yes it is really a bug.
I created a fix pr (with test codes) at
https://github.com/apache/commons-lang/pull/529
check in it when you guys have time.
Xeno Amess 于2020年4月29日周三 上午5:04写道：
> well when I look at StringUtil I found something like this.
>
> final char c1 = cs.charAt(index1++);
> final
well when I look at StringUtil I found something like this.
final char c1 = cs.charAt(index1++);
final char c2 = substring.charAt(index2++);
if (c1 == c2) {
continue;
}
if (!ignoreCase) {
return false;
}
// The same check as in String.regionMatches():
if (Character.toUpperCase(c1) !=
