maven maven-plugin java-17 plexus eclipse-sisu

Bindings with Eclipse Sisu for Maven Plugin do not work for Java 17

Reproducible at: GitHub

I have a simple setup of a custom Maven plugin execution where I use PlexusContainer to perform a lookup for the defined containers.

import javax.inject.Inject;

...

@Mojo(
    name = "process-sources",
    defaultPhase = LifecyclePhase.PROCESS_SOURCES,
    instantiationStrategy = InstantiationStrategy.PER_LOOKUP,
    threadSafe = true
)
public class ProcessSourcesMojo extends AbstractMojo {

    @Inject
    private PlexusContainer container;

    @Parameter
    private String componentName;

    ...

    @Override
    public void execute() throws MojoExecutionException, MojoFailureException {
        if (container.hasComponent(MyComponent.class, componentName)) {
            try {
                final AbstractComponent myComponent = container.lookup(AbstractComponent.class, componentName);
                // USE THE COMPONENT
            } catch (ComponentLookupException e) {
                throw new IllegalArgumentException(e);
            }
        }
    }
}

I don't want to @Inject a particular one but rather resolve by type and name. The components are properly defined, for example:

@Named("myComponent")
public class MyComponent extends AbstractComponent {
}

Problem:

The whole problem lies in the used Java version as the newer Java versions cannot register the components properly.

Java 8: container.hasComponent(MyComponent.class, "myComponent") -> true
Java 17: container.hasComponent(MyComponent.class, "myComponent") -> false

Background:

I discovered that maven-plugin-plugin is responsible for generating descriptors picked up during the components scan. I have the following configuration:

<plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-plugin-plugin</artifactId>
    <version>3.9.0</version>
    <configuration>
        <skipErrorNoDescriptorsFound>true</skipErrorNoDescriptorsFound>
    </configuration>
    <executions>
        <execution>
            <id>descriptor-help</id>
            <goals>
                <goal>helpmojo</goal>
            </goals>
        </execution>
    </executions>
</plugin>

I also use Eclipse Sisu plugin as suggested:

<plugin>
    <groupId>org.eclipse.sisu</groupId>
    <artifactId>sisu-maven-plugin</artifactId>
</plugin>

Dependencies

The minimum supported Maven version is 3.5.4.

org.apache.maven:maven-artifact:3.5.4:compile
org.apache.maven:maven-plugin-api:3.5.4:compile
org.apache.maven:maven-core:3.5.4:compile
org.apache.maven:maven-model:3.5.4:provided
org.apache.maven:maven-model-builder:3.5.4:provided
org.apache.maven:maven-settings:3.5.4:provided

org.apache.maven.plugin-tools:maven-plugin-annotations:3.6.1:provided

org.codehaus.plexus:plexus-utils:4.0.0:compile
org.codehaus.plexus:plexus-xml:3.0.0:compile
org.codehaus.plexus:plexus-classworlds:2.5.2:provided

org.eclipse.sisu:org.eclipse.sisu.plexus:0.9.0:M2:provided

javax.inject:javax.inject:1:provided
javax.annotation:javax.annotation-api:1.3.2:provided

I tried to update the versions up and down, but no luck with running on Java 17. What is the correct combination? Is Java 17 even supported?

Solution

When you want to compile Maven plugin for JDK 17+ you must use a Maven 3.9.6+ for executing.