/**
     * The network name of the share.
     */
    protected String netName;
    /**
     * The type of the share (e.g., disk, printer, named pipe).
     */
    protected int type;
    /**
     * A descriptive comment or remark about the share.
     */
    protected String remark;

    /**
     * Default constructor for SMB share information.
     */
    public SmbShareInfo() {
    }

    /**

    public int errorCode;

    /**
     * Converts NetBIOS error class and code to a human-readable string.
     *
     * @param errorClass the error class
     * @param errorCode the error code
     * @return a descriptive error string
     */
    public static String getErrorString(final int errorClass, final int errorCode) {
        StringBuilder result = new StringBuilder();
        switch (errorClass) {
        case SUCCESS:

     * Provides descriptive text for each error condition.
     */
    /*
     * These aren't really used by jCIFS--
     * the map above is used to immediately
     * map to NTSTATUS codes.
     */
    /**
     * Human-readable error messages corresponding to DOS error codes.
     * Array of descriptive strings for each DOS error condition.
     */

- MsWordExtractor
- MsExcelExtractor
- MsPowerPointExtractor
- TextExtractor

**Test Count**: 8 tests

**Key Scenarios**:
- ✅ Successful extraction closes resources properly
- ✅ Failed extraction includes descriptive error messages
- ✅ Null input stream validation
- ✅ Error messages include file type context

---

### 2. FilenameExtractorEnhancedTest.java
**Purpose**: Test FilenameExtractor edge cases and new documentation.

        assertNotNull(result.getContent());
        assertTrue("Should contain test content", result.getContent().contains("テスト"));
    }

    /**
     * Test that error message format is consistent and descriptive.
     */
    public void test_errorMessage_formatIsDescriptive() {
        final InputStream errorStream = new InputStream() {
            @Override
            public int read() throws IOException {

    public int errorCode;

    /**
     * Converts NetBIOS error class and code to a human-readable string.
     *
     * @param errorClass the error class
     * @param errorCode the error code
     * @return a descriptive error string
     */
    public static String getErrorString(final int errorClass, final int errorCode) {
        StringBuilder result = new StringBuilder();
        switch (errorClass) {
        case SUCCESS:

     * Maximum length is 20 characters.
     */
    @Required
    @Size(max = 20)
    public String sessionId;

    /**
     * The name or description of the crawling session.
     * This is an optional descriptive field with a maximum length of 20 characters.
     */
    @Size(max = 20)
    public String name;

    /**
     * The expiration time for the crawling session.

        } catch (final CrawlerSystemException e) {
            assertEquals("The inputstream is null.", e.getMessage());
        }
    }

    /**
     * Test that ZipExtractor provides descriptive error message for invalid archive.
     */
    public void test_ZipExtractor_invalidArchive_throwsWithDescriptiveMessage() {
        final InputStream invalidStream = new ByteArrayInputStream("not a valid zip file".getBytes());

 * based on these entries.
 * <p>
 * To fully understand the information exposed by this class a description
 * of the access check algorithm used by Windows is required. The following
 * is a basic description of the algorithm. For a more complete description
 * we recommend reading the section on Access Control in Keith Brown's
 * "The .NET Developer's Guide to Windows Security" (which is also

    /* These aren't really used by jCIFS -- the map above is used
     * to immediately map to NTSTATUS codes.
     */
    /**
     * Human-readable error messages corresponding to DOS error codes.
     * Array of descriptive strings for each DOS error condition.
     */
    String[] DOS_ERROR_MESSAGES = { "The operation completed successfully.", "Incorrect function.", "Incorrect function.",