code: public void setItem(java.util.Collection<Stage> item) {
          if (item == null) {
              this.item = null;
              return;
          }
  
          this.item = new java.util.ArrayList<Stage>(item);
      }
docs: <p>
  The current page of elements from this collection.
  </p>
  
  @param item
  The current page of elements from this collection.