question: public static String randomXmlUsableUnicodeString ( ) { String result = TestUtil . randomRealisticUnicodeString ( random ( ) ) ; if ( result . matches ( ".*\\p{InSpecials}.*" ) ) { result = TestUtil . randomSimpleString ( random ( ) ) ; } return result ; }
target:  We want "realistic" unicode strings beyond simple ascii, but because our updates use XML we need to ensure we don't get "special" code block.