}

  public void testGetSubtype_baseClassWithLessTypeArgs() {
    class SingleGenericExtendsBase<T> extends Base {}
    class DoubleGenericExtendsSingleGeneric<T1, TUnused> extends SingleGenericExtendsBase<T1> {}
    TypeToken<SingleGenericExtendsBase<?>> supertype =
        new TypeToken<SingleGenericExtendsBase<?>>() {};

  }

  public void testGetSubtype_baseClassWithLessTypeArgs() {
    class SingleGenericExtendsBase<T> extends Base {}
    class DoubleGenericExtendsSingleGeneric<T1, TUnused> extends SingleGenericExtendsBase<T1> {}
    TypeToken<SingleGenericExtendsBase<?>> supertype =
        new TypeToken<SingleGenericExtendsBase<?>>() {};

    public static void christenPoodle(String unused) {
      throw new UnsupportedOperationException();
    }
  }

  private static class ThrowsSomethingElse {
    @Keep
    public static void christenPoodle(String unused) {
      throw new RuntimeException();
    }
  }

  private interface InterfaceStaticMethodFailsToCheckNull {
    static String create(String unused) {
      return "I don't check";
    }

   */

  public void testSize() {
    int unused = create().size();
  }

  public void testIsEmpty() {
    boolean unused = create().isEmpty();
  }

  public void testRemove() {
    create().remove(null);
  }

  public void testClear() {
    create().clear();
  }

  public void testContainsKey() {
    boolean unused = create().containsKey(null);
  }

    CountDownLatch latch = new CountDownLatch(1);
    Object unused =
        new Object() {
          @SuppressWarnings({"removal", "Finalize"}) // b/487687332
          @Override
          protected void finalize() {
            latch.countDown();
          }
        };
    unused = null; // Hint to the JIT that unused is unreachable
    GcFinalization.await(latch);
    assertEquals(0, latch.getCount());
  }

    executor.shutdown();
  }

  public void testCallableStartsAfterFirstFutureCompletes() {
    @SuppressWarnings({"unused", "nullness"})
    Future<?> possiblyIgnoredError = serializer.submitAsync(firstCallable, directExecutor());
    TestCallable secondCallable = new TestCallable(immediateVoidFuture());
    @SuppressWarnings({"unused", "nullness"})
    Future<?> possiblyIgnoredError1 = serializer.submitAsync(secondCallable, directExecutor());

common:linux --copt="-Wno-deprecated-declarations"
common:linux --copt="-Wno-ignored-attributes"
common:linux --copt="-Wno-array-bounds"

# Add unused-result as an error on Linux.
common:linux --copt="-Wunused-result"
common:linux --copt="-Werror=unused-result"
# Add switch as an error on Linux.
common:linux --copt="-Wswitch"
common:linux --copt="-Werror=switch"

# Linux ARM64 specific options

    executor.shutdown();
  }

  public void testCallableStartsAfterFirstFutureCompletes() {
    @SuppressWarnings({"unused", "nullness"})
    Future<?> possiblyIgnoredError = serializer.submitAsync(firstCallable, directExecutor());
    TestCallable secondCallable = new TestCallable(immediateVoidFuture());
    @SuppressWarnings({"unused", "nullness"})
    Future<?> possiblyIgnoredError1 = serializer.submitAsync(secondCallable, directExecutor());

        String a,
        int b,
        // oneConstantOnly doesn't matter since it's not nullable and can be only 1 value.
        @SuppressWarnings("unused") OneConstantEnum oneConstantOnly,
        // noConstant doesn't matter since it can only be null
        @SuppressWarnings("unused") @Nullable NoConstantEnum noConstant) {
      return new GoodEquals(a, b);
    }

    // instance method ignored
    public Object badIgnored() {

    CountDownLatch latch = new CountDownLatch(1);
    Object unused =
        new Object() {
          @SuppressWarnings({"removal", "Finalize"}) // b/487687332
          @Override
          protected void finalize() {
            latch.countDown();
          }
        };
    unused = null; // Hint to the JIT that unused is unreachable
    GcFinalization.await(latch);
    assertEquals(0, latch.getCount());
  }