((DataOutputStream) out).writeByte(v);
  }

  /**
   * @deprecated The semantics of {@code writeBytes(String s)} are considered dangerous. Please use
   *     {@link #writeUTF(String s)}, {@link #writeChars(String s)} or another write method instead.
   */
  @Deprecated
  @Override
  public void writeBytes(String s) throws IOException {
    ((DataOutputStream) out).writeBytes(s);
  }

  /**

import java.util.Set;

/**
 * {@link Set} that is case-insensitive.
 *
 * @author higa
 */
public class CaseInsensitiveSet extends AbstractSet<String> implements Set<String>, Serializable {

    static final long serialVersionUID = 0L;

    private transient Map<String, Object> map = new CaseInsensitiveMap<>();

    private static final Object PRESENT = new Object();

    /**
     * Creates a {@link CaseInsensitiveSet}.

     */
    @Rule
    public ExpectedException exception = ExpectedException.none();

    /**
     *
     */
    @Test
    public void testNext() {
        final ArrayIterator<String> itr = new ArrayIterator<String>("a", "b", "c");
        assertThat(itr.next(), equalTo("a"));
        assertThat(itr.next(), equalTo("b"));
        assertThat(itr.next(), equalTo("c"));
    }

    /**
     *
     */

    private static final String NAME_PREFIX = "reqHeaderTest_";
    private static final String API_PATH = "/api/admin/reqheader";
    private static final String LIST_ENDPOINT_SUFFIX = "settings";
    private static final String ITEM_ENDPOINT_SUFFIX = "setting";

    private static final String KEY_PROPERTY = "name";

    @Override
    protected String getNamePrefix() {
        return NAME_PREFIX;
    }

    public BoostDocumentRuleCB acceptPK(String id) {
        assertObjectNotNull("id", id);
        BsBoostDocumentRuleCB cb = this;
        cb.query().docMeta().setId_Equal(id);
        return (BoostDocumentRuleCB) this;
    }

    @Override
    public void acceptPrimaryKeyMap(Map<String, ? extends Object> primaryKeyMap) {
        acceptPK((String) primaryKeyMap.get("_id"));
    }

    public FileAuthenticationCB acceptPK(String id) {
        assertObjectNotNull("id", id);
        BsFileAuthenticationCB cb = this;
        cb.query().docMeta().setId_Equal(id);
        return (FileAuthenticationCB) this;
    }

    @Override
    public void acceptPrimaryKeyMap(Map<String, ? extends Object> primaryKeyMap) {
        acceptPK((String) primaryKeyMap.get("_id"));
    }

    public KeyMatchCB acceptPK(String id) {
        assertObjectNotNull("id", id);
        BsKeyMatchCB cb = this;
        cb.query().docMeta().setId_Equal(id);
        return (KeyMatchCB) this;
    }

    @Override
    public void acceptPrimaryKeyMap(Map<String, ? extends Object> primaryKeyMap) {
        acceptPK((String) primaryKeyMap.get("_id"));
    }

    public LabelTypeCB acceptPK(String id) {
        assertObjectNotNull("id", id);
        BsLabelTypeCB cb = this;
        cb.query().docMeta().setId_Equal(id);
        return (LabelTypeCB) this;
    }

    @Override
    public void acceptPrimaryKeyMap(Map<String, ? extends Object> primaryKeyMap) {
        acceptPK((String) primaryKeyMap.get("_id"));
    }

    public RequestHeaderCB acceptPK(String id) {
        assertObjectNotNull("id", id);
        BsRequestHeaderCB cb = this;
        cb.query().docMeta().setId_Equal(id);
        return (RequestHeaderCB) this;
    }

    @Override
    public void acceptPrimaryKeyMap(Map<String, ? extends Object> primaryKeyMap) {
        acceptPK((String) primaryKeyMap.get("_id"));
    }

    return new TestStringMultisetGenerator() {
      @Override
      protected Multiset<String> create(String[] elements) {
        return LinkedHashMultiset.create(asList(elements));
      }

      @Override
      public List<String> order(List<String> insertionOrder) {
        List<String> order = new ArrayList<>();
        for (String s : insertionOrder) {
          int index = order.indexOf(s);
          if (index == -1) {