private final CoreExtension extension;

    public ExtensionResolutionException(CoreExtension extension, Throwable cause) {
        super(
                "Extension " + extension.getId() + " or one of its dependencies could not be resolved: "
                        + cause.getMessage(),
                cause);
        this.extension = extension;
    }

    /**
     * Constructor accepting the new API type for internal use.

    * <a href="https://fastapi.tiangolo.com/tutorial/dependencies/dependencies-in-path-operation-decorators/" class="external-link" target="_blank">Tutorial - Dependencies - Dependencies in path operation decorators</a>.
    * <a href="https://fastapi.tiangolo.com/tutorial/dependencies/global-dependencies/" class="external-link" target="_blank">Tutorial - Dependencies - Global Dependencies</a>.

            Model m,
            List<Dependency> dependencies,
            boolean management,
            ModelBuildingRequest request) {
        Severity errOn30 = getSeverity(request, ModelBuildingRequest.VALIDATION_LEVEL_MAVEN_3_0);

        String prefix = management ? "dependencyManagement.dependencies.dependency." : "dependencies.dependency.";

        for (Dependency d : dependencies) {

                }
            }
        }

    fun getDependencies() = classes.map { it.value.outputClassFilename to it.value.dependencies.map { it.outputClassFilename } }.toMap()
}


class ClassDetails(val outputClassName: String) {
    var visited: Boolean = false
    val dependencies: MutableSet<ClassDetails> = linkedSetOf()
    val outputClassFilename
        get() = "$outputClassName.class"
}

  <artifactId>foo</artifactId>
  <groupId>foo</groupId>
  <version>99.44</version>
  <packaging>bleh</packaging>
  <dependencies>
    <dependency>
      <artifactId>artifactId</artifactId>
      <version>1.0</version>
    </dependency>
  </dependencies>

  <artifactId>foo</artifactId>
  <groupId>foo</groupId>
  <version>99.44</version>
  <packaging>bleh</packaging>
  <dependencyManagement>
    <dependencies>
      <dependency>
        <groupId>groupId</groupId>
        <version>version</version>
      </dependency>
    </dependencies>
  </dependencyManagement>

    <maven.test.skip>true</maven.test.skip>
    <updateReleaseInfo>true</updateReleaseInfo>
  </properties>

  <dependencies>
    <dependency>
      <groupId>org.apache.maven</groupId>
      <artifactId>maven-plugin-api</artifactId>
      <version>2.0</version>
    </dependency>
  </dependencies>

  <build>
    <resources>
      <resource>
        <directory>.</directory>
        <includes>

  <artifactId>t07-c</artifactId>
  <packaging>jar</packaging>
  <version>1.0</version>
  <dependencies>
    <dependency>
      <groupId>maven-test</groupId>
      <artifactId>t07-d</artifactId>
      <version>1.1</version>
      <type>jar</type>
      <scope>compile</scope>
      <optional>true</optional>
    </dependency>
  </dependencies>

  <version>99.44</version>
  <packaging>jar</packaging>

  <dependencies>
    <dependency>
      <groupId>gid</groupId>
      <artifactId>aid</artifactId>
      <version>1.0</version>
      <exclusions>
        <exclusion>
          <groupId></groupId>
        </exclusion>
      </exclusions>
    </dependency>
  </dependencies>

			</plugin>
			<plugin>
				<groupId>net.revelc.code.formatter</groupId>
				<artifactId>formatter-maven-plugin</artifactId>
			</plugin>
		</plugins>
	</build>
	<dependencies>
		<dependency>
			<groupId>org.codelibs.fess</groupId>
			<artifactId>fess-crawler</artifactId>
			<version>${project.version}</version>
		</dependency>
		<dependency>
			<groupId>org.lastaflute</groupId>