Then you go to the counter 🔀, to the initial task that is now finished ⏯, pick the burgers, say thanks and take them to the table. That finishes that step / task of interaction with the counter ⏹. That in turn, creates a new task, of "eating burgers" 🔀 ⏯, but the previous one of "getting burgers" is finished ⏹.

### Parallel Burgers { #parallel-burgers }

Now let's imagine these aren't "Concurrent Burgers", but "Parallel Burgers".

   *
   * <p>This method waits 120 seconds before continuing with JVM termination, even if the executor
   * has not finished its work.
   *
   * <p>This is mainly for fixed thread pools. See {@link Executors#newFixedThreadPool(int)}.
   *
   * @param executor the executor to modify to make sure it exits when the application is finished
   * @return an unmodifiable version of the input which will not hang the JVM
   */
  @J2ktIncompatible

  private val readyAsyncCalls = ArrayDeque<AsyncCall>()

  /** Running asynchronous calls. Includes canceled calls that haven't finished yet. */
  private val runningAsyncCalls = ArrayDeque<AsyncCall>()

  /** Running synchronous calls. Includes canceled calls that haven't finished yet. */
  private val runningSyncCalls = ArrayDeque<RealCall>()

  constructor(executorService: ExecutorService?) : this() {

      byteCount: Long,
    ) {
      assertLockNotHeld()

      var remainingByteCount = byteCount

      while (remainingByteCount > 0L) {
        val finished: Boolean
        val flowControlError: Boolean
        withLock {
          finished = this.finished
          flowControlError = remainingByteCount + readBuffer.size > maxByteCount
        }

            deflater.setInput(data, offset, length);
            deflater.finish();

            ByteArrayOutputStream baos = new ByteArrayOutputStream(length);
            byte[] buffer = new byte[1024];

            while (!deflater.finished()) {
                int compressedSize = deflater.deflate(buffer);
                baos.write(buffer, 0, compressedSize);
            }

                    // Process finished normally.
                    final int exitValue = p.exitValue();
                    if (exitValue != 0) {
                        logger.warn("{} failed: exitCode={}, command={}", getName(), exitValue, commandList);
                    }

                    if (logger.isDebugEnabled()) {
                        logger.debug("{} finished: exitCode={}", getName(), exitValue);

        infoLine('-');

        Instant finish = MonotonicClock.now();

        Duration time = Duration.between(session.getRequest().getStartInstant(), finish);

        String wallClock = session.getRequest().getDegreeOfConcurrency() > 1 ? " (Wall Clock)" : "";

        logger.info("Total time:  {}{}", formatDuration(time), wallClock);

        infoLine('-');

        long finish = System.currentTimeMillis();

        long time = finish - session.getRequest().getStartTime().getTime();

        String wallClock = session.getRequest().getDegreeOfConcurrency() > 1 ? " (Wall Clock)" : "";

        logger.info("Total time:  {}{}", formatDuration(time), wallClock);

        logger.info("Finished at: {}", formatTimestamp(finish));
    }

    @Override

      "FINE: Q10000 starting              : task",
      "FINE: Q10000 finished run in   0 µs: task",
      "FINE: Q10000 run again after  50 µs: task",
      "FINE: Q10000 starting              : task",
      "FINE: Q10000 finished run in   0 µs: task",
      "FINE: Q10000 run again after 150 µs: task",
      "FINE: Q10000 starting              : task",
      "FINE: Q10000 finished run in   0 µs: task",
    )
  }

    assert state["context_b"] == "finished b with a: started a"
    assert state["context_a"] == "finished a"


def test_context_b_raise():
    with pytest.raises(OtherDependencyError):
        client.get("/context_b_raise")
    assert state["context_b"] == "finished b with a: started a"
    assert state["context_a"] == "finished a"


def test_background_tasks():