8219196: DataOutputStream.writeUTF may throw unexpected exceptions

[Martin Buchholz]

Consider changing utflen to a long.

On Fri, Mar 15, 2019 at 12:25 PM Brian Burkhalter <
brian.burkhalter at oracle.com> wrote:

> For [1] please review the proposed fix [2]. It is possible to preemptively
> detect a sufficient condition for when the length of the modified UTF-8
> encoding of the string parameter will exceed the maximum allowed value and
> thereby avert any numerical overflow in incrementing the accumulator which
> counts the number of encoded characters.
>
> Thanks,
>
> Brian
>
> [1] https://bugs.openjdk.java.net/browse/JDK-8219196
> [2] http://cr.openjdk.java.net/~bpb/8219196/webrev.00/