RFR: 8361216: Do not fork javac in J2DBench ant build

[Phil Race]

On Tue, 1 Jul 2025 19:30:21 GMT, Eric Caspole <ecaspole at openjdk.org> wrote:

> Build J2DBench in ant using JAVA_HOME, not using fork to possibly pick a different javac from the PATH.

It isn't a demo and it isn't a jtreg test. 
Everything under src/share/demo is client related which may be why it is there.
But the right home for it is
test/jdk/performance/client
next to RenderPerfTest and SwingMark
But that location came along a long time after j2dbench

I kind of wonder if
test/jdk/performance/client
should be
test/jdk/client/performance/
and then we could have
test/jdk/client/jfc
for SwingSet etc.

-------------

PR Comment: https://git.openjdk.org/jdk/pull/26077#issuecomment-3033231886
PR Comment: https://git.openjdk.org/jdk/pull/26077#issuecomment-3033255013