<name>Maven 4 API :: Toolchain</name>
  <description>Maven 4 API - Immutable Toolchain model.</description>

  <dependencies>
    <dependency>
      <groupId>org.apache.maven</groupId>
      <artifactId>maven-api-annotations</artifactId>
    </dependency>
    <dependency>
      <groupId>org.apache.maven</groupId>
      <artifactId>maven-api-xml</artifactId>
    </dependency>
  </dependencies>

import org.apache.maven.artifact.repository.metadata.ArtifactRepositoryMetadata;
import org.apache.maven.artifact.repository.metadata.MetadataBridge;
import org.apache.maven.artifact.repository.metadata.Snapshot;
import org.apache.maven.artifact.repository.metadata.SnapshotArtifactRepositoryMetadata;
import org.apache.maven.artifact.repository.metadata.Versioning;
import org.apache.maven.plugin.LegacySupport;

    ```


[home]: https://maven.apache.org/
[license]: https://www.apache.org/licenses/LICENSE-2.0
[build]: https://ci-maven.apache.org/job/Maven/job/maven-box/job/maven/job/master/
[build-4.0]: https://ci-maven.apache.org/job/Maven/job/maven-box/job/maven/job/maven-4.0.x/
[build-3.10]: https://ci-maven.apache.org/job/Maven/job/maven-box/job/maven/job/maven-3.10.x/

  <packaging>pom</packaging>

  <name>Maven Compatibility Modules</name>

  <modules>
    <module>maven-plugin-api</module>
    <module>maven-builder-support</module>
    <module>maven-model</module>
    <module>maven-model-builder</module>
    <module>maven-settings</module>
    <module>maven-settings-builder</module>
    <module>maven-artifact</module>
    <module>maven-resolver-provider</module>

import org.apache.maven.plugin.InvalidPluginDescriptorException;
import org.apache.maven.plugin.MojoNotFoundException;
import org.apache.maven.plugin.PluginDescriptorParsingException;
import org.apache.maven.plugin.PluginNotFoundException;
import org.apache.maven.plugin.PluginResolutionException;
import org.apache.maven.plugin.descriptor.MojoDescriptor;

  <name>Maven 4 API :: Plugin</name>
  <description>Maven 4 API - Immutable Plugin model.</description>

  <dependencies>
    <dependency>
      <groupId>org.apache.maven</groupId>
      <artifactId>maven-api-annotations</artifactId>
    </dependency>
    <dependency>
      <groupId>org.apache.maven</groupId>
      <artifactId>maven-api-xml</artifactId>
    </dependency>
    <dependency>

import org.apache.maven.artifact.handler.manager.ArtifactHandlerManager;
import org.apache.maven.artifact.repository.ArtifactRepository;
import org.apache.maven.artifact.repository.ArtifactRepositoryPolicy;
import org.apache.maven.impl.resolver.artifact.MavenArtifactProperties;
import org.eclipse.aether.DefaultRepositorySystemSession;
import org.eclipse.aether.RepositorySystem;
import org.eclipse.aether.RepositorySystemSession;

thoroughly before moving to code.

Some examples of types of pull requests that are immediately helpful:

  - Fixing a bug without changing a public API.
  - Fixing or improving documentation.
  - Improvements to Maven configuration.

Guidelines for any code contributions:

1.  Any significant changes should be accompanied by tests. The project already
    has good test coverage, so look at some existing tests if you're unsure how

import org.apache.maven.api.Packaging;
import org.apache.maven.api.Type;
import org.apache.maven.api.model.Dependency;
import org.apache.maven.api.model.InputLocation;
import org.apache.maven.api.model.Plugin;
import org.apache.maven.api.model.PluginContainer;
import org.apache.maven.api.model.PluginExecution;
import org.apache.maven.api.services.Lookup;
import org.apache.maven.api.services.PackagingRegistry;

import java.util.stream.Stream;

import org.apache.maven.api.Lifecycle;
import org.apache.maven.api.cli.InvokerException;
import org.apache.maven.api.cli.ParserRequest;
import org.apache.maven.api.di.Named;
import org.apache.maven.api.di.Singleton;
import org.apache.maven.api.services.LifecycleRegistry;
import org.apache.maven.api.services.LookupException;
import org.apache.maven.cling.invoker.LookupContext;