From ###@###.###:

The logic in the javax.management.MatchQueryExp.wildmatch() method
appears to be flawed with respect to character range matching.

wildmatch( "2[7-9]", "21" ) incorrectly returns 'true'

The problem lies in the following code block:

    while (++pi < plen && (c = p.charAt(pi)) != ']') {
        if (p.charAt(pi) == '-' && pi+1 < plen) {
            if (s.charAt(si) >= c && s.charAt(si) <= p.charAt(pi+1)) {
                seenit = true;
            }
            pi += 1;
        } else {
            if (c == s.charAt(si)) {
                seenit = true;
            }
        }
    }

The comparison expression 's.charAt(si) >= c' in the third line will
incorrectly compare the character 's.charAt(si)' against '-'.

When I modified the expression to 's.charAt(si) >= p.charAt(pi-1)',
the example above correctly returned 'false'.
###@###.### 2005-05-06 11:24:50 GMT