code: public void setSocketBindingPort(String socketBindingGroupName, String socketBindingName, int port)
          throws Exception {
          setSocketBindingPortExpression(socketBindingGroupName, socketBindingName, null, port);
      }
docs: Sets the port number for the named socket binding found in the named socket binding group.
  
  @param socketBindingGroupName the name of the socket binding group that has the named socket binding
  @param socketBindingName the name of the socket binding whose port is to be set
  @param port the new port number
  @throws Exception any error