Reads a string that has been encoded using a modified UTF-8 format from the bytes message stream.
For more information on the UTF-8 format, see "File System Safe UCS Transformation Format (FSS_UTF)", X/Open Preliminary Specification, X/Open Company Ltd., Document Number: P316. This information also appears in ISO/IEC 10646, Annex P.
@return a Unicode string from the bytes message stream
@throws JMSException if the JMS provider fails to read the message due tosome internal error.
@throws MessageEOFException if unexpected end of bytes stream has beenreached.
@throws MessageNotReadableException if the message is in write-only mode.