On Tue, 28 Feb 2023 07:50:18 GMT, Tagir F. Valeev <[email protected]> wrote:
>> Jim Laskey has updated the pull request incrementally with one additional
>> commit since the last revision:
>>
>> Optimize for empty CharSequence
>
> src/java.base/share/classes/java/lang/AbstractStringBuilder.java line 1879:
>
>> 1877: * @since 21
>> 1878: * @throws IllegalArgumentException if {@code count} is less than
>> zero
>> 1879: * @throws IndexOutOfBoundsException if the result overflows the
>> buffer
>
> Can `IndexOutOfBoundsException` be really thrown? We don't have any index
> here. From the implementation I see that only `OutOfMemoryError` and
> `IllegalArgumentException` can be thrown.
>
> Also, I see a small descrepancy between messages in this method and
> `String.repeat`. The latter has:
>
>
> * @throws IllegalArgumentException if the {@code count} is
> * negative.
> *
> * @since 11
> */
> public String repeat(int count) {
> if (count < 0) {
> throw new IllegalArgumentException("count is negative: " + count);
> }
>
>
> Probably it's better to reuse the same wording ("is negative" instead of "is
> less than zero") for consistency?
You are correct about `IndexOutOfBoundsException`. Earlier versions used
methods that threw `IndexOutOfBoundsException`. Also, changing to "is negative"
-------------
PR: https://git.openjdk.org/jdk/pull/12728
