try {
            tikaExtractor.getText(in, null);
            fail();
        } catch (final ExtractException e) {
            logger.info(e.getMessage());
        }
    }

    public void test_getTika_tar() {
        final InputStream in = ResourceUtil.getResourceAsStream("extractor/tar/test.tar");
        final ExtractData extractData = tikaExtractor.getText(in, null);

                createDefaultReadingConverter(), createDefaultNormalizer());
        SuggestItem item = items.get(0);
        assertEquals("検索エンジン", item.getText());
        assertEquals(SuggestItem.Kind.QUERY, item.getKinds()[0]);
        assertEquals(1, item.getQueryFreq());
    }

    @Test
    public void test_parseQueryLog2Word() throws Exception {

            final InputStream trackableStream = createTrackableInputStream(originalStream, streamClosed);
            final ExtractData result = extractor.getText(trackableStream, null);

            assertNotNull(result);
            assertNotNull(result.getContent());
            assertTrue(result.getContent().contains("テスト"));
        }
    }

    /**

    /**
     * Test that ZipExtractor handles null input stream with appropriate error message.
     */
    public void test_ZipExtractor_nullInputStream_throwsWithMessage() {
        try {
            zipExtractor.getText(null, null);
            fail("Expected CrawlerSystemException");
        } catch (final CrawlerSystemException e) {
            assertEquals("The inputstream is null.", e.getMessage());
        }
    }

    /**

     */
    public PdfExtractor() {
        super();
    }

    /*
     * (non-Javadoc)
     *
     * @see org.codelibs.fess.crawler.extractor.Extractor#getText(java.io.InputStream,
     * java.util.Map)
     */
    @Override
    public ExtractData getText(final InputStream in, final Map<String, String> params) {
        if (in == null) {

        elevateWord = new ElevateWord(word, boost, readings, fields, tags, roles);
        SuggestItem suggestItem = elevateWord.toSuggestItem();

        assertNotNull(suggestItem);
        assertEquals(word, suggestItem.getText());
        assertEquals(boost, suggestItem.getUserBoost(), 0.001f);
        // The queryFreq and docFreq might be handled differently by SuggestItem
        assertTrue(suggestItem.getQueryFreq() >= 0);

        SuggestItem item = new SuggestItem(text, readings, null, 0L, 0L, 1.0f, null, null, null, SuggestItem.Kind.USER);

        // Test text
        item.setText("sample text");
        assertEquals("sample text", item.getText());

        // Test timestamp
        ZonedDateTime now = ZonedDateTime.now();
        item.setTimestamp(now);
        assertEquals(now, item.getTimestamp());

    .setSize(10)                        // max suggestions
    .execute()
    .getResponse();

// Process suggestions
response.getItems().forEach(item -> {
    System.out.println("Suggestion: " + item.getText()[0]);
    System.out.println("Score: " + item.getScore());
});
```

#### 4. Asynchronous Suggestions

```java
suggester.suggest()
    .setQuery("sea")
    .execute()
    .done(response -> {

     */
    public EmlExtractor() {
        // Default constructor
    }

    /* (non-Javadoc)
     * @see org.codelibs.robot.extractor.Extractor#getText(java.io.InputStream, java.util.Map)
     */
    @Override
    public ExtractData getText(final InputStream in, final Map<String, String> params) {
        final Properties props = new Properties(mailProperties);
        if (params != null) {

        extensionMap.put(inExt, outExt);
    }

    /*
     * (non-Javadoc)
     *
     * @see org.codelibs.fess.crawler.extractor.Extractor#getText(java.io.InputStream,
     * java.util.Map)
     */
    @Override
    public ExtractData getText(final InputStream in, final Map<String, String> params) {
        if (in == null) {