RFR: JDK-8292595: jdwp utf_util getWideString might leak memory [v2]

[Alan Bateman]

On Fri, 26 Aug 2022 12:04:57 GMT, Matthias Baesken <mbaesken at openjdk.org> wrote:

>> There seems to be a case where utf_util.c getWideString might leak memory in an early return.
>
> Matthias Baesken has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Introduce UTF_WARNING and use the fallback

src/jdk.jdwp.agent/share/native/libjdwp/utf_util.c line 339:

> 337:     *pwlen = wlen;
> 338:     if (wlen <= 0) {
> 339:         UTF_WARNING(("Can't get WIDE string length"));

If you are changing this to a warning then it should probably be limited to the NO_UNICODE_TRANSLATION case, I think you still want to abort if it fails due to invalid flags or parameters or buffer issue as that would a JDK (or Windows) bug.

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PR: https://git.openjdk.org/jdk/pull/9918