RFR: 8345302: Building microbenchmarks require larger Java heap [v2]

[Erik Joelsson]

> Recently we have started to see OOME being thrown when building the microbenchmarks. See the bug for a closer analysis of why this happens by @shipilev and @mcimadamore. This patch just increases the default mx setting for the "big" java configuration in the build. I think that in 2024, we are ready to bump this to 2048M.
> 
> I'm not touching the 32 bit max mx setting as I have no way of testing it.

Erik Joelsson has updated the pull request incrementally with one additional commit since the last revision:

  Copyright year

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Changes:
  - all: https://git.openjdk.org/jdk/pull/22565/files
  - new: https://git.openjdk.org/jdk/pull/22565/files/c20b086f..828a8a26

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=22565&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=22565&range=00-01

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/22565.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/22565/head:pull/22565

PR: https://git.openjdk.org/jdk/pull/22565