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}.
   *

    if (cancel) {
      cancel = false
      eventSource.cancel()
    }
  }

  private fun nextEvent(): Any =
    events.poll(10, TimeUnit.SECONDS)
      ?: throw AssertionError("Timed out waiting for event.")

  fun assertExhausted() {
    assertThat(events).isEmpty()
  }

  fun assertEvent(
    id: String?,
    type: String?,
    data: String,
  ) {

            source.skip(lineEnd)
            source.select(options)
          } else {
            return false // No more newlines.
          }
        }

        else -> throw AssertionError()
      }
    }
  }

  @Throws(IOException::class)
  private fun completeEvent(
    id: String?,
    type: String?,
    data: Buffer,
  ) {
    if (data.size != 0L) {

    } catch (AssertionError expected) {
      return;
    }
    fail();
  }

  public void testAssertSubtypeTokenBeforeSupertypeToken_duplicate() {
    try {
      assertSubtypeTokenBeforeSupertypeToken(
          ImmutableList.of(TypeToken.of(String.class), TypeToken.of(String.class)));
    } catch (AssertionError expected) {
      return;
    }
    fail();
  }

    } catch (AssertionError expected) {
      return;
    }
    fail();
  }

  public void testAssertSubtypeTokenBeforeSupertypeToken_duplicate() {
    try {
      assertSubtypeTokenBeforeSupertypeToken(
          ImmutableList.of(TypeToken.of(String.class), TypeToken.of(String.class)));
    } catch (AssertionError expected) {
      return;
    }
    fail();
  }

            // Verify that it's a system-related exception, not a method signature issue
            assertTrue("Exception should be system-related", t instanceof RuntimeException || t instanceof AssertionError
                    || (t.getCause() != null && t.getCause() instanceof RuntimeException));
        }
    }

    public void test_private_methods_exist() throws Exception {

      for (ClassOwnership behavior : ClassOwnership.values()) {
        if (behavior.getOwnerType(LocalClass.class) == parameterizedType.getOwnerType()) {
          return behavior;
        }
      }
      throw new AssertionError();
    }
  }

  /**
   * Returns a new {@link TypeVariable} that belongs to {@code declaration} with {@code name} and
   * {@code bounds}.
   */

          return captureAsTypeVariable(wildcardType.getUpperBounds());
        } else {
          // TODO(benyu): handle ? super T somehow.
          return type;
        }
      }
      throw new AssertionError("must have been one of the known types");
    }

    TypeVariable<?> captureAsTypeVariable(Type[] upperBounds) {
      String name =

      for (ClassOwnership behavior : ClassOwnership.values()) {
        if (behavior.getOwnerType(LocalClass.class) == parameterizedType.getOwnerType()) {
          return behavior;
        }
      }
      throw new AssertionError();
    }
  }

  /**
   * Returns a new {@link TypeVariable} that belongs to {@code declaration} with {@code name} and
   * {@code bounds}.
   */

          return captureAsTypeVariable(wildcardType.getUpperBounds());
        } else {
          // TODO(benyu): handle ? super T somehow.
          return type;
        }
      }
      throw new AssertionError("must have been one of the known types");
    }

    TypeVariable<?> captureAsTypeVariable(Type[] upperBounds) {
      String name =