Set<Object> keys = cache.asMap().keySet();
      assertFalse(keys.remove(null));
      assertFalse(keys.remove(6));
      assertFalse(keys.remove(-6));
      assertFalse(keys.removeAll(asList(null, 0, 15, 1500)));
      assertFalse(keys.retainAll(asList(null, 0, 15, 1500)));
      checkEmpty(keys);
      checkEmpty(cache);
    }
  }

  public void testKeySet_remove() {
    for (LoadingCache<Object, Object> cache : caches()) {

    assertEquals(HashMultiset.create(asList("a", "b", "a", "c")), multiset);
  }

  public void testBuilderAddAll() {
    List<String> a = asList("a", "b");
    List<String> b = asList("c", "d");
    ImmutableMultiset<String> multiset =
        new ImmutableMultiset.Builder<String>().addAll(a).addAll(b).build();
    assertEquals(HashMultiset.create(asList("a", "b", "c", "d")), multiset);
  }

					if local == "" {
						local = peer
					}
				}
			}

			allSet.Add(peer)
		}
	}

	return allSet.ToSlice(), local
}

// Endpoints - list of same type of endpoint.
type Endpoints []Endpoint

// HTTPS - returns true if secure for URLEndpointType.
func (endpoints Endpoints) HTTPS() bool {
	return endpoints[0].HTTPS()
}

        actual = Arrays.asList(KuromojiCSVUtil.parse(value));
        assertThat(actual, is(expected));

        value = "\"Fess,FESS\"";
        expected = Arrays.asList("\"Fess,FESS\"");
        actual = Arrays.asList(KuromojiCSVUtil.parse(value));
        assertThat(actual, is(expected));

        value = " ";
        expected = Arrays.asList(" ");

    assertEquals(HashMap.class, ourType.getRawType());
    assertThat(ourType.getActualTypeArguments())
        .asList()
        .containsExactlyElementsIn(asList(jvmType.getActualTypeArguments()))
        .inOrder();
    assertEquals(
        Arrays.asList(String.class, Types.newArrayType(Types.newArrayType(int.class))),
        Arrays.asList(ourType.getActualTypeArguments()));
    assertEquals(null, ourType.getOwnerType());
  }

    assertEquals(HashMap.class, ourType.getRawType());
    assertThat(ourType.getActualTypeArguments())
        .asList()
        .containsExactlyElementsIn(asList(jvmType.getActualTypeArguments()))
        .inOrder();
    assertEquals(
        Arrays.asList(String.class, Types.newArrayType(Types.newArrayType(int.class))),
        Arrays.asList(ourType.getActualTypeArguments()));
    assertEquals(null, ourType.getOwnerType());
  }

```

////

/// tip | "Tipp"

Das alles mag gekünstelt wirken. Und es ist möglicherweise noch nicht ganz klar, welchen Nutzen das hat.

Diese Beispiele sind bewusst einfach gehalten, zeigen aber, wie alles funktioniert.

In den Kapiteln zum Thema Sicherheit gibt es Hilfsfunktionen, die auf die gleiche Weise implementiert werden.

                Contributor.newBuilder().email("******@****.***").build();

        Model target =
                Model.newBuilder().contributors(Arrays.asList(contributor)).build();

        Model source =
                Model.newBuilder().contributors(Arrays.asList(contributor)).build();

        Model merged = mavenMerger.merge(target, source, true, null);

        assertThat(merged.getContributors(), contains(contributor));

    assertEquals(HashMultiset.create(asList("a", "b", "a", "c")), multiset);
  }

  public void testBuilderAddAll() {
    List<String> a = asList("a", "b");
    List<String> b = asList("c", "d");
    ImmutableSortedMultiset<String> multiset =
        ImmutableSortedMultiset.<String>naturalOrder().addAll(a).addAll(b).build();
    assertEquals(HashMultiset.create(asList("a", "b", "c", "d")), multiset);
  }

        multimap = LinkedHashMultimap.create();
        multimap.putAll("foo", asList(2, 3));
        multimap.putAll("bar", asList(4, 5));
        multimap.putAll("foo", asList(6));
        multimap.putAll("baz", asList(7, 8));
        multimap.putAll("dog", asList(9));
        multimap.putAll("bar", asList(10, 11));
        multimap.putAll("cat", asList(12, 13, 14));
        return multimap.asMap().entrySet().iterator();
      }