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@Til7701 Til7701 commented Mar 28, 2025

Fixes #602

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Description

This PR add support for the JLink options --generate-cds-archive and --order-resources.
Additionally, it adds the ability to supply additional args to JLink to support undocumented plugins. See #602 for a list of those.

@elharo elharo changed the title [#602] - Add support for JLink plugins Add support for JLink plugins Apr 14, 2025
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Til7701 commented Apr 14, 2025

The tests are failing, because some of the introduced plugin options are not available with all JDK vendors.
Is there a way to disable tests with some JDKs? I have never seen this test setup before. Maybe I could check in the groovy script, but I don't know, whether this is the right way.

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Hi @Til7701 -- you are right, CDS is a hotspot-specific thing, but other Java vendors like IBM may chose to replace hotspot and its CDS with something else -- like Eclipse OpenJ9 as Memory-Management and GC implementation with SCC (shared class cache) as an almost equivalent implementation.
Maybe we need something for the tests to be marked as "only run on HotSpot" vs "only run on OpenJ9" based JVMs.

@bmarwell bmarwell requested a review from rfscholte August 27, 2025 19:03
pom.xml Outdated
Comment on lines 267 to 268
<!-- This test does not work for all jdk vendors and versions -->
<pomExclude>cli-options/generate-cds-archive/pom.xml</pomExclude>
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Can you move the exclusion into a profile?
The profile could get activated by the existence of the property openj9.compiler or if the property java.vm.vendor equals Eclipse OpenJ9 or if java.vendor equals IBM Corporation.

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I added profiles for the exclusion. I had to create one for each, since Maven cannot activate a profile based on multiple properties.

@Til7701 Til7701 requested a review from bmarwell August 28, 2025 13:40
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OK, one more thing. The option generate-cds-archive cannot be used before Java 17.

The files you added (e.g. src/it/projects/cli-options/additional-args/invoker.properties) should reflect this. You need to add invoker.java.version = 17+.

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Add support for JLink plugins

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