import static eu.maveniverse.domtrip.maven.MavenPomElements.Elements.BUILD;
import static eu.maveniverse.domtrip.maven.MavenPomElements.Elements.EXECUTIONS;
import static eu.maveniverse.domtrip.maven.MavenPomElements.Elements.MODEL_VERSION;
import static eu.maveniverse.domtrip.maven.MavenPomElements.Elements.MODULE;
import static eu.maveniverse.domtrip.maven.MavenPomElements.Elements.MODULES;

import static eu.maveniverse.domtrip.maven.MavenPomElements.Elements.PLUGINS;
import static eu.maveniverse.domtrip.maven.MavenPomElements.Elements.PLUGIN_MANAGEMENT;
import static eu.maveniverse.domtrip.maven.MavenPomElements.Elements.PLUGIN_REPOSITORIES;
import static eu.maveniverse.domtrip.maven.MavenPomElements.Elements.PLUGIN_REPOSITORY;
import static eu.maveniverse.domtrip.maven.MavenPomElements.Elements.PROFILE;

import static eu.maveniverse.domtrip.maven.MavenPomElements.Elements.PARENT;
import static eu.maveniverse.domtrip.maven.MavenPomElements.Elements.PLUGIN;
import static eu.maveniverse.domtrip.maven.MavenPomElements.Elements.PLUGINS;
import static eu.maveniverse.domtrip.maven.MavenPomElements.Elements.PROFILE;
import static eu.maveniverse.domtrip.maven.MavenPomElements.Elements.PROFILES;

    public void push(Element element) {
        stack.getFirst().appendChild(element);
        stack.addFirst(element);
    }

    public Element pop() {
        Element element = stack.removeFirst();
        if (emptyPara(element)) {
            element.getParentNode().removeChild(element);
        }
        return element;
    }

    private boolean emptyPara(Element element) {

                return false;
              }
              List<TypeWithDuplicates> elements1 = ImmutableList.copyOf(ms1.elementSet());
              List<TypeWithDuplicates> elements2 = ImmutableList.copyOf(ms2.elementSet());
              for (int i = 0; i < ms1.elementSet().size(); i++) {
                if (!elements1.get(i).fullEquals(elements2.get(i))) {
                  return false;
                }
              }

    @Override
    protected List<String> create(String[] elements) {
      String[] suffix = {"f", "g"};
      String[] all = new String[elements.length + suffix.length];
      arraycopy(elements, 0, all, 0, elements.length);
      arraycopy(suffix, 0, all, elements.length, suffix.length);
      return ImmutableList.copyOf(all).subList(0, elements.length);
    }
  }

  }

  protected void expectMissingKeys(K... elements) {
    for (K element : elements) {
      assertFalse("Should not contain key " + element, getMap().containsKey(element));
    }
  }

  protected void expectMissingValues(V... elements) {
    for (V element : elements) {
      assertFalse("Should not contain value " + element, getMap().containsValue(element));
    }
  }

  /**

      return ImmutableSet.copyOf(elements);
    }
  }

  public static class DegeneratedImmutableSetGenerator extends TestStringSetGenerator {
    @SuppressWarnings("DistinctVarargsChecker") // deliberately testing deduplication
    @Override
    protected Set<String> create(String[] elements) {
      return ImmutableSet.of(elements[0], elements[0]);
    }
  }

// (m[key]) from the map. If m is nil or there is no such element, delete
// is a no-op.
func delete(m map[Type]Type1, key Type)

// The len built-in function returns the length of v, according to its type:
//
//   - Array: the number of elements in v.
//   - Pointer to array: the number of elements in *v (even if v is nil).

     *
     * @param elements the elements to add
     * @return this {@code Builder} object
     * @throws NullPointerException if {@code elements} is null or contains a null element
     */
    @CanIgnoreReturnValue
    @Override
    public Builder<E> add(E... elements) {
      super.add(elements);
      return this;
    }

    /**