PluginDescriptor pluginDescriptor = null;

        File pluginFile = pluginArtifact.getFile();

        try {
            if (pluginFile.isFile()) {
                try (JarFile pluginJar = new JarFile(pluginFile, false)) {
                    ZipEntry pluginDescriptorEntry = pluginJar.getEntry(getPluginDescriptorLocation());

                responseData.setHttpStatusCode(Constants.NOT_FOUND_STATUS_CODE);
                responseData.setCharSet(charset);
                responseData.setContentLength(0);
            } else if (file.isFile()) {
                if (logger.isDebugEnabled()) {
                    logger.debug("Checking SmbFile Size: {}", filePath);
                }
                responseData.setContentLength(file.length());

        cos.write(new byte[] { 0, 1, 2, 3, 4 });
        assertFalse(cos.done);
        assertTrue(cos.isInMemory());
        cos.close();
        assertFalse(cos.done);
    }

    @Test
    public void inFile() throws IOException {
        ContentOutputStream cos = new ContentOutputStream(10, Curl.tmpDir);
        cos.write(new byte[] { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0 });
        assertFalse(cos.done);

  options.compilerArgs.addAll(
    listOf(
      "--patch-module",
      "$moduleName=${compileKotlinTask.destinationDirectory.get().asFile}"
    )
  )

  // Use the classpath of the compileKotlinJvm task.
  // Also, ensure that the module path is used instead of the classpath.
  classpath = compileKotlinTask.libraries

            final int threadId = i;
            updateThreads[i] = new Thread(() -> {
                for (int j = 0; j < 20; j++) {
                    String fileName = "thread" + threadId + "_file" + j + ".txt";
                    entry.updateChild(fileName, j * 100L, System.currentTimeMillis(), false, 0x20, System.currentTimeMillis() - 10000,
                            System.currentTimeMillis() - 5000);
                }

                throw new ArtifactNotFoundException(
                        "System artifact: " + artifact + " not found in path: " + systemFile, artifact);
            }

            if (!systemFile.isFile()) {
                throw new ArtifactNotFoundException(
                        "System artifact: " + artifact + " is not a file: " + systemFile, artifact);
            }

            artifact.setResolved(true);

Transform documents to include Fess required fields. Example transformation script:

```python
import json

with open('documents.json', 'r') as infile, \
     open('fess-documents.json', 'w') as outfile:
    for line in infile:
        doc = json.loads(line)

        # Transform to Fess format
        fess_doc = {
            "url": doc.get("url", ""),
            "title": doc.get("title", ""),

        return artifacts.map(RepositoryUtils::toArtifact);
    }

    private boolean isRegularFile(Artifact artifact) {
        return artifact.getFile() != null && artifact.getFile().isFile();
    }

    private void installIntoProjectLocalRepository(Artifact artifact) {
        String extension = artifact.getExtension();
        String classifier = artifact.getClassifier();

                responseData.setHttpStatusCode(Constants.NOT_FOUND_STATUS_CODE);
                responseData.setCharSet(charset);
                responseData.setContentLength(0);
            } else if (file.isFile()) {
                if (logger.isDebugEnabled()) {
                    logger.debug("Checking SmbFile Size: {}", filePath);
                }
                responseData.setContentLength(file.length());

     *
     * @return <code>true</code> if this <code>SmbResource</code> is not a directory
     * @throws CIFSException if an error occurs accessing the resource
     */
    boolean isFile() throws CIFSException;

    /**
     * Tests to see if the file this <code>SmbResource</code> represents is a directory.
     *
     * @return <code>true</code> if this <code>SmbResource</code> is a directory