createMapMaker().weakValues(), createMapMaker().weakKeys().weakValues());
  }

  public void testNullParameters() throws Exception {
    NullPointerTester tester = new NullPointerTester();
    tester.testAllPublicInstanceMethods(makeMap(createMapMaker()));
  }

    NullPointerTester tester = new NullPointerTester();
    tester.testAllPublicStaticMethods(Ordering.class);

    // any Ordering<Object> instance that accepts nulls should be good enough
    tester.testAllPublicInstanceMethods(Ordering.usingToString().nullsFirst());
  }

  private static <T extends @Nullable Object> List<T> shuffledCopy(List<T> in, Random random) {
    List<T> mutable = newArrayList(in);

    NullPointerTester tester = new NullPointerTester();
    tester.testAllPublicStaticMethods(Ordering.class);

    // any Ordering<Object> instance that accepts nulls should be good enough
    tester.testAllPublicInstanceMethods(Ordering.usingToString().nullsFirst());
  }

  private static <T extends @Nullable Object> List<T> shuffledCopy(List<T> in, Random random) {
    List<T> mutable = newArrayList(in);

  public <T> void testNulls() {
    new NullPointerTester().testAllPublicStaticMethods(TypeToken.class);
    new NullPointerTester()
        .setDefault(TypeParameter.class, new TypeParameter<T>() {})
        .testAllPublicInstanceMethods(TypeToken.of(String.class));
  }

  private static class Assignability<From, To> {

    boolean isAssignable() {

  public <T> void testNulls() {
    new NullPointerTester().testAllPublicStaticMethods(TypeToken.class);
    new NullPointerTester()
        .setDefault(TypeParameter.class, new TypeParameter<T>() {})
        .testAllPublicInstanceMethods(TypeToken.of(String.class));
  }

  private static class Assignability<From, To> {

    boolean isAssignable() {