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Posted to issues@maven.apache.org by "Robert Scholte (Jira)" <ji...@apache.org> on 2021/04/20 15:21:00 UTC

[jira] [Closed] (MCOMPILER-373) Unable to compile MR jar code against older directories

     [ https://issues.apache.org/jira/browse/MCOMPILER-373?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Robert Scholte closed MCOMPILER-373.
------------------------------------
    Fix Version/s: 3.9.0
         Assignee: Robert Scholte
       Resolution: Fixed

Fixed in [f17b9e2d9d0c89b76fb5e8f980529534c0c109f6|https://gitbox.apache.org/repos/asf?p=maven-compiler-plugin.git;a=commit;h=f17b9e2d9d0c89b76fb5e8f980529534c0c109f6]

> Unable to compile MR jar code against older directories
> -------------------------------------------------------
>
>                 Key: MCOMPILER-373
>                 URL: https://issues.apache.org/jira/browse/MCOMPILER-373
>             Project: Maven Compiler Plugin
>          Issue Type: Bug
>    Affects Versions: 3.8.0
>            Reporter: Russell Gold
>            Assignee: Robert Scholte
>            Priority: Major
>             Fix For: 3.9.0
>
>         Attachments: reproducer.zip
>
>
> Given a project with multiple source directories, java, java9 and java11, each MR directory should compile against the previous one. In the current plugin, this only happens if the MR directory contains a module-info.java file.
> The attached reproducer expects toolchains to be set up for the jdk9 and jdk11 compilers. It fails when trying to compile the java11 directory, as the classes/META-INF/versions/9 directory is not present on its classpath.



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