public Counter<?, ?> getExistingCounter(CounterName name) {
    return counters.get(name);
  }
@Test
  public void testNonMatchingCounterName() {
    CounterName cn1 = CounterName.named("myCounter1, origin=");
    CounterName cn2 = CounterName.named("myCounter1").withOrigin(", origin=");

    assertThat(cn1.getFlatName(), equalTo(cn1.getFlatName()));
    Counter<?, ?> c1 = counterSet.longSum(cn1);
    assertThat(c1, not(equalTo(counterSet.getExistingCounter(cn2))));
  }