@Override
  @ParametricNullness
  public abstract K getKey();

  @Override
  @ParametricNullness
  public abstract V getValue();

  @Override
  @ParametricNullness
  public V setValue(@ParametricNullness V value) {
    throw new UnsupportedOperationException();
  }

  @Override
  public boolean equals(@Nullable Object object) {
    if (object instanceof Entry) {

    /** Clears the reference queues used by this segment, if any. */
    void maybeClearReferenceQueues() {}

    /** Sets the value of the given {@code entry}. */
    void setValue(E entry, V value) {
      this.map.entryHelper.setValue(self(), entry, value);
    }

    /** Returns a copy of the given {@code entry}. */
    @Nullable E copyEntry(E original, E newNext) {

    }

    @Override
    public boolean isCollection() {
        return false;
    }

    @Override
    public boolean isLeaf() {
        return true;
    }

    @Override
    public void setValue(Object value) {
        throw new UnsupportedOperationException();
    }

                "key");
        setupEpg(_epgMap, et -> ((CrawlingInfoParam) et).getValue(), (et, vl) -> ((CrawlingInfoParam) et).setValue(DfTypeUtil.toString(vl)),
                "value");
    }

    @Override
    public PropertyGateway findPropertyGateway(final String prop) {
        return doFindEpg(_epgMap, prop);
    }

                      return new Entry<String, String>() {

                        @Override
                        public String setValue(String value) {
                          checkNotNull(value);
                          return next.setValue(value);
                        }

                        @Override
                        public String getValue() {

                String org, val;
                // Content
                org = dom.getValue();
                val = interpolate(org);
                if (org != val) {
                    dom.setValue(val);
                }
                // Attributes
                for (String attr : dom.getAttributeNames()) {
                    org = dom.getAttribute(attr);
                    val = interpolate(org);

    public boolean isCollection() {
        return false;
    }

    @Override
    public boolean isLeaf() {
        return node.children().isEmpty();
    }

    @Override
    public void setValue(Object value) {
        throw new UnsupportedOperationException();
    }

    @Override
    public NodeIterator childIterator(NodeTest test, boolean reverse, NodePointer startWith) {

    }

    @Override
    @ParametricNullness
    public K setValue(@ParametricNullness K value) {
      K obverseKey = value;
      updateIndex();
      if (index == ABSENT) {
        obverse.putInverse(obverseValue, obverseKey, false);
        return unsafeNull(); // see EntryForKey.setValue()
      }
      K oldObverseKey =

    }

    public File getBasedir() {
        return (pomFile != null) ? pomFile.getParentFile() : null;
    }

    public void setValueOnModel(String expression, Object value) {
        context.setValue(expression, value);
    }

    public Iterator<?> getIteratorForXPathExpression(String expression) {
        return context.iterate(expression);
    }

    public boolean containsXPathExpression(String expression) {

                (et, vl) -> ((RequestHeader) et).setUpdatedTime(DfTypeUtil.toLong(vl)), "updatedTime");
        setupEpg(_epgMap, et -> ((RequestHeader) et).getValue(), (et, vl) -> ((RequestHeader) et).setValue(DfTypeUtil.toString(vl)),
                "value");
        setupEpg(_epgMap, et -> ((RequestHeader) et).getWebConfigId(),
                (et, vl) -> ((RequestHeader) et).setWebConfigId(DfTypeUtil.toString(vl)), "webConfigId");