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Posted to issues@maven.apache.org by "Konrad Windszus (Jira)" <ji...@apache.org> on 2021/06/17 18:22:00 UTC
[jira] [Updated] (MCOMPILER-468) Introduce parameter to be used for
source, target and release
[ https://issues.apache.org/jira/browse/MCOMPILER-468?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Konrad Windszus updated MCOMPILER-468:
--------------------------------------
Description:
Setting up the maven-compiler-plugin in a way that is compatible with both JDK < 9 and JDK 9+ is tricky as
# parameter {{release}} breaks compilation with javac 8 or older (https://github.com/codehaus-plexus/plexus-compiler/issues/140)
# {{source}}, {{target}} and {{release}} accept different values: JDK <= 8 only supports values starting with {{1.}} while JDK 9+ accepts only {{6}}, {{7}}, {{8}}, {{9}}, ... for {{release}} and in addition also {{1.6}}, {{1.7}} and {{1.8}} for {{source}} and {{target}}.
I propose to introduce a new parameter which hides that complexity called {{targetJavaVersion}} or similar accepting both {{1.6}}, {{1.7}} and {{1.8}} and {{6}}, {{7}}, {{8}}, {{9}}, ... and use that value (transformed accordingly) either with {{release}} for JDK9 + or with {{source}} and {{target}} for JDK < 9.
was:
Setting up the maven-compiler-plugin in a way that is compatible with both JDK < 9 and JDK 9+ is tricky as
# parameter {{release}} breaks compilation with javac 8 or older (https://github.com/codehaus-plexus/plexus-compiler/issues/140)
# {{source}}, {{target}} and {{release}} accept different values: JDK <= 8 only supports values starting with {{1.}} while JDK 9+ accepts only {{6}}, {{7}}, {{8}}, {{9}}, ... for {{release}} and in addition also {{1.6}}, {{1.7}} and {{1.8}} for {{source}} and {{target}}.
I propose to introduce a new parameter which hides that complexity called {{targetJavaVersion}} accepting both {{1.6}}, {{1.7}} and {{1.8}} and {{6}}, {{7}}, {{8}}, {{9}}, ... and affect either {{release}} for JDK9 + or {{source}} and {{target}} for JDK < 9.
> Introduce parameter to be used for source, target and release
> -------------------------------------------------------------
>
> Key: MCOMPILER-468
> URL: https://issues.apache.org/jira/browse/MCOMPILER-468
> Project: Maven Compiler Plugin
> Issue Type: Improvement
> Affects Versions: 3.8.1
> Reporter: Konrad Windszus
> Priority: Major
>
> Setting up the maven-compiler-plugin in a way that is compatible with both JDK < 9 and JDK 9+ is tricky as
> # parameter {{release}} breaks compilation with javac 8 or older (https://github.com/codehaus-plexus/plexus-compiler/issues/140)
> # {{source}}, {{target}} and {{release}} accept different values: JDK <= 8 only supports values starting with {{1.}} while JDK 9+ accepts only {{6}}, {{7}}, {{8}}, {{9}}, ... for {{release}} and in addition also {{1.6}}, {{1.7}} and {{1.8}} for {{source}} and {{target}}.
> I propose to introduce a new parameter which hides that complexity called {{targetJavaVersion}} or similar accepting both {{1.6}}, {{1.7}} and {{1.8}} and {{6}}, {{7}}, {{8}}, {{9}}, ... and use that value (transformed accordingly) either with {{release}} for JDK9 + or with {{source}} and {{target}} for JDK < 9.
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