code: @Test public void fromPeriods() throws Exception {
    Iterator<String> iterator=new RelaxedNames("spring.value").iterator();
    assertThat(iterator.next(),equalTo("spring.value"));
    assertThat(iterator.next(),equalTo("spring_value"));
    assertThat(iterator.next(),equalTo("springValue"));
    assertThat(iterator.next(),equalTo("springvalue"));
    assertThat(iterator.next(),equalTo("SPRING.VALUE"));
    assertThat(iterator.next(),equalTo("SPRING_VALUE"));
    assertThat(iterator.next(),equalTo("SPRINGVALUE"));
    assertThat(iterator.hasNext(),equalTo(false));
  }
  