code: @Override
      public Object getObjectProperty(String name) throws JMSException {
          JMSMessagePropertyValue propertyValue = getJMSMessagePropertyValue(name);
          if (propertyValue != null) {
              return propertyValue.getValue();
          }
          return null;
      }
docs: Returns the value of the Java object property with the specified name.
  <P>
  This method can be used to return, in boxed format, an object that has
  been stored as a property in the message with the equivalent
  <code>setObjectProperty</code> method call, or its equivalent primitive
  setter method.
  
  @param name
  The name of the property to get.
  @return the Java object property value with the specified name, in boxed
  format (for example, if the property was set as an
  <code>int</code>, an <code>Integer</code> is returned); if there
  is no property by this name, a null value is returned.
  @throws JMSException
  On internal error.