HashFunction[] hashFunctions = new HashFunction[hashFunctionsNeeded];
    hashFunctions[0] = Murmur3_128HashFunction.GOOD_FAST_HASH_128;
    int seed = GOOD_FAST_HASH_SEED;
    for (int i = 1; i < hashFunctionsNeeded; i++) {
      seed += 1500450271; // a prime; shouldn't matter
      hashFunctions[i] = murmur3_128(seed);
    }
    return new ConcatenatedHashFunction(hashFunctions);
  }

  /**

import org.jspecify.annotations.NullUnmarked;

/** Tests for AbstractNonStreamingHashFunction. */
@NullUnmarked
public class AbstractNonStreamingHashFunctionTest extends TestCase {
  /**
   * Constructs two trivial HashFunctions (output := input), one streaming and one non-streaming,
   * and checks that their results are identical, no matter which newHasher version we used.
   */
  public void testExhaustive() {
    List<Hasher> hashers =