Multiset<String> ms = LinkedHashMultiset.create();
    ms.add("a", 3);
    ms.add("c", 1);
    ms.add("b", 2);

    assertEquals("[a x 3, c, b x 2]", ms.toString());
  }

  public void testLosesPlaceInLine() throws Exception {
    Multiset<String> ms = LinkedHashMultiset.create();
    ms.add("a");
    ms.add("b", 2);
    ms.add("c");
    assertThat(ms.elementSet()).containsExactly("a", "b", "c").inOrder();

    val builder = CertificatePinner.Builder()
    assertFailsWith<IllegalArgumentException> {
      builder.add("example.com", "md5/DmxUShsZuNiqPQsX2Oi9uv2sCnw=")
    }
  }

  @Test
  fun malformedBase64() {
    val builder = CertificatePinner.Builder()
    assertFailsWith<IllegalArgumentException> {
      builder.add("example.com", "sha1/DmxUShsZuNiqPQsX2Oi9uv2sCnw*")
    }
  }

  abstract void handleAllCompleted();

  /** Adds the chain to the seen set, and returns whether all the chain was new to us. */
  private static boolean addCausalChain(Set<Throwable> seen, Throwable param) {
    // Declare a "true" local variable so that the Checker Framework will infer nullness.
    Throwable t = param;

    for (; t != null; t = t.getCause()) {
      boolean firstTimeSeen = seen.add(t);
      if (!firstTimeSeen) {
        /*

  protected List<Class<? extends AbstractTester>> getTesters() {
    List<Class<? extends AbstractTester>> testers = new ArrayList<>();
    testers.add(BiMapEntrySetTester.class);
    testers.add(BiMapPutTester.class);
    testers.add(BiMapInverseTester.class);
    testers.add(BiMapRemoveTester.class);
    testers.add(BiMapClearTester.class);
    return testers;
  }

  enum NoRecurse implements Feature<Void> {
    INVERSE;

    @Override

      derivedFeatures.add(CollectionFeature.FAILS_FAST_ON_CONCURRENT_MODIFICATION);
    }
    // add the intersection of CollectionFeature.values() and mapFeatures
    for (CollectionFeature feature : CollectionFeature.values()) {
      if (mapFeatures.contains(feature)) {
        derivedFeatures.add(feature);
      }
    }
    // add the intersection of CollectionSize.values() and mapFeatures

	if err := scanner.Err(); err != nil {
		t.Fatalf("error reading symbols: %v", err)
	}
	return syms
}

func runAddr2Line(t *testing.T, dbgExePath, addr string) (funcname, path, lineno string) {
	cmd := testenv.Command(t, testenv.Executable(t), dbgExePath)
	cmd.Stdin = strings.NewReader(addr)
	out, err := cmd.CombinedOutput()
	if err != nil {
		t.Fatalf("go tool addr2line %v: %v\n%s", os.Args[0], err, string(out))
	}

    ms.add("foo");
    ms.add("a");
    ms.add("bar");
    ms.add("b");
    ms.add("c");

    assertEquals(2, ms.count("bar"));
    assertEquals(3, ms.count("b"));

    Multiset<String> ms2 = TreeMultiset.create(DEGENERATE_COMPARATOR);

    ms2.add("cat", 2);
    ms2.add("x", 3);

    assertEquals(ms, ms2);
    assertEquals(ms2, ms);

	rules2Case4 := make(Rules)
	rules2Case4.Add(NewPattern("2010*", ""), TargetID{"1", "webhook"})
	rules2Case4.Add(NewPattern("", "*.png"), TargetID{"2", "amqp"})
	expectedResultCase4 := make(Rules)
	expectedResultCase4.Add(NewPattern("*", "*"), TargetID{"1", "webhook"})

	rulesCase5 := make(Rules)
	rulesCase5.Add(NewPattern("*", ""), TargetID{"1", "webhook"})

        me.add(createMojoExecution("initialize", "default-initialize", INITIALIZE));
        me.add(createMojoExecution("resources", "default-resources", PROCESS_RESOURCES));
        me.add(createMojoExecution("compile", "default-compile", COMPILE));
        me.add(createMojoExecution("testResources", "default-testResources", PROCESS_TEST_RESOURCES));

  public void testRunOnPopulatedList() throws Exception {
    Executor exec = newCachedThreadPool();
    CountDownLatch countDownLatch = new CountDownLatch(3);
    list.add(new MockRunnable(countDownLatch), exec);
    list.add(new MockRunnable(countDownLatch), exec);
    list.add(new MockRunnable(countDownLatch), exec);
    assertEquals(3L, countDownLatch.getCount());

    list.execute();