if (testFileUrl == null) {
      throw new RuntimeException("unable to locate testdata directory");
    }

    if (testFileUrl.getProtocol().equals("file")) {
      try {
        File testFile = new File(testFileUrl.toURI());
        testDir = testFile.getParentFile(); // the testdata directory
      } catch (Exception ignore) {
        // probably URISyntaxException or IllegalArgumentException

    /**
     * Locates the POM file within the specified project directory. In case the given project directory does not exist
     * or does not contain a POM file, the return value indicates the expected path to the POM file. Subdirectories of
     * the project directory will not be considered when locating the POM file. The return value will be an absolute
     * path if the project directory is given as an absolute path.
     *

    }

    /**
     * Returns the current working directory for the Maven execution.
     * This is typically the directory from which Maven was invoked.
     *
     * @return the current working directory path
     */
    @Nonnull
    Path cwd();

    /**
     * Returns the Maven installation directory.
     * This is usually set by the Maven launcher script using the "maven.home" system property.

   * being a real directory to being a symlink to another directory. It then calls
   * deleteDirectoryContents thousands of times on a directory whose subtree contains the file
   * that's switching between directory and symlink to try to ensure that under no circumstance does
   * deleteDirectoryContents follow the symlink to the other directory and delete that directory's
   * contents.
   *

 []

 Depending on what the directory represents ("groupId", "groupId/artifactId" or "groupId/artifactId/version"),
 the Maven Repository Metadata file contains 3 different sets of metadata:

 [[1]] in a "groupId" directory: a "groupId" directory may contain Maven plugins artifacts, which are described in metadata's <<<plugins>>> element,

      currentPath.add(directory.getCanonicalFile());
      scanDirectory(directory, "", currentPath, builder);
    }

    /**
     * Recursively scan the given directory, adding resources for each file encountered. Symlinks
     * which have already been traversed in the current tree path will be skipped to eliminate
     * cycles; otherwise symlinks are traversed.
     *
     * @param directory the root of the directory to scan

    /**
     * Sets the root directory of the project.
     *
     * @since 4.0.0
     */
    MavenExecutionRequest setRootDirectory(Path rootDirectory);

    /**
     * Gets the root directory of the top project, which is the parent directory containing the {@code .mvn}
     * directory or a {@code pom.xml} file with the {@code root="true"} attribute.

/**
 * Resolves relative paths against a specific base directory.
 *
 * @deprecated use {@link org.apache.maven.api.services.ModelBuilder} instead
 */
@Deprecated(since = "4.0.0")
public interface PathTranslator {

    /**
     * Resolves the specified path against the given base directory. The resolved path will be absolute and uses the
     * platform-specific file separator if a base directory is given. Otherwise, the input path will be returned

   * create a directory, not a regular file. A common pitfall is to call {@code createTempFile},
   * delete the file and create a directory in its place, but this leads a race condition which can
   * be exploited to create security vulnerabilities, especially when executable files are to be
   * written into the directory.
   *

	d.dirRecordsThisDisk = b.uint64() // total number of entries in the central directory on this disk
	d.directoryRecords = b.uint64()   // total number of entries in the central directory
	d.directorySize = b.uint64()      // size of the central directory
	d.directoryOffset = b.uint64()    // offset of start of central directory with respect to the starting disk number

	return nil