private static boolean validateValue ( String value ) { if ( value . length ( ) > VALUE_MAX_SIZE || value . charAt ( value . length ( ) - 1 ) == ' ' /* '\u0020' */ ) { return false ; } for ( int i = 0 ; i < value . length ( ) ; i ++ ) { char c = value . charAt ( i ) ; if ( c == ' ' || c == ' ' || c < ' ' /* '\u0020' */ || c > ' ' /* '\u007E' */ ) { return false ; } } return true ; }
0x20 to 0x7E ) except comma and = .