOut();
             tx = null;
 
-            throw new ActiveMQXAException(XAException.XAER_PROTO, msg);
+            if (timeout) {
+               throw new ActiveMQXAException(XAException.XA_RBTIMEOUT, msg);
+            }
+            else {
+               throw new ActiveMQXAException(XAException.XAER_PROTO, msg);
+            }
          }
          else {
             tx = null;

artemis-server/src/main/java/org/apache/activemq/artemis/core/transaction/Transaction.java

@@ -76,6 +76,10 @@ public interface Transaction {
 
    boolean hasTimedOut(long currentTime, int defaultTimeout);
 
+   /** To validate if the Transaction had previously timed out.
+    *  This is to check the reason why a TX has been rolled back. */
+   boolean hasTimedOut();
+
    void putProperty(int index, Object property);
 
    Object getProperty(int index);

artemis-server/src/main/java/org/apache/activemq/artemis/core/transaction/impl/TransactionImpl.java

@@ -23,7 +23,9 @@ import java.util.LinkedList;
 import java.util.List;
 
 import org.apache.activemq.artemis.api.core.ActiveMQException;
+import org.apache.activemq.artemis.api.core.ActiveMQExceptionType;
 import org.apache.activemq.artemis.api.core.ActiveMQIllegalStateException;
+import org.apache.activemq.artemis.api.core.ActiveMQTranasactionTimeoutException;
 import org.apache.activemq.artemis.core.io.IOCallback;
 import org.apache.activemq.artemis.core.persistence.StorageManager;
 import org.apache.activemq.artemis.core.server.ActiveMQServerLogger;
@@ -169,13 +171,18 @@ public class TransactionImpl implements Transaction {
          }
 
          if (timedout) {
-            markAsRollbackOnly(new ActiveMQException("TX Timeout"));
+            markAsRollbackOnly(new ActiveMQTranasactionTimeoutException());
          }
 
          return timedout;
       }
    }
 
+   @Override
+   public boolean hasTimedOut() {
+      return state == State.ROLLBACK_ONLY && exception.getType() == ActiveMQExceptionType.TRANSACTION_TIMEOUT;
+   }
+
    @Override
    public void prepare() throws Exception {
       if (logger.isTraceEnabled()) {

tests/unit-tests/src/test/java/org/apache/activemq/artemis/tests/unit/core/postoffice/impl/BindingsImplTest.java

@@ -256,6 +256,11 @@ public class BindingsImplTest extends ActiveMQTestBase {
          // TODO Auto-generated method stub
          return null;
       }
+
+      @Override
+      public boolean hasTimedOut() {
+         return false;
+      }
    }
 
    private final class FakeFilter implements Filter {