matrix:
        os: [ubuntu-latest, windows-latest, macOS-latest]
      fail-fast: false

    runs-on: ${{ matrix.os }}

    steps:
      - uses: actions/checkout@v4
        with:
          persist-credentials: false

      - uses: actions/setup-java@v4
        with:
          java-version: 17
          distribution: 'temurin'
          cache: 'maven'

      - name: Build with Maven

      matrix:
        os: [ubuntu-latest, windows-latest]
        java: [17, 21]
      fail-fast: false

    runs-on: ${{ matrix.os }}

    steps:
      - uses: actions/checkout@v4
        with:
          persist-credentials: false

      - uses: actions/setup-java@v4
        with:
          java-version: ${{ matrix.java }}
          distribution: 'temurin'
          cache: 'maven'

      - name: Build with Maven

 * tools to pre-populate this repository
 *
 * h3. create an isolated classloader
 *
 * h3. lookup the plugin with a configuration
 *
 * h3. execute the plugin
 *
 * h3. plugins may have to deal with particular actions when a plugin is - installed - loaded -
 * unloaded - update - uninstalled
 *
 * h3. plugins should be able to have specific metadata for a plugin model and that be translated -

     * @param options The options to use for deserialization, may be {@code null} to use the default values.
     * @return The deserialized metadata, never {@code null}.
     * @throws IOException If the metadata could not be deserialized.
     * @throws MetadataParseException If the input format could not be parsed.
     */
    Metadata read(File input, Map<String, ?> options) throws IOException, MetadataParseException;

~~ under the License.

 -----
 Inheritance in Maven
 -----
 The Maven Team
 -----

Inheritance in Maven

 In order the understand how inheritance works in Maven there are a few notions that you must be familiar with:

 * The maven super model

 * how parent poms are processed

 * the order in which elements in the POM are overridden

 * minimum element-set for a valid project pom

import org.slf4j.LoggerFactory;

/**
 * The concern of the project is provide runtime values based on the model.
 * <p>
 * The values in the model remain untouched but during the process of building a project notions like inheritance and
 * interpolation can be added. This allows to have an entity which is useful in a runtime while preserving the model so
 * that it can be marshalled and unmarshalled without being tainted by runtime requirements.

            } catch (Exception | LinkageError e) {
                logError("close", e, eventSpy);
            }
        }
    }

    private void logError(String action, Throwable e, EventSpy spy) {
        String msg = "Failed to " + action + " spy " + spy.getClass().getName() + ": " + e.getMessage();

        if (logger.isDebugEnabled()) {
            logger.warn(msg, e);
        } else {
            logger.warn(msg);

Apache License Version 2.0, January 2004 http://www.apache.org/licenses/ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 1. Definitions. "License" shall mean the terms and conditions for use, reproduction, and distribution as defined by Sections 1 through 9 of this document. "Licensor" shall mean the copyright owner or entity authorized by the copyright owner that is granting the License. "Legal Entity" shall mean the union of the acting entity and all other entities that control, are controlled...

 */
public interface DependencyManagementImporter {

    /**
     * Imports the specified dependency management sections into the given target model.
     *
     * @param target The model into which to import the dependency management section, must not be <code>null</code>.
     * @param sources The dependency management sections to import, may be <code>null</code>.

        if (metadata != null && metadata.getFile() != null && metadata.getFile().isFile()) {
            try {
                Map<String, ?> options = Collections.singletonMap(MetadataReader.IS_STRICT, Boolean.FALSE);

                Metadata pluginGroupMetadata = metadataReader.read(metadata.getFile(), options);

                List<org.apache.maven.artifact.repository.metadata.Plugin> plugins = pluginGroupMetadata.getPlugins();