0 -> UTF_8
    1 -> UTF_16BE
    2 -> UTF_32LE
    3 -> UTF_16LE
    4 -> UTF_32BE
    -1 -> default
    else -> throw AssertionError()
  }

internal fun checkDuration(
  name: String,
  duration: Long,
  unit: TimeUnit,
): Int {
  check(duration >= 0L) { "$name < 0" }
  val millis = unit.toMillis(duration)

    requestBodySinks.add(sink)
  }

  override fun isDuplex(): Boolean = true

  @Throws(InterruptedException::class)
  fun takeSink(): BufferedSink = requestBodySinks.poll(5, SECONDS) ?: throw AssertionError("no sink to take")

  fun assertNoMoreSinks() {
    assertTrue(requestBodySinks.isEmpty())
  }

            case HALF_UP:
              return (x >= 0) ? roundCeilingAsDouble : roundFloorAsDouble;
            default:
              throw new AssertionError("impossible");
          }
        }
    }
    throw new AssertionError("impossible");
  }

  /**
   * Returns the closest representable {@code long} to the absolute value of {@code x}.
   *

    val thread =
      object : Thread() {
        override fun run(): Unit = throw RuntimeException("boom!")
      }
    thread.start()
    thread.join()

    assertFailsWith<AssertionError> {
      testRule.afterEach(extensionContext)
    }.also { expected ->
      assertThat(expected).hasMessage("uncaught exception thrown during test")
      assertThat(expected.cause!!).hasMessage("boom!")
    }
  }

        }
      }
      val nowMillis = TimeUnit.NANOSECONDS.toMillis(System.nanoTime())
      if (nowMillis >= timeoutMillis) break
      (this as Object).wait(timeoutMillis - nowMillis)
    }

    throw AssertionError("Timed out waiting for response to $url")
  }

  companion object {
    val TIMEOUT_MILLIS = TimeUnit.SECONDS.toMillis(10)
  }

    constructor.setAccessible(true); // accessibility check is too slow
    try {
      return constructor.newInstance();
    } catch (InstantiationException | IllegalAccessException impossible) {
      throw new AssertionError(impossible);
    } catch (InvocationTargetException e) {
      logger.log(Level.WARNING, "Exception while invoking default constructor.", e.getCause());
      return arbitraryConstantInstanceOrNull(type);
    }
  }

    }

    private static Method subscriberMethod() {
      try {
        return DummySubscriber.class.getMethod("handle", Object.class);
      } catch (NoSuchMethodException e) {
        throw new AssertionError(e);
      }
    }
  }

      currentThread().interrupt();
      throw newWithCause(exceptionClass, e);
    } catch (ExecutionException e) {
      wrapAndThrowExceptionOrError(e.getCause(), exceptionClass);
      throw new AssertionError();
    }
  }

  /** Implementation of {@link Futures#getChecked(Future, Class, long, TimeUnit)}. */
  @CanIgnoreReturnValue
  @ParametricNullness

        @Override
        public Integer next(Integer value) {
          throw new AssertionError();
        }

        @Override
        public Integer previous(Integer value) {
          throw new AssertionError();
        }

        @Override
        public long distance(Integer start, Integer end) {
          throw new AssertionError();
        }
      };

  public void testCreate_noMin() {

      currentThread().interrupt();
      throw newWithCause(exceptionClass, e);
    } catch (ExecutionException e) {
      wrapAndThrowExceptionOrError(e.getCause(), exceptionClass);
      throw new AssertionError();
    }
  }

  /** Implementation of {@link Futures#getChecked(Future, Class, long, TimeUnit)}. */
  @CanIgnoreReturnValue
  @ParametricNullness