/** Obtain a reference to the JAX-RPC MessageContext. An instance of a
* stateless session bean can call this method from any business method
* invoked through its web service endpoint interface.
* @return The MessageContext for this web service invocation.
* @throws IllegalStateException - Thrown if this method is invoked while
* the instance is in a state that does not allow access to this method.
public MessageContext getMessageContext() throws IllegalStateException;