@Override
  @NotNull
  public Collection<StructureViewTreeElement> getChildrenBase() {
    PsiField field = getField();
    if (field instanceof PsiEnumConstant) {
      PsiEnumConstantInitializer initializingClass = ((PsiEnumConstant)field).getInitializingClass();
      if (initializingClass != null) {
        return JavaClassTreeElement.getClassChildren(initializingClass);
      }
    }
    return Collections.emptyList();
  }
@Override
  @NotNull
  public Collection<StructureViewTreeElement> getChildrenBase()