Method contains

output/java_guava/1.4.17/Multisets.java:1018–1033

(@Nullable Object o)

    abstract Multiset<E> multiset();

    @Override
    public boolean contains(@Nullable Object o) {
      if (o instanceof Entry) {
        /*
         * The GWT compiler wrongly issues a warning here.
         */
        @SuppressWarnings("cast")
        Entry<?> entry = (Entry<?>) o;
        if (entry.getCount() <= 0) {
          return false;
        }
        int count = multiset().count(entry.getElement());
        return count == entry.getCount();
      }
      return false;
    }

    // GWT compiler warning; see contains().