Path nonExistentDir = tempDir.resolve("non-existent");
        themeHelper.closeQuietly(nonExistentDir);
        // Should not throw exception
        assertTrue(true);
    }

    public void test_closeQuietly_existingDirectory() throws IOException {
        Path existingDir = tempDir.resolve("existing");
        Files.createDirectory(existingDir);
        Files.createFile(existingDir.resolve("test.txt"));