req.Header.Set("X-Amz-Copy-Source-If-Unmodified-Since", testCase.copyUnmodifiedHeader)
		}
		// Add custom metadata.
		for k, v := range testCase.metadata {
			req.Header.Set(k, v)
		}
		if testCase.metadataReplace {
			req.Header.Set("X-Amz-Metadata-Directive", "REPLACE")
		}
		if testCase.metadataCopy {
			req.Header.Set("X-Amz-Metadata-Directive", "COPY")
		}
		if testCase.metadataGarbage {

	versionCmd.Flags().VisitAll(func(flag *pflag.Flag) {
		if flag.Name == "short" {
			err := flag.Value.Set("true")
			if err != nil {
				fmt.Fprintf(os.Stdout, "set flag %q as true failed due to error %v", flag.Name, err)
			}
		}
		if flag.Name == "remote" {
			err := flag.Value.Set("true")
			if err != nil {
				fmt.Fprintf(os.Stdout, "set flag %q as true failed due to error %v", flag.Name, err)
			}
		}
	})
	return versionCmd
}

			},
		},
		// ListObjectsResult-23.
		// Prefix is set to "Asia/India/" in the testCase, and delimiter is not set (testCase 55).
		23: {
			IsTruncated: false,
			Objects: []ObjectInfo{
				{Name: "Asia/India/India-summer-photos-1"},
				{Name: "Asia/India/Karnataka/Bangalore/Koramangala/pics"},
			},
		},

		// ListObjectsResult-24.
		// Prefix is set to "Asia" in the testCase, and delimiter is not set (testCase 56).

	NoncurrentDays          ExpirationDays `xml:"NoncurrentDays,omitempty"`
	NewerNoncurrentVersions int            `xml:"NewerNoncurrentVersions,omitempty"`
	set                     bool
}

// MarshalXML if non-current days not set to non zero value
func (n NoncurrentVersionExpiration) MarshalXML(e *xml.Encoder, start xml.StartElement) error {
	if n.IsNull() {
		return nil
	}

  @Param({"0", "1", "5", "10"})
  int numThreads;

  private final Set<Thread> blockedThreads = new HashSet<>();

  @BeforeExperiment
  void setUp() throws Exception {
    if (state != State.NOT_DONE && (numListeners != 0 || numThreads != 0)) {
      throw new SkipThisScenarioException();
    }
  }

  // This exclusion doesn't exclude the TOMBSTONE objects we set. So 'done' NEW futures will look
  // larger than they are.

  @BeforeExperiment
  void setUp() {
    checkArgument(size > 0, "empty collection not supported");
    Set<Integer> set = new LinkedHashSet<>(size);

    Random random = new Random();
    while (set.size() < size) {
      set.add(random.nextInt());
    }
    List<Integer> list = new ArrayList<>(set);
    inputOrder.arrange(list);
    input = ImmutableList.copyOf(list);
  }

  @Benchmark

                  protected Set<String> create(String[] elements) {
                    Set<String> set = newHashSet(elements);
                    Set<String> other = newHashSet("wz", "xq");
                    set.addAll(other);
                    other.add("pq");
                    return Sets.difference(set, other);
                  }
                })
            .named("set - set")
            .withFeatures(

			if o.pool < len(z.serverPools) && o.set < len(z.serverPools[o.pool].sets) {
				o.debugln("Resuming", o)
				entries, err = z.serverPools[o.pool].sets[o.set].streamMetadataParts(ctx, *o)
				entries.reuse = true // We read from stream and are not sharing results.
				if err == nil {
					return entries, nil
				}
			} else {
				err = fmt.Errorf("invalid pool/set")
				o.pool, o.set = 0, 0
			}
		}

	return ipList
}

func mustGetLocalLoopbacks() (ipList set.StringSet) {
	ipList = set.NewStringSet()
	for _, ip := range mustGetLocalIPs() {
		if ip != nil && ip.IsLoopback() {
			ipList.Add(ip.String())
		}
	}
	return
}

// mustGetLocalIP4 returns IPv4 addresses of localhost.  It panics on error.
func mustGetLocalIP4() (ipList set.StringSet) {
	ipList = set.NewStringSet()
	for _, ip := range mustGetLocalIPs() {

func (set TargetIDSet) add(targetID TargetID) {
	set[targetID] = struct{}{}
}

// Union - returns union with given set as new set.
func (set TargetIDSet) Union(sset TargetIDSet) TargetIDSet {
	nset := set.Clone()

	for k := range sset {
		nset.add(k)
	}

	return nset
}

// Difference - returns difference with given set as new set.
func (set TargetIDSet) Difference(sset TargetIDSet) TargetIDSet {