On Mon, 22 Mar 2021 19:40:19 GMT, Aleksei Voitylov <avoity...@openjdk.org> wrote:
> With CDS and G1, test api/java_lang/ModuleLayer/Boot.html fails in JDK 16. > > After JDK-8253081 with CDS enabled two instances of empty layer appear in the > runtime. One comes from default initialization of > java/lang/ModuleLayer.EMPTY_LAYER, another one comes from CDS archive and is > returned by ModuleLayer.boot().parents().get(0). The fix makes > java/lang/ModuleLayer.EMPTY_LAYER a singleton with both CDS on and off, > similar to java/lang/module/Configuration.EMPTY_CONFIGURATION. > > Testing: JCK 16, jtreg (including newly added test), pre-submit GitHub > actions tests. This pull request has now been integrated. Changeset: 133a63b4 Author: Aleksei Voitylov <avoity...@openjdk.org> Committer: Claes Redestad <redes...@openjdk.org> URL: https://git.openjdk.java.net/jdk/commit/133a63b4 Stats: 22 lines in 3 files changed: 19 ins; 0 del; 3 mod 8263968: CDS: java/lang/ModuleLayer.EMPTY_LAYER should be singleton Reviewed-by: iklam, dholmes, alanb, redestad ------------- PR: https://git.openjdk.java.net/jdk/pull/3131
