for (Invokable<?, ?> factory : getFactoriesToTest()) {
        try {
          testEqualsUsing(factory);
        } catch (FactoryMethodReturnsNullException e) {
          // If the factory returns null, we just skip it.
        }
      }
      return this;
    }

    /**
     * Runs serialization test on the return values of the static methods.
     *

      for (Invokable<?, ?> factory : getFactoriesToTest()) {
        try {
          testEqualsUsing(factory);
        } catch (FactoryMethodReturnsNullException e) {
          // If the factory returns null, we just skip it.
        }
      }
      return this;
    }

    /**
     * Runs serialization test on the return values of the static methods.
     *