} catch (ClassCastException wastNotComparableToOurType) {
        return false;
      }
    }
    return false;
  }

  // Prevent "missing hashCode" warning by explicitly forcing subclasses implement it
  @Override
  public abstract int hashCode();

  /*
   * The implementation neither produces nor consumes any non-null instance of type C, so
   * casting the type parameter is safe.
   */

    }

    /** {@inheritDoc} */
    public int hashCode() {
        int result = 17;

        result = 37 * result + getGroupId().hashCode();
        result = 37 * result + getArtifactId().hashCode();
        result = 37 * result + getType().hashCode();
        if (getVersion() != null) {
            result = 37 * result + getVersion().hashCode();
        }

            return true;
        }
        return false;
    }

    @Override
    public int hashCode() {
        return loc.hashCode() + changefreq.hashCode() + lastmod.hashCode() + priority.hashCode();
    }

    @Override
    public String toString() {

 * additional documentation, including:
 *
 * <ul>
 *   <li><a
 *       href="https://github.com/google/guava/wiki/GraphsExplained#equals-hashcode-and-graph-equivalence">
 *       {@code equals()}, {@code hashCode()}, and graph equivalence</a>
 *   <li><a href="https://github.com/google/guava/wiki/GraphsExplained#synchronization">
 *       Synchronization policy</a>

import static org.junit.jupiter.api.Assertions.assertTrue;

/**
 * Tests {@code Scm}.
 *
 */
class ScmTest {

    @Test
    void testHashCodeNullSafe() {
        new Scm().hashCode();
    }

    @Test
    void testEqualsNullSafe() {
        assertFalse(new Scm().equals(null));

        new Scm().equals(new Scm());
    }

    @Test
    void testEqualsIdentity() {

      return (c == other.c) && (d == other.d) && (k0 == other.k0) && (k1 == other.k1);
    }
    return false;
  }

  @Override
  public int hashCode() {
    return (int) (getClass().hashCode() ^ c ^ d ^ k0 ^ k1);
  }

  private static final class SipHasher extends AbstractStreamingHasher {
    private static final int CHUNK_SIZE = 8;

    // The number of compression rounds.

    new EqualsTester().addEqualityGroup(jvmType, ourType).testEquals();
    assertEquals(jvmType.toString(), ourType.toString());
    assertEquals(jvmType.hashCode(), ourType.hashCode());
    assertEquals(HashMap.class, ourType.getRawType());
    assertThat(ourType.getActualTypeArguments())
        .asList()
        .containsExactlyElementsIn(asList(jvmType.getActualTypeArguments()))

    new EqualsTester().addEqualityGroup(jvmType, ourType).testEquals();
    assertEquals(jvmType.toString(), ourType.toString());
    assertEquals(jvmType.hashCode(), ourType.hashCode());
    assertEquals(HashMap.class, ourType.getRawType());
    assertThat(ourType.getActualTypeArguments())
        .asList()
        .containsExactlyElementsIn(asList(jvmType.getActualTypeArguments()))

   * hereby disclaims copyright to this source code.
   */
  static int smear(int hashCode) {
    return (int) (C2 * Integer.rotateLeft((int) (hashCode * C1), 15));
  }

  static int smearedHash(@CheckForNull Object o) {
    return smear((o == null) ? 0 : o.hashCode());
  }

  private static final int MAX_TABLE_SIZE = Ints.MAX_POWER_OF_TWO;

   *
   * <p>The hash code of a multimap is defined as the hash code of the map view, as returned by
   * {@link Multimap#asMap}.
   *
   * @see Map#hashCode
   */
  @Override
  public int hashCode() {
    return asMap().hashCode();
  }

  /**
   * Returns a string representation of the multimap, generated by calling {@code toString} on the
   * map returned by {@link Multimap#asMap}.
   *