desruisseaux commented on PR #508:
URL: https://github.com/apache/maven-jar-plugin/pull/508#issuecomment-5326485916
@hboutemy: since reproducible build is supported only partially on Java 17
and 18, we were wondering if it should be a hard build failure if reproducible
build is requested on Java 17 or 18. Currently, it is only a warning. If we
make it a hard failure, since the `project.build.outputTimestamp` property has
a default value in the super POM of all Maven 4 projects, the JAR plugin would
fail by default for everyone using Java 17 or 18. A workaround is to opt-out
reproducible build in the `pom.xml`:
```xml
<properties>
<project.build.outputTimestamp/> <!-- For compatibility with Java 17 and
18. -->
</properties>`
```
At first, we though that silently producing a non-fully reproducible build
on Java 17/18 would be damageable. On a second though, I now think that having
all Maven 4 projects failing by default on Java 17/18 is worst. Do you have any
opinion on this matter?
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