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Posted to issues@maven.apache.org by "jira-importer (via GitHub)" <gi...@apache.org> on 2025/04/02 08:08:35 UTC
[I] [MPOM-264] Parameterize maven-compiler-plugin with parameter "release" when running on JDK 9+ [maven-apache-parent]
jira-importer opened a new issue, #479:
URL: https://github.com/apache/maven-apache-parent/issues/479
**[Konrad Windszus](https://issues.apache.org/jira/secure/ViewProfile.jspa?name=kwin)** opened **[MPOM-264](https://issues.apache.org/jira/browse/MPOM-264?redirect=false)** and commented
Instead of using `source` and `target` the new parameter `release` (https://maven.apache.org/plugins/maven-compiler-plugin/compile-mojo.html#release) should be used with Java 9+ as that also checks whether the used API is provided in the target Java release (https://docs.oracle.com/javase/9/tools/javac.htm#GUID-AEEC9F07-CB49-4E96-8BC7-BCC2C7F725C9__GUID-D343F6B4-3FDD-43A8-AD24-43DD70214471).
To be able to support both compilation with Java < 9 and above a profile should be used which either configures `source` and `target` or `release`.
You have to observe though that the parameter values are different though, as the former supports 1.6, 1.7 and 1.8 while the latter only supports 6, 7 and 8.
---
**Affects:** ASF-23
**Issue Links:**
- [MNG-6943](https://issues.apache.org/jira/browse/MNG-6943) Activate profile depending of jdk version used in toolchain
- [MPOM-447](https://issues.apache.org/jira/browse/MPOM-447) activate javac's release flag when building with JDK supporting that feature
**Remote Links:**
- [GitHub Pull Request #188
](https://github.com/apache/maven-apache-parent/pull/188)
- [GitHub Pull Request #48
](https://github.com/apache/maven-apache-parent/pull/48)
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Re: [I] [MPOM-264] Parameterize maven-compiler-plugin with parameter "release" when running on JDK 9+ [maven-apache-parent]
Posted by "jira-importer (via GitHub)" <gi...@apache.org>.
jira-importer commented on issue #479:
URL: https://github.com/apache/maven-apache-parent/issues/479#issuecomment-2771735752
**[Konrad Windszus](https://issues.apache.org/jira/secure/ViewProfile.jspa?name=kwin)** commented
[Herve Boutemy](https://issues.apache.org/jira/secure/ViewProfile.jspa?name=hboutemy) Any reason why you haven't added this to ASF parent?
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Re: [I] [MPOM-264] Parameterize maven-compiler-plugin with parameter "release" when running on JDK 9+ [maven-apache-parent]
Posted by "jira-importer (via GitHub)" <gi...@apache.org>.
jira-importer commented on issue #479:
URL: https://github.com/apache/maven-apache-parent/issues/479#issuecomment-2771735767
**[Konrad Windszus](https://issues.apache.org/jira/secure/ViewProfile.jspa?name=kwin)** commented
Fixed in https://github.com/apache/maven-apache-parent/commit/b938653652022a5754d7398168d3f897e55228af.
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Re: [I] [MPOM-264] Parameterize maven-compiler-plugin with parameter "release" when running on JDK 9+ [maven-apache-parent]
Posted by "jira-importer (via GitHub)" <gi...@apache.org>.
jira-importer commented on issue #479:
URL: https://github.com/apache/maven-apache-parent/issues/479#issuecomment-2771735730
**[Konrad Windszus](https://issues.apache.org/jira/secure/ViewProfile.jspa?name=kwin)** commented
An example approach for this can be found in https://github.com/apache/sling-parent/blob/9480890829a3a8670d5ba0fcb648de9b598a1c86/sling-parent/pom.xml#L535 and https://github.com/apache/sling-parent/blob/9480890829a3a8670d5ba0fcb648de9b598a1c86/sling-parent/pom.xml#L566
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Re: [I] [MPOM-264] Parameterize maven-compiler-plugin with parameter "release" when running on JDK 9+ [maven-apache-parent]
Posted by "jira-importer (via GitHub)" <gi...@apache.org>.
jira-importer commented on issue #479:
URL: https://github.com/apache/maven-apache-parent/issues/479#issuecomment-2771735741
**[Slawomir Jaranowski](https://issues.apache.org/jira/secure/ViewProfile.jspa?name=slawekjaranowski)** commented
Done in MPOM-447 for Maven parent
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Re: [I] [MPOM-264] Parameterize maven-compiler-plugin with parameter "release" when running on JDK 9+ [maven-apache-parent]
Posted by "jira-importer (via GitHub)" <gi...@apache.org>.
jira-importer commented on issue #479:
URL: https://github.com/apache/maven-apache-parent/issues/479#issuecomment-2771735760
**[Herve Boutemy](https://issues.apache.org/jira/secure/ViewProfile.jspa?name=hboutemy)** commented
it is in maven-parent https://github.com/apache/maven-parent/blob/master/pom.xml#L1317
in fact, I expected others to do it before me, and was surprised it had not been done, I suppose for a reason I did not know :)
one aspect is 1.x vs x, that I finally took time to document why it is reasonable in MPOM-449
but you're right, it's something that should be done at ASF level, not Maven only
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