@CheckForNull Object p4) {
    if (reference == null) {
      throw new NullPointerException(lenientFormat(errorMessageTemplate, p1, p2, p3, p4));
    }
    return reference;
  }

  /*
   * All recent hotspots (as of 2009) *really* like to have the natural code
   *
   * if (guardExpression) {
   *    throw new BadException(messageExpression);
   * }
   *

                new ExclusionDependencySelector());
    }

    protected DependencyGraphTransformer getDependencyGraphTransformer() {
        return new ChainedDependencyGraphTransformer(
                new ConflictResolver(
                        new ConfigurableVersionSelector(), new ManagedScopeSelector(getScopeManager()),
                        new SimpleOptionalitySelector(), new ManagedScopeDeriver(getScopeManager())),

            throw new IllegalArgumentException("reader or inputStream must be non null");
        }
        try {
            InputSource source = null;
            if (request.getModelId() != null || request.getLocation() != null) {
                source = new InputSource(request.getModelId(), request.getLocation());
            }
            MavenToolchainsStaxReader xml = new MavenToolchainsStaxReader();

     */
    @Test
    public void testCopyBeanToBean_converter() throws Exception {
        final Bean bean = new Bean();
        bean.aaa = "1,000";
        final Bean2 bean2 = new Bean2();
        BeanUtil.copyBeanToBean(bean, bean2, converter(new NumberConverter("#,##0")));
        assertThat(bean2.aaa, is(new Integer(1000)));
    }

    /**
     * @throws Exception
     */
    @Test

    private final List<Listener> listeners = new CopyOnWriteArrayList<>();
    private final Map<org.eclipse.aether.graph.DependencyNode, Node> allNodes =
            Collections.synchronizedMap(new WeakHashMap<>());
    private final Map<org.eclipse.aether.artifact.Artifact, Artifact> allArtifacts =
            Collections.synchronizedMap(new WeakHashMap<>());

            List<MetadataRequest> metadataReqs =
                    new ArrayList<>(request.getRepositories().size());

            metadataReqs.add(new MetadataRequest(metadata, null, request.getRequestContext()));

            for (RemoteRepository repository : request.getRepositories()) {
                MetadataRequest metadataRequest =
                        new MetadataRequest(metadata, repository, request.getRequestContext());

  }

  public void testConcat_refStream_closeIsPropagated_exceptionsChained() {
    RuntimeException exception1 = new IllegalArgumentException("exception from stream 1");
    RuntimeException exception2 = new IllegalStateException("exception from stream 2");
    RuntimeException exception3 = new ArithmeticException("exception from stream 3");
    Stream<String> stream1 = Stream.of("foo", "bar").onClose(doThrow(exception1));

        RegexBasedInterpolator interpolator = new RegexBasedInterpolator();

        interpolator.addValueSource(new MapBasedValueSource(request.getSession().getUserProperties()));

        interpolator.addValueSource(new MapBasedValueSource(request.getSession().getSystemProperties()));

        try {
            interpolator.addValueSource(new EnvarBasedValueSource());
        } catch (IOException e) {

                throw new InvalidVersionSpecificationException(
                        "Only fully-qualified sets allowed in multiple set scenario: " + spec);
            } else {
                version = new DefaultArtifactVersion(process);
                restrictions.add(Restriction.EVERYTHING);
            }
        }

        cached = new VersionRange(version, restrictions);

        switch (parts.length) {
            case 3:
                s = new DefaultArtifact(parts[0], parts[1], "*", "*", parts[2]);
                break;
            case 4:
                s = new DefaultArtifact(parts[0], parts[1], "*", parts[2], parts[3]);
                break;
            case 5:
                s = new DefaultArtifact(parts[0], parts[1], parts[2], parts[3], parts[4]);
                break;