RFR: 8341371: CDS cannot load archived heap objects with -XX:+UseSerialGC -XX:-UseCompressedOops [v3]

[Calvin Cheung]

On Wed, 23 Oct 2024 16:55:21 GMT, Matias Saavedra Silva <matsaave at openjdk.org> wrote:

>> [JDK-8298614](https://bugs.openjdk.org/browse/JDK-8298614) enabled writing the archived heap region with SerialGC and ParallelGC, but archives written with XX:-UseCompressedOops can't be loaded at runtime. This patch enables heap loading for SerialGC and ParallelGC as well as EpsilonGC and Shenandoah since they were enabled in [JDK-8341913](https://bugs.openjdk.org/browse/JDK-8341913). Related tests were updated to check for the new conditions. Verified with tier 1-5 tests.
>
> Matias Saavedra Silva has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Calvin comments and copyright

Changes requested by ccheung (Reviewer).

test/hotspot/jtreg/runtime/cds/appcds/TestParallelGCWithCDS.java line 50:

> 48:  * @requires vm.gc.Parallel
> 49:  * @requires vm.gc.G1
> 50:  * requires vm.bits == "64"

Missing the `@` before `requires`.

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

PR Review: https://git.openjdk.org/jdk/pull/21647#pullrequestreview-2389468004
PR Review Comment: https://git.openjdk.org/jdk/pull/21647#discussion_r1813197656