### Question:
BooleanOrAccumulatorParam implements AccumulatorParam<Boolean> { @Nonnull @Override public Boolean zero(@Nonnull final Boolean initialValue) { return initialValue; }  @Nonnull @Override Boolean addAccumulator(@Nonnull final Boolean t1, @Nonnull final Boolean t2); @Nonnull @Override Boolean addInPlace(@Nonnull final Boolean r1, @Nonnull final Boolean r2); @Nonnull @Override Boolean zero(@Nonnull final Boolean initialValue);  }### Answer:
@Test public void zero() { final BooleanOrAccumulatorParam param = new BooleanOrAccumulatorParam(); Assert.assertFalse(param.zero(false)); Assert.assertTrue(param.zero(true)); }