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https://issues.apache.org/jira/browse/MCOMPILER-412?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17415817#comment-17415817
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Anand Beh commented on MCOMPILER-412:
-------------------------------------
FYI for anyone else who happened across this issue, there is a temporary
workaround using the maven-dependency-plugin and specifying the
processor-module-path via a property:
{code:java}
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<executions>
<execution>
<id>set-processorpath-variable</id>
<phase>initialize</phase>
<goals>
<goal>build-classpath</goal>
</goals>
<configuration>
<outputProperty>processor-module-path</outputProperty>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<compilerArgs>
<compilerArg>--processor-module-path</compilerArg>
<compilerArg>${processor-module-path}</compilerArg>
</compilerArgs>
</configuration>
</plugin>
{code}
This worked for my simple use-case.
> Support --process-module-path
> -----------------------------
>
> Key: MCOMPILER-412
> URL: https://issues.apache.org/jira/browse/MCOMPILER-412
> Project: Maven Compiler Plugin
> Issue Type: Improvement
> Affects Versions: 3.8.0, 3.8.1
> Reporter: remi forax
> Priority: Major
>
> {quote}
> In the modular world, javac will look for annotation processor in the
> module-path (only if the annotation processor module is required by the
> module-info, you can use "required static" or uses with the service) and
> javac will also look to the --processor-module-path with again a nice
> separation because the source code doesn't see the module inside the module.
> Everything works cleanly if there is no module-info.java, if you have a
> module-info.java, you have two cases
> 1) your annotation processor is itself a module, if you do a requires on it,
> Maven will put it in the module-path, so it will work (but there is no nice
> separation provided by --processor-module-path)
> 2) your annotation processor is not a module, you can do a require on it but
> Maven will not put it on the module-path because it's not a module, so you
> have to use the <processor-path> of the Maven compiler plugin
> {quote}
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