@Override
    public void setName(String username, String name) throws UserNotFoundException {
        // Reject the operation since the provider is read-only
        throw new UnsupportedOperationException();
    }
XMPP disallows some characters in identifiers, requiring them to be escaped.

This implementation assumes that the database returns properly escaped identifiers,
but can apply escaping by setting the value of the 'jdbcUserProvider.isEscaped'
property to 'false'.

@return 'false' if this implementation needs to escape database content before processing.
xmppserver/src/main/java/org/jivesoftware/openfire/user/JDBCUserProvider.java