Ancak asenkron kodla çalışmayı çok daha kolay hale getirir.

Aynı sözdizimi (hemen hemen aynı) son zamanlarda JavaScript'in modern sürümlerine de dahil edildi (Tarayıcı ve NodeJS'de).

Ancak bundan önce, asenkron kodu işlemek oldukça karmaşık ve zordu.

_2023-10-16_

 *  Fix: Don't hang taking headers for HTTP 103 responses.

 *  Fix: Recover gracefully when a cache entry's certificate is corrupted.

 *  Fix: Fail permanently when there's a failure loading the bundled public suffix database.
    This is the dataset that powers `HttpUrl.topPrivateDomain()`.

 *  Fix: Immediately update the connection's flow control window instead of waiting for the
    receiving stream to process it.

        withLock {
          finished = this.finished
          flowControlError = remainingByteCount + readBuffer.size > maxByteCount
        }

        // If the peer sends more data than we can handle, discard it and close the connection.
        if (flowControlError) {
          source.skip(remainingByteCount)
          closeLater(ErrorCode.FLOW_CONTROL_ERROR)
          return
        }

      }
    }
  }

  /** Returns the {@code Class} object of arrays with {@code componentType}. */
  static Class<?> getArrayClass(Class<?> componentType) {
    // TODO(user): This is not the most efficient way to handle generic
    // arrays, but is there another way to extract the array class in a
    // non-hacky way (i.e. using String value class names- "[L...")?
    return Array.newInstance(componentType, 0).getClass();
  }

                    // Mock implementation
                }
            };
        } catch (Exception e) {
            // If ActionRuntime constructor fails, return null and handle in test methods
            return null;
        }
    }

        List<String> cmdList = new ArrayList<>();

        try {
            execJob.testAddFessCustomSystemProperties(cmdList, "[invalid(regex");
            fail("Should handle invalid regex");
        } catch (Exception e) {
            // Expected to throw pattern syntax exception
            assertTrue(e instanceof java.util.regex.PatternSyntaxException);
        }
    }

		HandlerFunc(s3APIMiddleware(api.ListBucketsHandler))

	// S3 browser with signature v4 adds '//' for ListBuckets request, so rather
	// than failing with UnknownAPIRequest we simply handle it for now.
	apiRouter.Methods(http.MethodGet).Path(SlashSeparator + SlashSeparator).
		HandlerFunc(s3APIMiddleware(api.ListBucketsHandler))

	// If none of the routes match add default error handler routes

		r.Body = io.NopCloser(bytes.NewReader(payload))
		region, s3Err = parseLocationConstraint(r)
		if s3Err != ErrNone {
			return s3Err
		}

		// Populate payload again to handle it in HTTP handler.
		r.Body = io.NopCloser(bytes.NewReader(payload))
	}

	logger.GetReqInfo(ctx).Region = region

	return s3Err
}

  /* use AbstractService for state management */
  private final AbstractService delegate = new ServiceDelegate();

  @WeakOuter
  private final class ServiceDelegate extends AbstractService {

    // A handle to the running task so that we can stop it when a shutdown has been requested.
    // These two fields are volatile because their values will be accessed from multiple threads.
    private volatile @Nullable Cancellable runningTask;

		if opts.PartNumber > 0 {
			writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrInvalidRangePartNumber), r.URL)
			return
		}

		rs, rangeErr = parseRequestRangeSpec(rangeHeader)
		// Handle only errInvalidRange. Ignore other
		// parse error and treat it as regular Get
		// request like Amazon S3.
		if errors.Is(rangeErr, errInvalidRange) {