String s = new String(new char[] {randomLowSurrogate(random)});
        for (PrimitiveSink sink : sinks) {
          sink.putUnencodedChars(s);
        }
      }
    },
    PUT_STRING_HIGH_SURROGATE() {
      @Override
      void performAction(Random random, Iterable<? extends PrimitiveSink> sinks) {
        String s = new String(new char[] {randomHighSurrogate(random)});

    SerializableTester.reserializeAndAssert(BloomFilter.create(new CustomFunnel(), 100));
  }

  private static final class CustomFunnel implements Funnel<Long> {
    @Override
    public void funnel(Long value, PrimitiveSink into) {
      into.putLong(value);
    }

    @Override
    public boolean equals(@Nullable Object object) {
      return (object instanceof CustomFunnel);
    }

    @Override