@SuppressWarnings({
    "ObjectEqualsForPrimitives", // test of a trivial call
    "EqualsInteger", // test of a trivial call
    "EqualsLong", // b/273939864
    "EqualsDouble", // b/273939864
    "EqualsFloat", // b/273939864
    "YodaCondition", // test of reversed call
  })
  public void testEqual() throws Exception {
    assertTrue(Objects.equal(1, 1));
    assertTrue(Objects.equal(null, null));