git: openjdk/jdk21u-dev: master: 8323170: j2dbench is using outdated javac source/target to be able to build by itself

[Aleksey Shipilev]

Changeset: 2d791b8b
Author:    Jiří Vaněk <jvanek at openjdk.org>
Committer: Aleksey Shipilev <shade at openjdk.org>
Date:      2024-02-28 17:50:25 +0000
URL:       https://git.openjdk.org/jdk21u-dev/commit/2d791b8b856f6c3794f5f36a68548b15e93474f4

8323170: j2dbench is using outdated  javac source/target to be able to build by itself

Backport-of: b5df2f43147535b4d22c6451e3a65170159f76b7

! src/demo/share/java2d/J2DBench/Makefile
! src/demo/share/java2d/J2DBench/README
! src/demo/share/java2d/J2DBench/build.xml