override fun contentLength(): Long {
    return delegate.contentLength()
  }

  override fun source(): BufferedSource {
    return delegate.source()
  }

  override fun toString(): String {
    return javaClass.simpleName + "(" + delegate.toString() + ")"
  }

  init {
    requireNotNull(delegate) { "delegate == null" }
    this.delegate = delegate
  }

            throw rcae;
        }
        if (content == null) {
            content = StringUtil.EMPTY;
        }
        final String contentMeta = contentMetaBuf.toString().trim();

        final CrawlingInfoHelper crawlingInfoHelper = ComponentUtil.getCrawlingInfoHelper();
        final String sessionId = crawlingInfoHelper.getCanonicalSessionId(responseData.getSessionId());

  }

  /**
   * A sensible definition of {@link #toString} as {@code entrySet().toString()} . If you override
   * {@link #entrySet}, you may wish to override {@link #toString} to forward to this
   * implementation.
   *
   * @since 7.0
   */
  @Override
  protected String standardToString() {
    return entrySet().toString();
  }

          new Runnable() {
            @Override
            public void run() {
              task.run();
            }

            @Override
            public String toString() {
              return task.toString();
            }
          };
      queue.add(submittedTask);
      workerRunningState = QUEUING;
    }

    try {
      executor.execute(worker);
    } catch (Throwable t) {

          new Runnable() {
            @Override
            public void run() {
              task.run();
            }

            @Override
            public String toString() {
              return task.toString();
            }
          };
      queue.add(submittedTask);
      workerRunningState = QUEUING;
    }

    try {
      executor.execute(worker);
    } catch (Throwable t) {

                return parentUrl;
            }

            // append childPathAdjustment and childDirectory to parent url
            return appendPath(parentUrl, childDirectory.toString(), childPathAdjustment.toString());
        }

        private String appendPath(String parentUrl, String childPath, String pathAdjustment) {
            StringBuilder url = new StringBuilder(parentUrl.length()

  }

  public void testToString() {
    assertEquals("[]", FluentIterable.from(emptyList()).toString());
    assertEquals("[]", FluentIterable.<String>of().toString());

    assertEquals(
        "[yam, bam, jam, ham]", FluentIterable.from(asList("yam", "bam", "jam", "ham")).toString());
  }

  public void testCycle() {

            Map<String, String> extra = new HashMap<>();
            extra.put("session.topDirectory", topDirectory.toString());
            if (rootDirectory != null) {
                extra.put("session.rootDirectory", rootDirectory.toString());
            }
            return extra;
        }
    }

    @Override

                return tempBuf.toString();
            }).collect(Collectors.joining(","));
            buf.append(hotThreads).append(',');
        } catch (final Exception e) {
            appendException(buf, e).append(',');
        }

        appendTimestamp(buf);
        buf.append('}');

        if (logger.isInfoEnabled()) {
            logger.info(buf.toString());
        }
    }

    StringBuilder sb = new StringBuilder(sevenBitAsciiMax - spaceInAscii);
    for (int ch = spaceInAscii; ch < sevenBitAsciiMax; ch++) {
      sb.append((char) ch);
    }
    ASCII_CHARACTERS = sb.toString();
  }

  private static final String ALL_DIGITS;

  static {
    StringBuilder sb = new StringBuilder();
    String zeros =
        "0\u0660\u06f0\u07c0\u0966\u09e6\u0a66\u0ae6\u0b66\u0be6\u0c66"