// "C:foo" ("C:" - working dir of drive C on Windows)
      return parent;
    }

    // Paths that don't have a parent:
    if (path.getNameCount() == 0) {
      // "/", "C:\", "\" (no parent)
      // "" (undefined, though typically parent of working dir)
      // "C:" (parent of working dir of drive C on Windows)
      //
      // For working dir paths ("" and "C:"), return null because:

        }
    }

    private void deleteDirectory(File dir) {
        if (dir.isDirectory()) {
            File[] files = dir.listFiles();
            if (files != null) {
                for (File file : files) {
                    deleteDirectory(file);
                }
            }
        }
        dir.delete();
    }

		expectedErr error
	}{
		{".test", "dir/obj", BucketNameInvalid{Bucket: ".test"}},
		{"----", "dir/obj", BucketNameInvalid{Bucket: "----"}},
		{"bucket", "", ObjectNameInvalid{Bucket: "bucket", Object: ""}},
		{"bucket", "doesnotexist", ObjectNotFound{Bucket: "bucket", Object: "doesnotexist"}},
		{"bucket", "dir/doesnotexist", ObjectNotFound{Bucket: "bucket", Object: "dir/doesnotexist"}},
		{"bucket", "dir", ObjectNotFound{Bucket: "bucket", Object: "dir"}},

XL2 
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                    return FileVisitResult.CONTINUE;
                }
            }

            @Override
            public FileVisitResult preVisitDirectory(Path dir, BasicFileAttributes attrs) throws IOException {
                if (Paths.get("target").equals(dir)) {
                    return FileVisitResult.CONTINUE;
                } else {
                    return FileVisitResult.SKIP_SUBTREE;
                }
            }

            return builder.build()
        }

        private
        fun processDirectory(dir: Path, builder: Trie.Builder) {
            Files.walkFileTree(dir, object : SimpleFileVisitor<Path>() {
                override fun visitFile(file: Path, attrs: BasicFileAttributes): FileVisitResult {
                    val zipEntry = ZipEntry(dir.relativize(file).toString())
                    processEntry(zipEntry, builder)

  }

  /**
   * Creates a new temp dir for testing. The returned directory and all contents of it will be
   * deleted in the tear-down for this test.
   */
  protected final File createTempDir() throws IOException {
    File tempFile = File.createTempFile("IoTestCase", "");
    if (!tempFile.delete() || !tempFile.mkdir()) {
      throw new IOException("failed to create temp dir");
    }
    filesToDelete.add(tempFile);

    @InputFiles
    @Optional
    public FileCollection getNoticeFiles() {
        FileTree tree = null;
        for (File dir : licensesDirs) {
            if (tree == null) {
                tree = getProject().fileTree(dir);
            } else {
                tree = tree.plus(getProject().fileTree(dir));
            }
        }

                sourceFiles.forEach { dir ->
                    check(Files.isDirectory(dir)) { "Must be a directory" }
                    Files.walkFileTree(dir, object : SimpleFileVisitor<Path>() {
                        override fun visitFile(file: Path, attrs: BasicFileAttributes): FileVisitResult {
                            val entryName = dir.relativize(file).joinToString(separator = "/") { it.toString() }

        assertEquals("xxx789zzz", ResourceUtil.resolve(value));

        value = "${\\$}";
        assertEquals(value, ResourceUtil.resolve(value));

        System.setProperty("test.dir", "c:\\test1\\test2");

        value = "${test.dir}";
        assertEquals("c:\\test1\\test2", ResourceUtil.resolve(value));

    }

    @Test
    public void test_getAppType() {
        // Test default empty when no env var is set