Hi!
With the fix for JDK-8077242 ((str) Optimize
AbstractStringBuilder.append(CharSequence, int, int) for String
argument) a change in behavior was introduced.
In the places, where sb.append(str.substring(from, to)) used to be
called, in the case of wrong indices StringIndexOutOfBoundsException was
thrown.
Now, after I replaced the code to sb.append(str, from, to), in such
cases IndexOutOfBoundsException is thrown.
The proposal is to make AbstractStringBuilder.append(CharSequence, int,
int) throw more specific StringIndexOutOfBoundsException, which
1) will eliminate the regression,
2) will be more consistent with most other methods of
AbstractStringBuilder, which throw StringIndexOutOfBoundsException.
BUGURL: https://bugs.openjdk.java.net/browse/JDK-8130646
WEBREV: http://cr.openjdk.java.net/~igerasim/8130646/00/webrev/
Sincerely yours,
Ivan
