Why make this replacement?
assertThat(a,is(b)) =》assertThat(a).containsExactly(b)
closeTo(123.123,1) => isCloseTo(123.123,within(1))

I think it should
assertThat(a,is(b)) =》 assertThat(a).isEqualTo(b)
closeTo(123.123,1) => isCloseTo(123.123,within(1.0))