Hi,
While investigating reproducibility issues on the javadoc package of a
package I'm updating I discovered that the maven-javadoc-plugin
generates lists of packages (passed as @packages argument to javadoc)
that have an ordering that varies depending on filesystem ordering [1].
That alone would not be a problem as that `packages` file is normally
not included in the resulting binary packages. But unfortunately several
javadoc implementations (at least OpenJDK 11 and 21) will sometimes
produce a slightly different output depending on the ordering of the
package list as input.
I believe that this should be primarily fixed in javadoc, but that
sorting the list generated by the maven-javadoc-plugin is also a
reasonable mitigation that will improve reproducibility when using JDKs
that haven't been fixed.
Do you think this is worth opening an issue on your tracker?
Best regards,
[1]: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1089013
--
Julien Plissonneau Duquène
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