question: public static final void isXMLCharWF ( DOMErrorHandler errorHandler , DOMErrorImpl error , DOMLocatorImpl locator , String datavalue , boolean isXML11Version ) { if ( datavalue == null || ( datavalue . length ( ) == 0 ) ) { return ; } char [ ] dataarray = datavalue . toCharArray ( ) ; int datalength = dataarray . length ; if ( isXML11Version ) { int i = 0 ; while ( i < datalength ) { if ( XML11Char . isXML11Invalid ( dataarray [ i ++ ] ) ) { char ch = dataarray [ i - 1 ] ; if ( XMLChar . isHighSurrogate ( ch ) && i < datalength ) { char ch2 = dataarray [ i ++ ] ; if ( XMLChar . isLowSurrogate ( ch2 ) && XMLChar . isSupplemental ( XMLChar . supplemental ( ch , ch2 ) ) ) { continue ; } } String msg = DOMMessageFormatter . formatMessage ( DOMMessageFormatter . DOM_DOMAIN , "InvalidXMLCharInDOM" , new Object [ ] { Integer . toString ( dataarray [ i - 1 ] , 16 ) } ) ; reportDOMError ( errorHandler , error , locator , msg , DOMError . SEVERITY_ERROR , "wf-invalid-character" ) ; } } } else { int i = 0 ; while ( i < datalength ) { if ( XMLChar . isInvalid ( dataarray [ i ++ ] ) ) { char ch = dataarray [ i - 1 ] ; if ( XMLChar . isHighSurrogate ( ch ) && i < datalength ) { char ch2 = dataarray [ i ++ ] ; if ( XMLChar . isLowSurrogate ( ch2 ) && XMLChar . isSupplemental ( XMLChar . supplemental ( ch , ch2 ) ) ) { continue ; } } String msg = DOMMessageFormatter . formatMessage ( DOMMessageFormatter . DOM_DOMAIN , "InvalidXMLCharInDOM" , new Object [ ] { Integer . toString ( dataarray [ i - 1 ] , 16 ) } ) ; reportDOMError ( errorHandler , error , locator , msg , DOMError . SEVERITY_ERROR , "wf-invalid-character" ) ; } } } }
target:  NON-DOM: check for valid XML characters as per the XML version