statusCode: 400,
		cause:      err,
	}
}

func errIllegalSQLFunctionArgument(err error) *s3Error {
	return &s3Error{
		code:       "IllegalSqlFunctionArgument",
		message:    "Illegal argument was used in the SQL function.",
		statusCode: 400,
		cause:      err,
	}
}

func errMultipleDataSourcesUnsupported(err error) *s3Error {
	return &s3Error{
		code:       "MultipleDataSourcesUnsupported",

    static void staticOneArg(String unused) {}
  }

  public void testSubclassThatTriesToOverrideBadStaticMethod() {
    shouldFail(SubclassThatTriesToOverrideBadStaticMethod.class);
  }

  private static final class HardToCreate {
    private HardToCreate(String unused) {}
  }

  @SuppressWarnings("unused") // used by reflection
  private static class CanCreateDefault {
    @Keep

    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());

    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() {

      @SuppressWarnings("unused") // https://errorprone.info/bugpattern/FutureReturnValueIgnored
      Future<?> possiblyIgnoredError = threadPool.submit(new Producer(q, 20));
      @SuppressWarnings("unused") // https://errorprone.info/bugpattern/FutureReturnValueIgnored
      Future<?> possiblyIgnoredError1 = threadPool.submit(new Producer(q, 20));

    assertEquals(TypeToken.of(String.class), invokable.getOwnerType());
  }

  private static final class FinalClass {
    @SuppressWarnings("unused") // used by reflection
    void notFinalMethod() {}
  }

  public void testNonFinalMethodInFinalClass_isOverridable() throws Exception {

   *
   * How this works is best explained with an example:
   *
   * For a RateLimiter that produces 1 token per second, every second that goes by with the
   * RateLimiter being unused, we increase storedPermits by 1. Say we leave the RateLimiter unused
   * for 10 seconds (i.e., we expected a request at time X, but we are at time X + 10 seconds before
   * a request actually arrives; this is also related to the point made in the last paragraph), thus

      for (int j = 0; j < NUM_THREADS; j++) {
        @SuppressWarnings("unused") // https://errorprone.info/bugpattern/FutureReturnValueIgnored
        Future<?> possiblyIgnoredError = executorService.submit(addTask);
      }
      @SuppressWarnings("unused") // https://errorprone.info/bugpattern/FutureReturnValueIgnored
      Future<?> possiblyIgnoredError = executorService.submit(executeTask);

  }

  private static class WithWildcardType {

    @SuppressWarnings("unused")
    void withoutBound(List<?> list) {}

    @SuppressWarnings("unused")
    void withObjectBound(List<? extends Object> list) {}

    @SuppressWarnings("unused")
    void withUpperBound(List<? extends int[][]> list) {}

    @SuppressWarnings("unused")
    void withLowerBound(List<? super String[][]> list) {}