}

        String baseName;
        String ext = missing ? ".miss" : ".dep";
        Path trackingFile = null;

        String indent = "";
        ArrayList<String> trackingData = new ArrayList<>();

        if (collectStepTrace == null && plugin != null) {
            ext = ".plugin";

set maven.conf default ${maven.home}/conf

[plexus.core]
load       ${maven.conf}/logging
optionally ${maven.home}/lib/ext/redisson/*.jar
optionally ${maven.home}/lib/ext/hazelcast/*.jar
optionally ${user.home}/.m2/ext/*.jar
optionally ${maven.home}/lib/ext/*.jar
load       ${maven.home}/lib/maven-*.jar

 */
package org.apache.maven.eventspy;

import java.util.Map;

/**
 * A core extension to monitor Maven's execution. Typically, such an extension gets loaded into Maven by specifying the
 * property {@code maven.ext.class.path} on the command line. As soon as dependency injection is set up, Maven
 * looks up all implementers of this interface and calls their {@link #init(Context)} method. Note:

            if (extensions != null) {
                for (Extension ext : extensions) {
                    String version;
                    if (ext.getVersion() == null || ext.getVersion().isEmpty()) {
                        version = "RELEASE";
                    } else {
                        version = ext.getVersion();
                    }

        verifier.verify(logger, calls(1)).debug("  Excluded: {}", "group1:artifact2:ext:classifier1:null");
        verifier.verify(logger, calls(1))
                .debug("Populating class realm {}", "project>modelGroup1:modelArtifact1:modelVersion1");
        verifier.verify(logger, calls(1)).debug("  Included: {}", "group1:artifact1:ext:classifier1:null");
    }

    @Test

      <url>https://project.url/remote</url>
      <name>repo</name>
    </repository>
  </repositories>

  <build>
    <extensions>
      <extension>
        <groupId>org.apache.maven.its.ext</groupId>
        <artifactId>ext</artifactId>
        <version>3.0</version>
      </extension>
    </extensions>

    <defaultGoal>test</defaultGoal>
    <directory>build</directory>

        String name = path.getFileName().toString();
        int dot = name.lastIndexOf('.');
        String ext = dot >= 1 ? name.substring(dot + 1) : "";
        Artifact artifact =
                session.createArtifact(project.getGroupId(), project.getArtifactId(), project.getVersion(), ext);
        attachArtifact(project, artifact, path);
    }

      <url>https://project.url/remote</url>
      <name>repo</name>
    </repository>
  </repositories>

  <build>
    <extensions>
      <extension>
        <groupId>org.apache.maven.its.ext</groupId>
        <artifactId>ext</artifactId>
        <version>3.0</version>
      </extension>
    </extensions>

    <defaultGoal>test</defaultGoal>
    <directory>build</directory>

        assertEquals(1, ((List<?>) pom.getValue("build/extensions")).size());
        assertEquals("org.apache.maven.its.ext", pom.getValue("build/extensions[1]/groupId"));
        assertEquals("ext", pom.getValue("build/extensions[1]/artifactId"));
        assertEquals("3.0", pom.getValue("build/extensions[1]/version"));