*/
  protected long edgeCount() {
    long degreeSum = 0L;
    for (N node : nodes()) {
      degreeSum += degree(node);
    }
    // According to the degree sum formula, this is equal to twice the number of edges.
    checkState((degreeSum & 1) == 0);
    return degreeSum >>> 1;
  }

  /**
   * An implementation of {@link BaseGraph#edges()} defined in terms of {@link Graph#nodes()} and

	)

	ErrInvalidNumberOfErasureEndpoints = newErrFn(
		"Invalid total number of endpoints for erasure mode",
		"Please provide number of endpoints greater or equal to 2",
		"For more information, please refer to https://docs.min.io/community/minio-object-store/operations/concepts/erasure-coding.html",
	)

	ErrStorageClassValue = newErrFn(
		"Invalid storage class value",

            () -> InetAddresses.fromIPv4BigInteger(BigInteger.valueOf(-1L)));
    assertThat(expected)
        .hasMessageThat()
        .isEqualTo("BigInteger must be greater than or equal to 0");
  }

  public void testFromIpv6BigIntegerThrowsLessThanZero() {
    IllegalArgumentException expected =
        assertThrows(
            IllegalArgumentException.class,

// does not exist in enough quorum nodes.
func refreshLock(ctx context.Context, ds *Dsync, id, source string, quorum int) (bool, error) {
	restClnts, _ := ds.GetLockers()

	// Create buffered channel of size equal to total number of nodes.
	ch := make(chan refreshResult, len(restClnts))
	var wg sync.WaitGroup

	args := LockArgs{
		UID: id,
	}

	for index, c := range restClnts {
		wg.Add(1)

         *
         * @param h1 the first hour
         * @param m1 the first minute
         * @param h2 the second hour
         * @param m2 the second minute
         * @return positive if first time is earlier, 0 if equal, negative if later
         */
        protected int compareTime(final int h1, final int m1, final int h2, final int m2) {
            if (h1 < h2) {
                return 1;
            }

        assertTrue(dfsRootEnum.isFlagSet(DcerpcConstants.DCERPC_FIRST_FRAG));
        assertTrue(dfsRootEnum.isFlagSet(DcerpcConstants.DCERPC_LAST_FRAG));

        // Combined flags should equal FIRST_FRAG | LAST_FRAG
        int expectedFlags = DcerpcConstants.DCERPC_FIRST_FRAG | DcerpcConstants.DCERPC_LAST_FRAG;
        assertEquals(expectedFlags, dfsRootEnum.getFlags());
    }

    @Test

import static com.google.common.collect.testing.Helpers.castOrCopyToList;
import static com.google.common.collect.testing.Helpers.entryComparator;
import static com.google.common.collect.testing.Helpers.equal;
import static com.google.common.collect.testing.Helpers.mapEntry;
import static java.util.Arrays.asList;
import static java.util.Collections.sort;

import com.google.common.annotations.GwtCompatible;

   */
  RangeSet<C> subRangeSet(Range<C> view);

  // Modification

  /**
   * Adds the specified range to this {@code RangeSet} (optional operation). That is, for equal
   * range sets a and b, the result of {@code a.add(range)} is that {@code a} will be the minimal
   * range set for which both {@code a.enclosesAll(b)} and {@code a.encloses(range)}.
   *

// Validate all the ListObjects query arguments, returns an APIErrorCode
// if one of the args do not meet the required conditions.
// Special conditions required by MinIO server are as below
//   - delimiter if set should be equal to '/', otherwise the request is rejected.
//   - marker if set should have a common prefix with 'prefix' param, otherwise
//     the request is rejected.

   */
  RangeSet<C> subRangeSet(Range<C> view);

  // Modification

  /**
   * Adds the specified range to this {@code RangeSet} (optional operation). That is, for equal
   * range sets a and b, the result of {@code a.add(range)} is that {@code a} will be the minimal
   * range set for which both {@code a.enclosesAll(b)} and {@code a.encloses(range)}.
   *