public void insertNode(int n, int pos)
  {

    if (!m_mutable)
      throw new RuntimeException(XSLMessages.createXPATHMessage(XPATHErrorResources.ER_NODESETDTM_NOT_MUTABLE, null)); //"This NodeSetDTM is not mutable!");

    insertElementAt(n, pos);
  }
public void insertNode ( int n , int pos ) { if ( ! m_mutable ) throw new RuntimeException ( XSLMessages . createXPATHMessage ( XPATHErrorResources . ER_NODESETDTM_NOT_MUTABLE , null ) ) ; insertElementAt ( n , pos ) ; }
Insert a node at a given position.

@param n Node to be added
@param pos Offset at which the node is to be inserted,
with 0 being the first position.
@throws RuntimeException thrown if this NodeSetDTM is not of
a mutable type.