Closes this connection.
Once a connection has been closed, it is not available for further use. A new connection needs to be created.
throws: IOException - if an I/O error occurs when closing this connection
Indicates whether this connection has an error. Typically, error detection is done by inspecting connection error
codes, etc.
true if this connection has an error; false otherwise.
Receives a message using the given
WebServiceMessageFactory . This method blocks until it receives, or
returns null when no message is received.
Parameters: messageFactory - the message factory used for reading messages the read message, or null if no message received throws: IOException - in case of I/O errors