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

    @Override
    public void tearDown() throws Exception {
        // Clean up temp files
        if (tempOutputFile != null && tempOutputFile.exists()) {
            tempOutputFile.delete();
        }
        if (tempDir != null) {

    private MockPopularWordHelper mockPopularWordHelper;
    private File tempDir;

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

        // Create temp directory for testing first
        tempDir = File.createTempFile("suggestjob_test", "");
        tempDir.delete();
        tempDir.mkdirs();
        tempDir.deleteOnExit();

        // Create mock objects

esac

# prepare tmp dir
if TMP_DOWNLOAD_DIR="$(mktemp -d)" && [ -d "$TMP_DOWNLOAD_DIR" ]; then
  clean() { rm -rf -- "$TMP_DOWNLOAD_DIR"; }
  trap clean HUP INT TERM EXIT
else
  die "cannot create temp dir"
fi

mkdir -p -- "${MAVEN_HOME%/*}"

# Download and Install Apache Maven
verbose "Couldn't find MAVEN_HOME, downloading and installing it ..."
verbose "Downloading from: $distributionUrl"

                final File propFile = ComponentUtil.getSystemHelper().createTempFile("suggest_", ".properties");
                if (propFile.delete() && logger.isDebugEnabled()) {
                    logger.debug("Deleted a temp file: {}", propFile.getAbsolutePath());
                }
                systemProperties.reload(propFile.getAbsolutePath());
                propFile.deleteOnExit();
            } catch (final Exception e) {

        @Override
        int readTrailerWireFormat(InputStream in, byte[] buffer, int bufferIndex) throws IOException {
            // Simple mock implementation
            byte[] temp = new byte[length];
            int read = in.read(temp, 0, length);
            if (read < length) {
                throw new IOException("Incomplete trailer data");
            }
            trailerBytesRead = read;
            return read;

        if (manager != null) {
            manager.shutdown();
        }

        // Clean up system property
        System.clearProperty("jcifs.smb.client.handleStateDirectory");

        // Clean up temp directory
        if (tempDir != null && Files.exists(tempDir)) {
            Files.walk(tempDir)
                    .sorted((a, b) -> b.compareTo(a)) // Delete files before directories
                    .forEach(path -> {

      return File.createTempFile(
          /* prefix= */ prefix,
          /* suffix= */ null,
          /* directory= */ null /* defaults to java.io.tmpdir */);
    }

    /** Maximum loop count when creating temp directories. */
    private static final int TEMP_DIR_ATTEMPTS = 10000;
  }

  private static final class ThrowingCreator extends TempFileCreator {
    private static final String MESSAGE =

    }

    public void test_getInputsValue_withNullInputs() {
        // Create item and then set inputs to null via reflection or subclass
        CharMappingItem item = new CharMappingItem(1L, new String[] { "temp" }, "output") {
            @Override
            public String getInputsValue() {
                // Simulate null inputs scenario
                if (getInputs() == null) {

    protected void deleteTempDir(final File ownTmpDir) {
        if (ownTmpDir == null) {
            return;
        }
        if (!FileUtils.deleteQuietly(ownTmpDir)) {
            logger.warn("Could not delete a temp dir: {}", ownTmpDir.getAbsolutePath());
        }
    }

    /**
     * Appends JAR files from the specified directory to the classpath buffer.
     *
     * @param cpSeparator the classpath separator to use

    private ThumbnailManager thumbnailManager;
    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