diff --git a/support/src/main/java/org/springframework/ws/transport/jms/JmsMessageSender.java b/support/src/main/java/org/springframework/ws/transport/jms/JmsMessageSender.java
index 0f0d8974..7dc1a3db 100644
--- a/support/src/main/java/org/springframework/ws/transport/jms/JmsMessageSender.java
+++ b/support/src/main/java/org/springframework/ws/transport/jms/JmsMessageSender.java
@@ -128,14 +128,14 @@ public class JmsMessageSender extends JmsDestinationAccessor implements WebServi
             jmsConnection = createConnection();
             jmsSession = createSession(jmsConnection);
             Destination requestDestination = resolveRequestDestination(jmsSession, uri);
-            JmsSenderConnection wsConnection =
-                    new JmsSenderConnection(getConnectionFactory(), jmsConnection, jmsSession, requestDestination);
+            Message requestMessage = createRequestMessage(jmsSession, uri);
+            JmsSenderConnection wsConnection = new JmsSenderConnection(getConnectionFactory(), jmsConnection,
+                    jmsSession, requestDestination, requestMessage);
             wsConnection.setDeliveryMode(JmsTransportUtils.getDeliveryMode(uri));
             wsConnection.setPriority(JmsTransportUtils.getPriority(uri));
             wsConnection.setReceiveTimeout(receiveTimeout);
             wsConnection.setResponseDestination(resolveResponseDestination(jmsSession, uri));
             wsConnection.setTimeToLive(JmsTransportUtils.getTimeToLive(uri));
-            wsConnection.setMessageType(JmsTransportUtils.getMessageType(uri));
             wsConnection.setTextMessageEncoding(textMessageEncoding);
             return wsConnection;
         }
@@ -159,5 +159,19 @@ public class JmsMessageSender extends JmsDestinationAccessor implements WebServi
         return StringUtils.hasLength(destinationName) ? resolveDestinationName(session, destinationName) : null;
     }
 
+    private Message createRequestMessage(Session session, URI uri) throws JMSException {
+        int messageType = JmsTransportUtils.getMessageType(uri);
+        if (messageType == JmsTransportConstants.BYTES_MESSAGE_TYPE) {
+            return session.createBytesMessage();
+        }
+        else if (messageType == JmsTransportConstants.TEXT_MESSAGE_TYPE) {
+            return session.createTextMessage();
+        }
+        else {
+            throw new IllegalArgumentException("Invalid message type [" + messageType + "].");
+        }
+
+    }
+
 
 }
diff --git a/support/src/main/java/org/springframework/ws/transport/jms/JmsSenderConnection.java b/support/src/main/java/org/springframework/ws/transport/jms/JmsSenderConnection.java
index ca734fbc..ea00312f 100644
--- a/support/src/main/java/org/springframework/ws/transport/jms/JmsSenderConnection.java
+++ b/support/src/main/java/org/springframework/ws/transport/jms/JmsSenderConnection.java
@@ -51,7 +51,7 @@ import org.springframework.ws.transport.jms.support.JmsTransportUtils;
  * @author Arjen Poutsma
  * @since 1.5.0
  */
-public class JmsSenderConnection extends AbstractSenderConnection implements WebServiceConnection {
+public class JmsSenderConnection extends AbstractSenderConnection {
 
     private final ConnectionFactory connectionFactory;
 
@@ -61,9 +61,9 @@ public class JmsSenderConnection extends AbstractSenderConnection implements Web
 
     private final Destination requestDestination;
 
-    private Destination responseDestination;
+    private final Message requestMessage;
 
-    private Message requestMessage;
+    private Destination responseDestination;
 
     private Message responseMessage;
 
@@ -77,20 +77,22 @@ public class JmsSenderConnection extends AbstractSenderConnection implements Web
 
     private String textMessageEncoding;
 
-    private int messageType;
-
     /** Constructs a new JMS connection with the given parameters. */
     protected JmsSenderConnection(ConnectionFactory connectionFactory,
                                   Connection connection,
                                   Session session,
-                                  Destination requestDestination) throws JMSException {
+                                  Destination requestDestination,
+                                  Message requestMessage) throws JMSException {
         Assert.notNull(connectionFactory, "'connectionFactory' must not be null");
         Assert.notNull(connection, "'connection' must not be null");
         Assert.notNull(session, "'session' must not be null");
+        Assert.notNull(requestDestination, "'requestDestination' must not be null");
+        Assert.notNull(requestMessage, "'requestMessage' must not be null");
         this.connectionFactory = connectionFactory;
         this.connection = connection;
         this.session = session;
         this.requestDestination = requestDestination;
+        this.requestMessage = requestMessage;
     }
 
     /** Returns the request message for this connection. Returns either a {@link BytesMessage} or a {@link TextMessage}. */
@@ -134,10 +136,6 @@ public class JmsSenderConnection extends AbstractSenderConnection implements Web
         this.textMessageEncoding = textMessageEncoding;
     }
 
-    void setMessageType(int messageType) {
-        this.messageType = messageType;
-    }
-
     /*
      * URI
      */
@@ -167,20 +165,6 @@ public class JmsSenderConnection extends AbstractSenderConnection implements Web
      * Sending
      */
 
-    protected void onSendBeforeWrite(WebServiceMessage message) throws IOException {
-        try {
-            if (messageType == JmsTransportConstants.BYTES_MESSAGE_TYPE) {
-                requestMessage = session.createBytesMessage();
-            }
-            else {
-                requestMessage = session.createTextMessage();
-            }
-        }
-        catch (JMSException ex) {
-            throw new JmsTransportException(ex);
-        }
-    }
-
     protected void addRequestHeader(String name, String value) throws IOException {
         try {
             JmsTransportUtils.addHeader(requestMessage, name, value);