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https://issues.apache.org/jira/browse/MCOMPILER-397?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17733760#comment-17733760
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Emmanuel Bourg commented on MCOMPILER-397:
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I've opened a PR with the patch currently applied to maven-compiler-plugin in
Debian.
> Use relative paths in jpms.args to make the builds reproducible
> ---------------------------------------------------------------
>
> Key: MCOMPILER-397
> URL: https://issues.apache.org/jira/browse/MCOMPILER-397
> Project: Maven Compiler Plugin
> Issue Type: Improvement
> Affects Versions: 3.8.1
> Reporter: Emmanuel Bourg
> Priority: Major
> Labels: reproducibility
>
> The {{jpms.args}} file generated since the version 3.7 contains absolute
> paths, for example here is the file generated for jaxb-core:
> {code}
> --add-modules
> java.xml.bind
> --upgrade-module-path
> /home/ebourg/jaxb/jaxb-ri/core/target/endorsed
> {code}
> The absolute path affects the reproducibility of the builds. Someone else
> rebuilding the project is unlikely to have the same base path and will not
> get a byte identical artifact. I suggest using a relative path instead
> (starting at the root of the project or at the root of the module) and
> normalizing the path separators (such that builds on Windows and Unix
> generate the same file).
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