code: @Override
      public Set<PluralAttribute<X, ?, ?>> getDeclaredPluralAttributes()
      {
          Set<PluralAttribute<X, ?, ?>> declaredAttribSet = null;
  
          if (declaredPluralAttributes != null)
          {
              declaredAttribSet = new HashSet<PluralAttribute<X, ?, ?>>();
              declaredAttribSet.addAll(declaredPluralAttributes.values());
          }
          return declaredAttribSet;
      }
docs: /*
  (non-Javadoc)
  
  @see
  javax.persistence.metamodel.ManagedType#getDeclaredPluralAttributes()