problemCollector.add(Problem.Severity.ERROR, "MESSAGE", 3, 5, new Exception());
        ToolchainsBuildingException e = new ToolchainsBuildingException(problemCollector.getProblems());
        assertEquals(
                "1 problem was encountered while building the effective toolchains" + LS
                        + "[ERROR] MESSAGE @ line 3, column 5" + LS,

    public boolean add(@ParametricNullness E element) {
      throw new UnsupportedOperationException();
    }

    @Override
    public int add(@ParametricNullness E element, int occurrences) {
      throw new UnsupportedOperationException();
    }

    @Override
    public boolean addAll(Collection<? extends E> elementsToAdd) {
      throw new UnsupportedOperationException();
    }

    @Override

  }

  public static Test suite() {
    TestSuite suite = new TestSuite();

    suite.addTestSuite(ForwardingSetTest.class);
    suite.addTest(
        SetTestSuiteBuilder.using(
                new TestStringSetGenerator() {
                  @Override
                  protected Set<String> create(String[] elements) {
                    return new StandardImplForwardingSet<>(Sets.newLinkedHashSet(asList(elements)));

    assertThat(diff.averageLoadPenalty()).isEqualTo(14.0 / (26 + 22));
    assertEquals(4, diff.evictionCount());

    assertEquals(new CacheStats(0, 0, 0, 0, 0, 0), one.minus(two));
  }

  public void testPlus() {
    CacheStats one = new CacheStats(11, 13, 15, 13, 11, 9);
    CacheStats two = new CacheStats(53, 47, 41, 39, 37, 35);

    CacheStats sum = two.plus(one);
    assertEquals(124, sum.requestCount());

                if (s == null) {
                    if (_ss < 0 || _ss > 0xFFFF) throw new NdrException( NdrException.INVALID_CONFORMANCE );
                    s = new DfsInfo1[_ss];
                }
                _src = _src.derive(_si);
                for (int _i = 0; _i < _ss; _i++) {
                    if (s[_i] == null) {
                        s[_i] = new DfsInfo1();
                    }
                    s[_i].decode(_src);

       */
      if (version < jellyBean) {
        return new ThrowingCreator();
      }

      // Don't merge these catch() blocks, let alone use ReflectiveOperationException directly:
      // b/65343391
    } catch (NoSuchFieldException e) {
      // The JELLY_BEAN field doesn't exist because we're running on a version before Jelly Bean :)
      return new ThrowingCreator();
    } catch (ClassNotFoundException e) {

        this.source = location.getSource() != null ? new InputSource(location.getSource()) : null;
        this.locations = location.getLocations().isEmpty()
                ? null
                : location.getLocations().entrySet().stream()
                        .collect(Collectors.toMap(
                                e -> e.getKey(),
                                e -> e.getValue() == location ? this : new InputLocation(e.getValue())));

            int _nodei = _src.index;
            _src.advance(1 * _nodes);

            if (node == null) {
                if (_nodes < 0 || _nodes > 0xFFFF) throw new NdrException( NdrException.INVALID_CONFORMANCE );
                node = new byte[_nodes];
            }
            _src = _src.derive(_nodei);
            for (int _i = 0; _i < _nodes; _i++) {
                node[_i] = (byte)_src.dec_ndr_small();
            }

     */
    public static final ArtifactStatus NONE = new ArtifactStatus("none", 0);

    /**
     * No trust - information was generated with defaults.
     */
    public static final ArtifactStatus GENERATED = new ArtifactStatus("generated", 1);

    /**
     * Low trust - was converted from the Maven 1.x repository.
     */
    public static final ArtifactStatus CONVERTED = new ArtifactStatus("converted", 2);

    /**

    public void test_empty() {
        final FieldConfigs fieldConfigs = new FieldConfigs(Collections.emptyMap());
        assertTrue(fieldConfigs.getConfig("test").isEmpty());
    }

    public void test_values() {
        final Map<String, String> params = Maps.of("foo", "bar");
        FieldConfigs fieldConfigs = new FieldConfigs(params);
        assertTrue(fieldConfigs.getConfig("test").isEmpty());