});
    }

    public void test_ofNull() {
        assertEquals(0, (int) StreamUtil.stream().get(s -> s.toArray().length));
        Object[] o = {};
        assertEquals(0, (int) StreamUtil.stream(o).get(s -> s.toArray().length));
        Map<Object, Object> map = new HashMap<Object, Object>();
        assertEquals(0, (int) StreamUtil.stream(map).get(s -> s.toArray().length));
    }

    public void test_ofMap() {

    /**
     * Creates a {@link Reader} to read from a file with the specified encoding.
     *
     * @param is
     *            the input stream (must not be {@literal null})
     * @param encoding
     *            the encoding of the input stream (must not be {@literal null} or empty)
     * @return a {@link Reader} to read from the file
     */

            final PutObjectArgs args = PutObjectArgs.builder()
                    .bucket(fessConfig.getStorageBucket())
                    .object(objectName)
                    .stream(in, uploadFile.getFileSize(), -1)
                    .contentType("application/octet-stream")
                    .build();
            minioClient.putObject(args);
        } catch (final Exception e) {

   * unspecified if this method is called more than once on the same instance.
   */
  public HashCode hash() {
    return hasher.hash();
  }

  // Overriding close() because FilterOutputStream's close() method pre-JDK8 has bad behavior:
  // it silently ignores any exception thrown by flush(). Instead, just close the delegate stream.
  // It should flush itself if necessary.

        return parseContext;
    }

    /**
     * Returns an input stream from a deferred file output stream.
     *
     * @param dfos A deferred file output stream.
     * @return An input stream.
     * @throws IOException if an I/O error occurs.
     */
    protected InputStream getContentStream(final DeferredFileOutputStream dfos) throws IOException {

import static org.junit.jupiter.api.Assertions.assertTrue;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.verifyNoInteractions;

import java.lang.reflect.Modifier;
import java.util.stream.Stream;

import org.junit.jupiter.api.DisplayName;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.extension.ExtendWith;
import org.junit.jupiter.params.ParameterizedTest;

        stream(crawlingConfig.getPermissions()).of(stream -> stream.forEach(p -> roleTypeList.add(p)));
        putResultDataBody(dataMap, fessConfig.getIndexFieldRole(), roleTypeList);
        // virtualHosts
        putResultDataBody(dataMap, fessConfig.getIndexFieldVirtualHost(),
                stream(crawlingConfig.getVirtualHosts()).get(stream -> stream.filter(StringUtil::isNotBlank).collect(Collectors.toList())));

     * file output stream.
     *
     * @throws IOException
     *             if a network error occurs
     */

    @Override
    public void write(final byte[] b) throws IOException {
        write(b, 0, b.length);
    }

    /**
     * Tests whether the output stream is currently open.
     *
     * @return whether the stream is open
     */
    public boolean isOpen() {

        return loader.getResource(p);
    }

    /**
     * Returns the resource as a stream from the context class loader.
     *
     * @param path
     *            The resource path. Must not be {@literal null} or empty string.
     * @return The input stream
     * @see #getResourceAsStream(String, String)
     */
    public static InputStream getResourceAsStream(final String path) {

    }

    /**
     * Traverses resources contained in a ZIP file input stream.
     * <p>
     * Of the resources in the input stream, only those with paths starting with the specified prefix are traversed.
     * The handler receives the entry name with the prefix removed. For example, if the prefix is <code>/aaa/bbb/</code>
     * and the input stream contains a resource <code>/aaa/bbb/ccc/ddd/eee.txt</code>, the handler receives