func triggerExpiryAndRepl(ctx context.Context, o listPathOptions, obj metaCacheEntry) (skip bool) {
	versioned := o.Versioning != nil && o.Versioning.Versioned(obj.name)

	// skip latest object from listing only for regular
	// listObjects calls, versioned based listing cannot
	// filter out between versions 'obj' cannot be truncated
	// in such a manner, so look for skipping an object only

        UseIterable<? extends CharSequence> obj) {
      return isSubtype(obj);
    }

    @TestSubtype(suppressGetSupertype = true, suppressGetSubtype = true)
    public UseSerializableIterable<? extends Serializable>
        implicitTypeBoundIsSubtypeOfPartialExplicitTypeBound(UseSerializableIterable<?> obj) {
      return isSubtype(obj);
    }

        exNodes.add(node);
        return this;
    }

    @Override
    public boolean equals(Object obj) {
        if (obj == null) {
            return false;
        }

        if (MetadataGraphNode.class.isAssignableFrom(obj.getClass())) {
            MetadataGraphNode node2 = (MetadataGraphNode) obj;

            if (node2.metadata == null) {
                return metadata == null;
            }

// Creates Object layer setup ( MakeBucket ) and then runs the PutObject benchmark.
func runPutObjectBenchmark(b *testing.B, obj ObjectLayer, objSize int) {
	var err error
	// obtains random bucket name.
	bucket := getRandomBucketName()
	// create bucket.
	err = obj.MakeBucket(b.Context(), bucket, MakeBucketOptions{})
	if err != nil {
		b.Fatal(err)
	}

      return true;
    }

    @Override
    public boolean equals(@Nullable Object obj) {
      if (obj == this) {
        return true;
      }
      if (!(obj instanceof EndpointPair)) {
        return false;
      }

      EndpointPair<?> other = (EndpointPair<?>) obj;
      if (isOrdered() != other.isOrdered()) {
        return false;
      }

    }

    @Override
    public int hashCode() {
      return identity().hashCode();
    }

    @Override
    public boolean equals(@Nullable Object obj) {
      if (obj instanceof DummyHandler) {
        DummyHandler that = (DummyHandler) obj;
        return identity().equals(that.identity());
      } else {
        return false;
      }
    }

    private DummyProxy identity() {

}

func testAPIDeleteObjectHandler(obj ObjectLayer, instanceType, bucketName string, apiRouter http.Handler,
	credentials auth.Credentials, t *testing.T,
) {
	var err error
	objectName := "test-object"
	// Object used for anonymous API request test.
	anonObjectName := "test-anon-obj"
	// set of byte data for PutObject.

    private int getDceReferent(final Object obj) {
        Entry e;

        if (referents == null) {
            referents = new HashMap();
            referent = 1;
        }

        e = (Entry) referents.get(obj);
        if (e == null) {
            e = new Entry();
            e.referent = referent++;
            e.obj = obj;
            referents.put(obj, e);
        }

		expectedError error
	}{
		// Cases with invalid bucket name.
		0: {bucketName: ".test", objName: "obj", inputData: []byte(""), expectedError: BucketNameInvalid{Bucket: ".test"}},
		1: {bucketName: "------", objName: "obj", inputData: []byte(""), expectedError: BucketNameInvalid{Bucket: "------"}},
		2: {
			bucketName: "$this-is-not-valid-too", objName: "obj", inputData: []byte(""),
			expectedError: BucketNameInvalid{Bucket: "$this-is-not-valid-too"},
		},

    final int hash;

    Element(int hash) {
      this.hash = hash;
    }

    @Override
    public boolean equals(@Nullable Object obj) {
      return this == obj || (obj instanceof Element && ((Element) obj).hash == hash);
    }

    @Override
    public int hashCode() {
      return hash;
    }

    @Override
    public int compareTo(Element that) {