nextInBucketKToV[prevInBucket] = nextInBucketKToV[entry];
        nextInBucketKToV[entry] = ABSENT;
        return;
      }
      prevInBucket = entryInBucket;
    }
    throw new AssertionError("Expected to find entry with key " + keys[entry]);
  }

  /**
   * Updates the V-to-K hash table to remove the entry at the specified index, which is assumed to

        }
      }
    }

    if (thrown == null && throwable != null) {
      throwIfInstanceOf(throwable, IOException.class);
      throwIfUnchecked(throwable);
      throw new AssertionError(throwable); // not possible
    }
  }

  /** Suppression strategy interface. */
  @VisibleForTesting
  interface Suppressor {
    /**

    CacheLoader<Object, Object> loader =
        new CacheLoader<Object, Object>() {
          @Override
          public Object load(Object key) throws Exception {
            throw new AssertionError();
          }

          @Override
          public Map<Object, Object> loadAll(Iterable<?> keys) throws Exception {
            Map<Object, Object> result = new HashMap<>();

        case OPEN:
          return aggr.nodeAggregate(node) + aggr.treeAggregate(node.left);
        case CLOSED:
          return aggr.treeAggregate(node.left);
      }
      throw new AssertionError();
    } else {
      return aggr.treeAggregate(node.left)
          + aggr.nodeAggregate(node)
          + aggregateBelowRange(aggr, node.right);
    }
  }

   */
  private static char[] growBuffer(char[] dest, int index, int size) {
    if (size < 0) { // overflow - should be OutOfMemoryError but GWT/j2cl don't support it
      throw new AssertionError("Cannot increase internal buffer any further");
    }
    char[] copy = new char[size];
    if (index > 0) {
      System.arraycopy(dest, 0, copy, 0, index);
    }
    return copy;
  }

    // interpreted in little-endian order.
    int verification = Integer.reverseBytes(Ints.fromByteArray(result));

    if (expected != verification) {
      throw new AssertionError(
          "Expected: "
              + Integer.toHexString(expected)
              + " got: "
              + Integer.toHexString(verification));
    }
  }

  static final Funnel<Object> BAD_FUNNEL =

        case OPEN:
          return aggr.nodeAggregate(node) + aggr.treeAggregate(node.left);
        case CLOSED:
          return aggr.treeAggregate(node.left);
      }
      throw new AssertionError();
    } else {
      return aggr.treeAggregate(node.left)
          + aggr.nodeAggregate(node)
          + aggregateBelowRange(aggr, node.right);
    }
  }

        return i;
      }
    }
    throw new AssertionError(
        "Expected element " + clazz + "." + method + " not found in stack trace", e);
  }

  private ExecutionException getExpectingExecutionException(AbstractFuture<String> future)
      throws InterruptedException {
    try {
      String got = future.get();
      throw new AssertionError("Expected exception but got " + got);

        case NEW:
        case RUNNABLE:
        case WAITING:
          Thread.yield();
          break;
        case TIMED_WAITING:
          return;
        case TERMINATED:
          throw new AssertionError();
      }
    }
  }

  public void testDirectExecutorService_shutdownNow() {
    ExecutorService executor = newDirectExecutorService();
    assertEquals(ImmutableList.of(), executor.shutdownNow());

      for (RoundingMode mode : modes) {
        Double previous = expectedValues.put(mode, expectedValue);
        if (previous != null) {
          throw new AssertionError();
        }
      }
      return this;
    }

    @CanIgnoreReturnValue
    RoundToDoubleTester roundUnnecessaryShouldThrow() {
      unnecessaryShouldThrow = true;
      return this;
    }