}

        @Test
        void testListFiles() throws SmbException {
            // Arrange
            doReturn(new SmbFile[0]).when(smbFile).listFiles();

            // Act
            SmbFile[] files = smbFile.listFiles();

            // Assert
            assertNotNull(files);
            assertEquals(0, files.length);
        }

        @Test

     * of the resource URL
     */

    public SmbFile[] listFiles(final String wildcard) throws SmbException {
        return listFiles(wildcard, ATTR_DIRECTORY | ATTR_HIDDEN | ATTR_SYSTEM, null, null);
    }

    /**
     * List the contents of this SMB resource. The list returned will be
     * identical to the list returned by the parameterless <code>listFiles()</code>

        }

        @Test
        @DisplayName("listFiles with null root throws NullPointerException")
        void listFiles_withNullRoot_throwsNpe() {
            // Intent: null root is invalid input
            assertThrows(NullPointerException.class, () -> SmbEnumerationUtil.listFiles(null, "*", 0, null, null));
        }

        @Test

        // Utility class - prevent instantiation
    }

    private static final Logger log = LoggerFactory.getLogger(SmbFileDirectoryLeasingExtension.class);

    /**
     * Enhanced listFiles method that uses directory leasing for caching when available
     *
     * @param smbFile the SmbFile directory to list
     * @return array of SmbFile objects representing the directory contents

    // First listing should hit the server
    long start1 = System.currentTimeMillis();
    SmbFile[] files1 = dir.listFiles();
    long time1 = System.currentTimeMillis() - start1;
    
    // Second listing should use cache (much faster)
    long start2 = System.currentTimeMillis();
    SmbFile[] files2 = dir.listFiles();
    long time2 = System.currentTimeMillis() - start2;
    
    assertEquals(files1.length, files2.length);

        final List<File> fileList = new ArrayList<>(
                FileUtils.listFiles(new File(baseDir, "images"), fessConfig.getSupportedUploadedMediaExtentionsAsArray(), true));
        fileList.addAll(FileUtils.listFiles(new File(baseDir, "css"), fessConfig.getSupportedUploadedCssExtentionsAsArray(), true));
        fileList.addAll(FileUtils.listFiles(new File(baseDir, "js"), fessConfig.getSupportedUploadedJsExtentionsAsArray(), true));

            return new File[0];
        }
        final File libDir = new File(libPath);
        if (!libDir.exists()) {
            return new File[0];
        }
        return libDir.listFiles((file, name) -> name.startsWith(namePrefix));
    }

    /**
     * Gets plugin JAR files from the plugin directory that start with the specified prefix.
     *

        if (tempDir != null && tempDir.exists()) {
            deleteDirectory(tempDir);
        }
        super.tearDown();
    }

    private void deleteDirectory(File dir) {
        File[] files = dir.listFiles();
        if (files != null) {
            for (File file : files) {
                if (file.isDirectory()) {
                    deleteDirectory(file);
                } else {
                    file.delete();

                    if (r < 0.333) {
                        f.exists();
                        //                      System.out.print('e');
                    } else if (r < 0.667) {
                        d.listFiles();
                        //                      System.out.print('l');
                    } else if (r < 1.0) {
                        final InputStream in = f.getInputStream();

        // TODO: send bad request error
        throw AssertionError()
      }
      val file = File(baseDirectory.toString() + path)
      if (file.isDirectory) {
        serveDirectory(stream, file.listFiles()!!)
      } else if (file.exists()) {
        serveFile(stream, file)
      } else {
        send404(stream, path)
      }
    } catch (e: IOException) {