RFR: 8233269: Improve handling of JAVA_ARGS

[Erik Joelsson]

On Wed, 1 Jun 2022 13:52:46 GMT, Adam Sotona <asotona at openjdk.org> wrote:

> LauncherCommon.gmk is unfortunately defining JAVA_ARGS with `-J-ms8m` option for all JDK launchers, including java launcher.
> JAVA_ARGS  should not be defined for java launcher (in contrast to the other JDK launchers), and the command line option `-J-ms8m` is obsolete for java launcher.
> 
> Proposed patch removes JAVA_ARGS from java launcher, while keeping status quo for all other JDK launchers.
> The patch of LauncherCommon.gmk identifies java launcher by undefined MAIN_CLASS.
> 
> Thanks for review,
> Adam

Marked as reviewed by erikj (Reviewer).

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PR: https://git.openjdk.java.net/jdk/pull/8972