@Override
  public void addEntryPoint(@NotNull RefElement newEntryPoint, boolean isPersistent) {
    if (!newEntryPoint.isValid()) return;
    if (isPersistent) {
      if (newEntryPoint instanceof RefMethod && ((RefMethod) newEntryPoint).isConstructor()
          || newEntryPoint instanceof RefClass) {
        final ClassPattern classPattern = new ClassPattern();
        classPattern.pattern = new SmartRefElementPointerImpl(newEntryPoint, true).getFQName();
        getPatterns().add(classPattern);

        final EntryPointsManager entryPointsManager =
            getInstance(newEntryPoint.getElement().getProject());
        if (this != entryPointsManager) {
          entryPointsManager.addEntryPoint(newEntryPoint, true);
        }

        return;
      }
    }

    if (newEntryPoint instanceof RefClass) {
      RefClass refClass = (RefClass) newEntryPoint;

      if (refClass.isAnonymous()) {
        // Anonymous class cannot be an entry point.
        return;
      }

      List<RefMethod> refConstructors = refClass.getConstructors();
      if (refConstructors.size() == 1) {
        addEntryPoint(refConstructors.get(0), isPersistent);
      } else if (refConstructors.size() > 1) {
        // Many constructors here. Need to ask user which ones are used
        for (RefMethod refConstructor : refConstructors) {
          addEntryPoint(refConstructor, isPersistent);
        }
      }
    }

    if (!isPersistent) {
      myTemporaryEntryPoints.add(newEntryPoint);
      ((RefElementImpl) newEntryPoint).setEntry(true);
    } else {
      if (myPersistentEntryPoints.get(newEntryPoint.getExternalName()) == null) {
        final SmartRefElementPointerImpl entry =
            new SmartRefElementPointerImpl(newEntryPoint, true);
        myPersistentEntryPoints.put(entry.getFQName(), entry);
        ((RefElementImpl) newEntryPoint).setEntry(true);
        ((RefElementImpl) newEntryPoint).setPermanentEntry(true);
        if (entry.isPersistent()) { // do save entry points
          final EntryPointsManager entryPointsManager =
              getInstance(newEntryPoint.getElement().getProject());
          if (this != entryPointsManager) {
            entryPointsManager.addEntryPoint(newEntryPoint, true);
          }
        }
      }
    }
  }
  public RefElement[] getEntryPoints() {
    validateEntryPoints();
    List<RefElement> entries = new ArrayList<RefElement>();
    Collection<SmartRefElementPointer> collection = myPersistentEntryPoints.values();
    for (SmartRefElementPointer refElementPointer : collection) {
      final RefEntity elt = refElementPointer.getRefElement();
      if (elt instanceof RefElement) {
        entries.add((RefElement) elt);
      }
    }
    entries.addAll(myTemporaryEntryPoints);

    return entries.toArray(new RefElement[entries.size()]);
  }