- `http/HcHttpClient.java`, `fs/FileSystemClient.java`, `storage/StorageClient.java`

**DI Config**: `fess-crawler-lasta/src/main/resources/crawler.xml`

### Exception Hierarchy

```
CrawlerSystemException (unchecked)  # Setup/config errors
CrawlingAccessException (checked)   # Runtime crawl errors
  ├─ MaxLengthExceededException
  └─ ChildUrlsException

    @Mock
    SmbResourceLocator other;

    @Mock
    DfsReferralData referral;

    // Reflection-based API checks ensure the interface contract is as expected
    @Test
    @DisplayName("Type hierarchy and method signatures are correct")
    void typeAndSignatures() throws Exception {
        Class<?> clazz = SmbResourceLocatorInternal.class;

        // Assert it's an interface and extends the right superinterface

            assertEquals("Message", exception.getMessage());
            assertNull(exception.getCause());
        });
    }

    @Test
    @DisplayName("Should preserve exception hierarchy")
    void testExceptionHierarchy() {
        // When
        RuntimeCIFSException exception = new RuntimeCIFSException("Test");

        // Then
        assertTrue(exception instanceof RuntimeException);

            assertTrue(AllocInfo.class.isAssignableFrom(FileFsFullSizeInformation.class));
        }

        @Test
        @DisplayName("Should verify correct interface hierarchy")
        void testInterfaceHierarchy() {
            // Create instances
            SmbInfoAllocation smbInfo = new SmbInfoAllocation();
            FileFsSizeInformation sizeInfo = new FileFsSizeInformation();

    /** Array of supported file protocols for URL classification. */
    protected String[] fileProtocols = { "file:", "smb:", "smb1:", "ftp:", "storage:" };

    /** Queue to track the current XML element hierarchy during parsing. */
    protected LinkedList<String> tagQueue;

    /** List to store parsed label types for access control. */
    protected List<LabelType> labelList;

    /**
     * Helper method to set error code using reflection
     */
    private void setErrorCode(NtTransQuerySecurityDescResponse response, int errorCode) throws Exception {
        // Navigate through the inheritance hierarchy to find the errorCode field
        Class<?> currentClass = response.getClass();
        Field errorCodeField = null;

        while (currentClass != null && errorCodeField == null) {
            try {

import jcifs.smb.SmbAuthException;
import jcifs.smb.SmbException;
import jcifs.smb.SmbFile;
import jcifs.smb.SmbFileInputStream;

/**
 * This servlet may be used to "browse" the entire hierarchy of resources
 * on an SMB network like one might with Network Neighborhood or Windows
 * Explorer. The users credentials with be negotiated using NTLM SSP if
 * the client is Microsoft Internet Explorer.
 *

import jcifs.smb1.smb1.SmbSession;
import jcifs.smb1.util.Base64;
import jcifs.smb1.util.LogStream;
import jcifs.smb1.util.MimeMap;

/**
 * This servlet may be used to "browse" the entire hierarchy of resources
 * on an SMB network like one might with Network Neighborhood or Windows
 * Explorer. The users credentials with be negotiated using NTLM SSP if
 * the client is Microsoft Internet Explorer.
 */

/**

     *
     * @return The parent directory of this SMB resource or
     *         <code>smb://</code> if the resource refers to the root of the URL
     *         hierarchy which incidentally is also <code>smb://</code>.
     */
    public String getParent() {
        return this.fileLocator.getParent();
    }

    /**

     *
     * @return   The parent directory of this SMB resource or
     *           <code>smb1://</code> if the resource refers to the root of the URL
     *           hierarchy which incedentally is also <code>smb1://</code>.
     */

    public String getParent() {
        String str = url.getAuthority();

        if (str.length() > 0) {