[jira] [Updated] (MCOMPILER-474) Dependent modules are not recompiled if we run the "package" goal

["Olivier Lamy (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/MCOMPILER-474?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Olivier Lamy updated MCOMPILER-474:
-----------------------------------
    Fix Version/s: 3.9.1

> Dependent modules are not recompiled if we run the "package" goal
> -----------------------------------------------------------------
>
>                 Key: MCOMPILER-474
>                 URL: https://issues.apache.org/jira/browse/MCOMPILER-474
>             Project: Maven Compiler Plugin
>          Issue Type: Bug
>    Affects Versions: 3.8.1
>            Reporter: Roman Kozlov
>            Assignee: Olivier Lamy
>            Priority: Major
>             Fix For: 3.9.1
>
>
> Suppose we have a project with two modules: "Lib" and "App", App depends on Lib. And we ran {{mvn clean install}} earlier. Then we changed something in Lib sources. Now consider these two scenarios:
> * If we run {{mvn compile}}: Lib gets recompiled, then App gets recompiled - all good.
> * If we run {{mvn package}}: Lib gets recompiled, but App doesn't ("Nothing to compile - all classes are up to date") - a bug.
> The problem here is that if the current build requests packaging a jar then Lib is added to App's {{compilePath}} as {{.../lib/target/lib-x.y.z.jar}} (instead of {{.../lib/target/classes}} in case of "compile" goal). And the {{isDependencyChanged()}} function in AbstractCompilerMojo only checks class files, not jars.
> This can be reproduced using the existing integration test https://github.com/apache/maven-compiler-plugin/tree/master/src/it/MCOMPILER-349_dependencyChanged, you'll just need to replace "compile" with "package" in the invoker.properties file.



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