public void addAttr(String attr, Object val) throws NamingException {
//  System.out.println("addAttr " + attr);

    Attribute a = findAttr(attr);

    if (a == null) {
      setAttr(attr, val);
    } else {
      a.add(val);
    }
  }
public void addAttr ( String attr , Object val ) throws NamingException { Attribute a = findAttr ( attr ) ; if ( a == null ) { setAttr ( attr , val ) ; } else { a . add ( val ) ; } }
Add the attribute value to the table. If an attribute already exists
add it to the end of its values.

@param   attr   String attribute name
@param   val    Object value
@throws NamingException