assertNull(result);
    }

    @Test
    void testGetByNameWithValidEntry() throws IOException {
        // Create a temporary lmhosts file
        File lmhostsFile = tempDir.resolve("lmhosts").toFile();
        try (FileWriter writer = new FileWriter(lmhostsFile)) {
            writer.write("192.168.1.100 TESTHOST\n");
            writer.write("10.0.0.1      SERVER01\n");
        }

    @Override
    public void setUp() throws Exception {
        super.setUp();
        tempDir = Files.createTempDirectory("thumbnail-test");
        tempOutputFile = Files.createTempFile(tempDir, "thumbnail", ".png").toFile();

        // Create a test implementation of ThumbnailGenerator
        thumbnailGenerator = new TestThumbnailGenerator();
    }

    @Override
    public void tearDown() throws Exception {

    assertThat(ClassPath.toFile(new URL("file:///c:\\Documents ~ Settings, or not\\11-12 12:05")))
        .isEqualTo(new File("/c:\\Documents ~ Settings, or not\\11-12 12:05"));
    assertThat(ClassPath.toFile(new URL("file:///C:\\Program Files\\Apache Software Foundation")))
        .isEqualTo(new File("/C:\\Program Files\\Apache Software Foundation/"));

    @Override
    File createTempDir() {
      try {
        return java.nio.file.Files.createTempDirectory(
                Paths.get(JAVA_IO_TMPDIR.value()), /* prefix= */ null, directoryPermissions.get())
            .toFile();
      } catch (IOException e) {
        throw new IllegalStateException("Failed to create directory", e);
      }
    }

    @Override
    File createTempFile(String prefix) throws IOException {

            if (varPath != null) {
                baseDir = new File(varPath, THUMBNAILS_DIR_NAME);
            } else {
                baseDir = ResourceUtil.getThumbnailPath().toFile();
            }
        }
        if (baseDir.mkdirs()) {
            logger.info("Created: {}", baseDir.getAbsolutePath());
        }
        if (!baseDir.isDirectory()) {

     */
    public static File[] getPluginJarFiles(final FilenameFilter filter) {
        final File libDir = getPluginPath().toFile();
        if (!libDir.exists()) {
            return new File[0];
        }
        return libDir.listFiles(filter);
    }

    /**
     * Resolves system properties in a given string.

    private File tempDir;

    @Override
    public void setUp() throws Exception {
        super.setUp();

        // Create temp directory for testing
        tempDir = Files.createTempDirectory("thumbnail_test").toFile();
        tempDir.deleteOnExit();

        // Create a test thumbnail manager with minimal initialization
        thumbnailManager = new TestThumbnailManager();
        thumbnailManager.baseDir = tempDir;

  val directory: File
    get() = cache.directory.toFile()

  @get:JvmName("directoryPath")
  val directoryPath: Path
    get() = cache.directory

  @JvmName("-deprecated_directory")
  @Deprecated(
    message = "moved to val",
    replaceWith = ReplaceWith(expression = "directory"),
    level = DeprecationLevel.ERROR,
  )
  fun directory(): File = cache.directory.toFile()

            // Read and verify file content
            List<String> lines = new ArrayList<>();
            try (BufferedReader reader =
                    new BufferedReader(new InputStreamReader(new FileInputStream(tempFile.toFile()), Constants.CHARSET_UTF_8))) {
                String line;
                while ((line = reader.readLine()) != null) {
                    lines.add(line);
                }
            }

     * @return The base directory above the root package.
     */
    protected static File getBaseDir(final URL url, final String baseName) {
        assertArgumentNotNull("url", url);

        File file = URLUtil.toFile(url);
        final String[] paths = StringUtil.split(baseName, "/");
        for (final String path : paths) {
            file = file.getParentFile();
        }
        return file;
    }

    /**