TimeoutException e =
        assertThrows(
            TimeoutException.class, () -> service.startAsync().awaitRunning(1, MILLISECONDS));
    assertThat(e).hasMessageThat().contains(Service.State.STARTING.toString());
  }

  private static final class TimeoutOnStartUp extends AbstractExecutionThreadService {
    @Override
    protected Executor executor() {
      return new Executor() {

               * !GENERATE_CANCELLATION_CAUSES.
               *
               * TODO(cpovirk): Maybe it would be cleaner to define a CancellationSupplier interface
               * with two implementations, one that contains causeless Cancellation instances and
               * the other of which creates new Cancellation instances each time it's called? Yet

  }

  public void testContains() {
    assertThat(Chars.contains(EMPTY, (char) 1)).isFalse();
    assertThat(Chars.contains(ARRAY1, (char) 2)).isFalse();
    assertThat(Chars.contains(ARRAY234, (char) 1)).isFalse();
    assertThat(Chars.contains(new char[] {(char) -1}, (char) -1)).isTrue();
    assertThat(Chars.contains(ARRAY234, (char) 2)).isTrue();
    assertThat(Chars.contains(ARRAY234, (char) 3)).isTrue();

    assume().that(graph.allowsSelfLoops()).isFalse();

    IllegalArgumentException e =
        assertThrows(IllegalArgumentException.class, () -> putEdge(N1, N1));
    assertThat(e).hasMessageThat().contains(ERROR_SELF_LOOP);
  }

  @Test
  public void putEdge_allowsSelfLoops() {
    assume().that(graphIsMutable()).isTrue();
    assume().that(graph.allowsSelfLoops()).isTrue();

    tearDownStack.runTearDown();
  }

  @Override
  public void runBare() throws Throwable {
    try {
      super.runBare();
    } catch (AssertionError e) {
      if (e.getMessage() != null && e.getMessage().contains("Dude, where's my interrupt?")) {
        // Rerun test to work around Marshamallow class-loading issue b/456222735.
        super.runBare();
        return;
      }
      throw e;
    }
  }

                    Artifact artifact = new DefaultArtifact(expression.substring(2, expression.length() - 1));
                    VersionRange versionRange =
                            artifact.getVersion().contains(",") ? parseVersionRange(artifact.getVersion()) : null;
                    Predicate<Artifact> predicate = a -> {
                        if (artifact.getGroupId().equals(a.getGroupId())

     */
    public boolean isEmpty() {
        return size == 0;
    }

    /**
     * Checks if an element is contained in the list.
     *
     * @param element the element
     * @return true if the element is contained in the list, false otherwise
     */
    public boolean contains(final E element) {
        return indexOf(element) != -1;
    }

    /**
     * Removes an element from the list.

        } catch (final FileUploadByteCountLimitException e) { // special handling
            handleSizeLimitExceededException(request, e);
        } catch (final FileUploadException e) { // contains fileCount exceeded
            handleFileUploadException(e);
        }
    }

    protected void prepareElementsHash() { // traditional name

But there could be cases where you want to be able to set parameters on the dependency, without having to declare many different functions or classes.

Let's imagine that we want to have a dependency that checks if the query parameter `q` contains some fixed content.

But we want to be able to parameterize that fixed content.

## A "callable" instance { #a-callable-instance }

In Python there's a way to make an instance of a class a "callable".

        final Object value = map.get(key);
        if (value instanceof Map) {
            return (Map<String, Object>) value;
        }
        return null;
    }

    /**
     * Checks if the map contains the specified key and the value is not null.
     *
     * @param map The source map
     * @param key The key to check
     * @return true if the key exists and its value is not null
     */