question: @ Override public void warning ( String domain , String key , XMLParseException exception ) throws XNIException { if ( fErrorHandler != null ) { SAXParseException saxException = createSAXParseException ( exception ) ; try { fErrorHandler . warning ( saxException ) ; } catch ( SAXParseException e ) { throw createXMLParseException ( e ) ; } catch ( SAXException e ) { throw createXNIException ( e ) ; } } }
target:  Reports a warning. Warnings are non-fatal and can be safely ignored by most applications.