<name>classLoadingStrategy</name>
          <description>The class loading strategy: 'self-first' (the default), 'parent-first' (loads classes from the parent, then from the extension) or 'plugin' (follows the rules from extensions defined as plugins).</description>
          <version>1.1.0+</version>
          <defaultValue>self-first</defaultValue>
          <required>false</required>
          <type>String</type>
        </field>

  <defaults>
    <default>
      <key>package</key>
      <value>org.apache.maven.usability.plugin</value>
    </default>
  </defaults>
  <classes>
    <class rootElement="true" xml.tagName="paramdoc">
      <version>1.0.0</version>
      <name>ExpressionDocumentation</name>
      <description>The root of a parameter plugin expression document.</description>

Marshmallow und Webargs bieten Validierung, Parsen und Serialisierung als Plugins.

Es fehlt jedoch noch die Dokumentation. Dann wurde APISpec erstellt.

Es ist ein Plugin für viele Frameworks (und es gibt auch ein Plugin für Starlette).

    private boolean includesDependencies;

    private String language;

    @Deprecated
    private boolean addedToClasspath;

    /**
     * Default ctor for Plexus compatibility, as many plugins have artifact handlers declared in legacy Plexus XML.
     * Do not use directly!
     *
     * @deprecated This ctor is present only for Plexus XML defined component compatibility, do not use it.
     */
    @Deprecated

        pd.setArtifactId("my-plugin");
        pd.setGroupId("org.myco.plugins");
        pd.setVersion("1");

        DefaultArtifact artifact = new DefaultArtifact(
                pd.getGroupId(),
                pd.getArtifactId(),
                pd.getVersion(),
                "compile",
                "maven-plugin",
                "",

        problems.setSource("");

        userSettings = interpolate(userSettings, request, problems);

        // for the special case of a drive-relative Windows path, make sure it's absolute to save plugins from trouble
        String localRepository = userSettings.getLocalRepository();
        if (localRepository != null && !localRepository.isEmpty()) {
            File file = new File(localRepository);

### Platform architecture

Gradle is arranged into several coarse-grained components called "platforms".
Each platform provides support for some kind of automation, such as building JVM software or building Gradle plugins.
Platforms typically extend the features of other platforms to add this support.

~~ TODO document META-INF/maven/slf4j-configuration.properties

* Getting Logger Instance

 Starting with Maven 3.1.0, SLF4J Logger can be used directly. This technique can be used safely in Maven core
 components or in plugins/component not requiring compatibility with previous Maven versions.

+-----+
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class MyClass
{

        if (defaultWhenNoOptionsSpecified
                && options.infer().isEmpty()
                && options.model().isEmpty()
                && options.plugins().isEmpty()
                && options.model().isEmpty()) {
            return true;
        }

        return false;
    }

    /**
     * Gets a description of what this strategy does.
     *

        private
        const val RESOURCE = "/default-imports.txt"

        private
        const val PLUGINS_BLOCK_SIGNATURE =
            "void plugins(@groovy.transform.stc.ClosureParams(value = groovy.transform.stc.SimpleType.class, options = 'org.gradle.plugin.use.PluginDependenciesSpec') Closure configuration) {}"

        /**
         * Logic duplicated from [org.gradle.configuration.DefaultImportsReader].