this.it = checkNotNull(it);
    advance();
  }

  @Override
  public void close() throws IOException {
    if (in != null) {
      try {
        in.close();
      } finally {
        in = null;
      }
    }
  }

  /** Closes the current input stream and opens the next one, if any. */
  private void advance() throws IOException {
    close();

     * Creates artifact coordinates.
     *
     * @param request the request holding coordinates creation parameters
     * @return an {@code ArtifactCoordinates}, never {@code null}
     * @throws IllegalArgumentException if {@code request} is null or {@code request.session} is null or invalid
     */
    @Nonnull
    ArtifactCoordinates create(@Nonnull ArtifactCoordinatesFactoryRequest request);

    /**

        @DisplayName("Should encode input with null system name")
        void testEncodeInNullSystemName() throws NdrException {
            // Given: Connect2 message with null system name
            samr.SamrConnect2 message = new samr.SamrConnect2(null, 123, mockPolicyHandle);

            // When: Encoding input
            message.encode_in(mockNdrBuffer);

            // Then: Should encode null referent and access mask

        if (createdBy != null) {
            addFieldToSource(sourceMap, "createdBy", createdBy);
        }
        if (createdTime != null) {
            addFieldToSource(sourceMap, "createdTime", createdTime);
        }
        if (generator != null) {
            addFieldToSource(sourceMap, "generator", generator);
        }
        if (path != null) {
            addFieldToSource(sourceMap, "path", path);

import okio.ByteString.Companion.encodeUtf8
import okio.IOException
import okio.Source
import okio.buffer

class ResponseBodyTest {
  @Test
  fun sourceEmpty() {
    val mediaType = if (null == null) null else "any/thing; charset=${null}".toMediaType()
    val body = "".decodeHex().toResponseBody(mediaType)
    val source = body.source()
    assertThat(source.exhausted()).isTrue()
    assertThat(source.readUtf8()).isEqualTo("")
  }

        SpnegoException ex = new SpnegoException();

        // Then
        assertNotNull(ex, "Exception should be created");
        assertNull(ex.getMessage(), "Default message should be null");
        assertNull(ex.getCause(), "Default cause should be null");
        assertTrue(ex instanceof CIFSException, "Should be a CIFSException");
        assertTrue(ex instanceof IOException, "Should be an IOException");
    }

    @Test

     * @return the converted value or null if not found or conversion fails
     */
    @SuppressWarnings("unchecked")
    public static <T> T getValue(final Map<String, Object> doc, final String key, final Class<T> clazz) {
        if (doc == null || key == null) {
            return null;
        }

        final Object value = doc.get(key);
        if (value == null) {
            return null;
        }

      monitor.leave();
    }
  }

  /**
   * Returns the comparator used to order the elements in this queue, or {@code null} if this queue
   * uses the {@linkplain Comparable natural ordering} of its elements.
   *
   * @return the comparator used to order the elements in this queue, or {@code null} if this queue
   *     uses the natural ordering of its elements
   */
  @CanIgnoreReturnValue // pushed down from class to method

            long id = 0;
            String line = null;
            while ((line = reader.readLine()) != null) {
                if (line.length() == 0 || line.charAt(0) == '#') {
                    if (updater != null) {
                        updater.write(line);
                    }
                    continue; // ignore empty lines and comments

            if (root_directory != null) {
                _dst = _dst.deferred;
                root_directory.encode(_dst);

            }
            if (object_name != null) {
                _dst = _dst.deferred;
                object_name.encode(_dst);

            }
            if (security_quality_of_service != null) {
                _dst = _dst.deferred;