public void close() throws IOException {
      closed = true;
      if (throwOnClose != null) {
        throwIfInstanceOf(throwOnClose, IOException.class);
        throwIfUnchecked(throwOnClose);
        throw new AssertionError(throwOnClose);
      }
    }
  }

    @Override
    protected void startUp() {
      startUpCalled = true;
      throw new UnsupportedOperationException("kaboom!");
    }

    @Override
    protected void run() {
      throw new AssertionError("run() should not be called");
    }

    @Override
    protected Executor executor() {
      return exceptionCatchingExecutor;
    }
  }

  public void testServiceThrowOnRun() throws Exception {

    for (ClassPath.ClassInfo classInfo : classes) {
      if (classInfo.getName().equals(cls.getName())) {
        return classInfo;
      }
    }
    throw new AssertionError("failed to find " + cls);
  }

  private static ResourceInfo resourceInfo(Class<?> cls) {
    String resource = cls.getName().replace('.', '/') + ".class";
    ClassLoader loader = cls.getClassLoader();

        Resource customResource = resources.stream()
                .filter(r -> r.getDirectory().endsWith("custom"))
                .findFirst()
                .orElseThrow(() -> new AssertionError("Custom resource not found"));

        // Verify targetPath was preserved through conversion chain
        assertEquals(

      case UNORDERED:
        orderedNodeConnections = null;
        break;
      case STABLE:
        orderedNodeConnections = new ArrayList<>();
        break;
      default:
        throw new AssertionError(incidentEdgeOrder.type());
    }

    return new DirectedGraphConnections<>(
        /* adjacentNodeValues= */ new HashMap<N, Object>(initialCapacity, INNER_LOAD_FACTOR),
        orderedNodeConnections,

        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);
    }
  }

    switch (boundType) {
      case OPEN:
        return lessThan(endpoint);
      case CLOSED:
        return atMost(endpoint);
    }
    throw new AssertionError();
  }

  /**
   * Returns a range that contains all values strictly greater than {@code endpoint}.
   *
   * @since 14.0
   */

   * appear in this multimap.
   */
  @Override
  public ImmutableSet<K> keySet() {
    return map.keySet();
  }

  @Override
  Set<K> createKeySet() {
    throw new AssertionError("unreachable");
  }

  /**
   * Returns an immutable map that associates each key with its corresponding values in the
   * multimap. Keys and values appear in the same order as in this multimap.
   */

    // 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 =

   */
  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;
  }