On Thu, 15 Feb 2024 06:29:24 GMT, Christian Stein <cst...@openjdk.org> wrote:
>> Please review this PR that makes the launcher helper keep a reference to the
>> executable JAR file active after extracting the name of the main class and
>> returning it as Class instance. Now, when loading classes from the JAR file,
>> it hasn't to be re-opened.
>
> Christian Stein has updated the pull request incrementally with two
> additional commits since the last revision:
>
> - Remove `String jarname` from `getMainClassFromJar`'s signature
> - Introduce and use dedicated on-close error message
src/java.base/share/classes/sun/launcher/LauncherHelper.java line 821:
> 819: // In LM_JAR mode, put the underlying file in the
> JarFile/ZipFile cache.
> 820: // This will avoid needing to re-parse the manifest when the JAR
> file
> 821: // is opened on the class path, triggered by Class.forName below.
Nice improvement to have. would it be ok to pad out this comment a bit more ? I
found it difficult to understand the specifics. Perhaps :
// In LM_JAR mode, keep the underlying file open to retain it
in
// the ZipFile HashMap cache. This will avoid needing to
re-parse
// the central directory when the file is opened on the class
path,
// triggered by Class.forName below.
-------------
PR Review Comment: https://git.openjdk.org/jdk/pull/17843#discussion_r1494339239
