code: public void free()
      {
          if (m_recDetail != null)
              m_recDetail.free();
          m_recDetail = null;
          if (m_recDetailChildren != null)
              m_recDetailChildren.free();
          m_recDetailChildren = null;
          if (m_recProjectTaskPredecessor != null)
              m_recProjectTaskPredecessor.free();
          m_recProjectTaskPredecessor = null;
          super.free();
      }
docs: Free Method.