Path beforePomFile =
                Paths.get("src/test/resources/projects/transform/before.pom").toAbsolutePath();
        Path afterPomFile =
                Paths.get("src/test/resources/projects/transform/after.pom").toAbsolutePath();
        Path tempFile = Files.createTempFile("", ".pom");
        Files.delete(tempFile);

        MountableFile mountableUsers = MountableFile.forHostPath(usersDir.toAbsolutePath().toString());
        MountableFile mountableTestuser1 = MountableFile.forHostPath(testuser1Dir.toAbsolutePath().toString());
        MountableFile mountableTestuser2 = MountableFile.forHostPath(testuser2Dir.toAbsolutePath().toString());

    private MavenSession newMavenSession() throws Exception {
        return createMavenSession(null);
    }

    @Test
    public void testUri() throws Exception {
        Path path = Paths.get("").toAbsolutePath();

        MavenSession mavenSession = createMavenSession(null);
        mavenSession.getRequest().setTopDirectory(path);
        mavenSession.getRequest().setRootDirectory(path);

        assertInstanceOf(Path.class, ee.evaluate("${session.rootDirectory}"));
    }

    @Test
    public void testUri() throws Exception {
        Path path = Paths.get("").toAbsolutePath();

        MavenSession mavenSession = createMavenSession(null);
        mavenSession.getRequest().setTopDirectory(path);
        mavenSession.getRequest().setRootDirectory(path);

        MountableFile mountableUsers = MountableFile.forHostPath(usersDir.toAbsolutePath().toString());
        MountableFile mountableTestuser1 = MountableFile.forHostPath(testuser1Dir.toAbsolutePath().toString());
        MountableFile mountableTestuser2 = MountableFile.forHostPath(testuser2Dir.toAbsolutePath().toString());

                    .resolve(string.substring(2))
                    .normalize()
                    .toAbsolutePath();
        } else {
            // resolve based on $CWD
            return Paths.get(string).normalize().toAbsolutePath();
        }
    }

    private VersionFilter buildVersionFilter(String filterExpression) {

        assertArgumentNotNull("pathToCheck", pathToCheck);
        assertArgumentNotNull("baseDirectory", baseDirectory);

        final Path normalizedPath = pathToCheck.toAbsolutePath().normalize();
        final Path normalizedBase = baseDirectory.toAbsolutePath().normalize();
        return normalizedPath.startsWith(normalizedBase);
    }

    /**
     * Validates that a given file is safe and does not attempt path traversal attacks.

	  public static void main( String[] args ) throws Exception
	  {
	    setDefault( new Downloader() );
	    java.nio.file.Files.copy( java.net.URI.create( args[0] ).toURL().openStream(), java.nio.file.Paths.get( args[1] ).toAbsolutePath().normalize() );
	  }
	}
	END
  # For Cygwin/MinGW, switch paths to Windows format before running javac and java
  verbose " - Compiling Downloader.java ..."

                } else {
                    Path topDirectory = mavenSession.getTopDirectory();
                    Path locationPath = Paths.get(location).toAbsolutePath().normalize();
                    if (locationPath.startsWith(topDirectory)) {
                        locationPath = topDirectory.relativize(locationPath);
                    }

            File currentPom = project.getFile();
            if (currentPom != null) {
                MavenSession session = event.getSession();
                Path current = currentPom.toPath().toAbsolutePath().normalize();
                Path topDirectory = session.getTopDirectory();
                if (topDirectory != null && current.startsWith(topDirectory)) {
                    current = topDirectory.relativize(current);