return new NullFriendlyComparator<>();
  }

  private static final class NullFriendlyComparator<T> implements Comparator<T>, Serializable {
    @Override
    public int compare(T left, T right) {
      return String.valueOf(left).compareTo(String.valueOf(right));
    }
  }

      new Ordering<Invokable<?, ?>>() {
        @Override
        public int compare(Invokable<?, ?> left, Invokable<?, ?> right) {
          return left.getName().compareTo(right.getName());
        }
      };

  private static final Ordering<Invokable<?, ?>> BY_PARAMETERS =
      new Ordering<Invokable<?, ?>>() {
        @Override
        public int compare(Invokable<?, ?> left, Invokable<?, ?> right) {

        assertTrue(artifact1.compareTo(artifact2) < 0);
        assertTrue(artifact2.compareTo(artifact1) > 0);

        Artifact artifact = new DefaultArtifact(
                groupId, artifactId, VersionRange.createFromVersion("5.0"), scope, type, classifier, artifactHandler);
        assertTrue(artifact.compareTo(artifact1) == 0);
        assertTrue(artifact1.compareTo(artifact) == 0);
    }

    @Test

                    || res2.getUpperBound() == null
                    || res1.getLowerBound().compareTo(res2.getUpperBound()) <= 0) {
                if (res1.getUpperBound() == null
                        || res2.getLowerBound() == null
                        || res1.getUpperBound().compareTo(res2.getLowerBound()) >= 0) {
                    ArtifactVersion lower;
                    ArtifactVersion upper;

/**
 * Resolves conflicting artifacts by always selecting the oldest declaration. Oldest is defined as the
 * declaration whose version is less according to <code>ArtifactVersion.compareTo</code>.
 *
 * @see ArtifactVersion#compareTo
 * @since 3.0
 */
@Named("oldest")
@Singleton
@Deprecated
public class OldestConflictResolver implements ConflictResolver {

      for (RoundingMode mode : asList(CEILING, UP)) {
        int result = BigIntegerMath.log2(x, mode);
        assertThat(ZERO.setBit(result)).isAtLeast(x);
        assertTrue(result == 0 || ZERO.setBit(result - 1).compareTo(x) < 0);
      }
    }
  }

  // Relies on the correctness of isPowerOfTwo(BigInteger).
  public void testLog2Exact() {
    for (BigInteger x : POSITIVE_BIGINTEGER_CANDIDATES) {

        assertEquals(
            ORDERING.compare(i, 3) < 0 || (ORDERING.compare(i, 3) == 0 && lBoundType == CLOSED),
            range.contains(i));
        assertEquals(
            ORDERING.compare(i, 3) > 0 || (ORDERING.compare(i, 3) == 0 && lBoundType == OPEN),
            range.tooHigh(i));
        assertFalse(range.tooLow(i));
      }
    }
  }

  public void testDoublyBoundedAgainstRange() {

            return compareTo(artifactVersion) == 0;
        }

        return false;
    }

    @Override
    public int compareTo(ArtifactVersion otherVersion) {
        if (otherVersion instanceof DefaultArtifactVersion defaultArtifactVersion) {
            return this.comparable.compareTo(defaultArtifactVersion.comparable);
        } else {

    }

    private void assertVersionOlder(String left, String right) {
        assertTrue(
                newArtifactVersion(left).compareTo(newArtifactVersion(right)) < 0,
                left + " should be older than " + right);
        assertTrue(
                newArtifactVersion(right).compareTo(newArtifactVersion(left)) > 0,
                right + " should be newer than " + left);
    }

     *
     * @param v the version to compare against
     * @return whether this version is a least the given one
     */
    public boolean atLeast(final DialectVersion v) {
        return ordinal() >= v.ordinal();
    }

    /**
     * Check if this dialect version is at most the specified version
     *
     * @param v the version to compare against