name     string
		metadata map[string]string
		keys     []string
		want     map[string]string
	}{
		{
			name:     "1",
			metadata: map[string]string{"content-type": "application/octet-stream", "etag": "de75a98baf2c6aef435b57dd0fc33c86", "x-amz-storage-class": "STANDARD", "md5": "abcde"},
			keys:     []string{"etag", "md5"},
			want:     map[string]string{"content-type": "application/octet-stream", "x-amz-storage-class": "STANDARD"},

type WarmBackend interface {
	Put(ctx context.Context, object string, r io.Reader, length int64) (remoteVersionID, error)
	PutWithMeta(ctx context.Context, object string, r io.Reader, length int64, meta map[string]string) (remoteVersionID, error)
	Get(ctx context.Context, object string, rv remoteVersionID, opts WarmBackendGetOpts) (io.ReadCloser, error)
	Remove(ctx context.Context, object string, rv remoteVersionID) error
	InUse(ctx context.Context) (bool, error)

	return func() ([]dsync.NetLocker, string) {
		lockers := make([]dsync.NetLocker, len(s.erasureLockers[setIndex]))
		copy(lockers, s.erasureLockers[setIndex])
		return lockers, s.erasureLockOwner
	}
}

func (s *erasureSets) GetEndpointStrings(setIndex int) func() []string {
	return func() []string {
		eps := make([]string, s.setDriveCount)

    public static class ApiSystemInfoResponse extends ApiResponse {
        protected List<Map<String, String>> envProps;
        protected List<Map<String, String>> systemProps;
        protected List<Map<String, String>> fessProps;
        protected List<Map<String, String>> bugReportProps;

        public ApiSystemInfoResponse envProps(final List<Map<String, String>> envProps) {
            this.envProps = envProps;
            return this;

    EntryTransformer<String, Integer, String> transformer =
        new EntryTransformer<String, Integer, String>() {
          @Override
          public String transformEntry(String key, Integer value) {
            return key + value;
          }
        };
    ListMultimap<String, String> transformed = Multimaps.transformEntries(multimap, transformer);

    protected static final String LOCATION_HEADER = "Location";

    @Resource
    protected CrawlerContainer crawlerContainer;

    protected Map<String, String> featureMap = new HashMap<>();

    protected Map<String, String> propertyMap = new HashMap<>();

    protected Map<String, String> childUrlRuleMap = new LinkedHashMap<>();

    protected String defaultEncoding;

   */
  static String nullToEmpty(@CheckForNull String string) {
    return (string == null) ? "" : string;
  }

  /**
   * Returns the string if it is not empty, or a null string otherwise.
   *
   * @param string the string to test and possibly return
   * @return {@code string} if it is not empty; {@code null} otherwise
   */
  @CheckForNull
  static String emptyToNull(@CheckForNull String string) {

 */
@Deprecated(since = "4.0.0")
public class DefaultModelProblem implements ModelProblem {

    private final String source;

    private final int lineNumber;

    private final int columnNumber;

    private final String modelId;

    private final String message;

    private final Exception exception;

    private final Severity severity;

    private final Version version;

    /**

        fun foo() {}

        val bar: String = "bar"

        val bool: Boolean = true

        val isBool: Boolean = true

        var bazar = "bazar"

        var bazool: Boolean = true

        var isFool: Boolean = true

        fun String.fooExt() {}

        fun Int.fooExt() {}

        val String.barExt: String
            get() = "bar"

        var Int.bazarExt: String

    String JOB_TEMPLATE_TITLE_FILE = "job.template.title.file";

    /** The key of the configuration. e.g. Data Crawler - {0} */
    String JOB_TEMPLATE_TITLE_DATA = "job.template.title.data";

    /** The key of the configuration. e.g. return container.getComponent("crawlJob").logLevel("info").webConfigIds([{0}] as String[]).fileConfigIds([{1}] as String[]).dataConfigIds([{2}] as String[]).jobExecutor(executor).execute(); */