core:
import edu.neu.ccs.demeter.dj.*;
import java.lang.*;
import java.util.*;

import edu.neu.ccs.demeter.*;
add: class MyClassGraph extends ClassGraph {
  public constructor MyClassGraph() {{
    super();
  }}
{{
    public MyClassGraph(TraversalGraph tg) {
      super(tg);
      ClassGraph cg = (ClassGraph) tg.getClassGraph();
      java.util.Iterator edges = tg.getEdgeSets().iterator();
      while (edges.hasNext()) {
	edu.neu.ccs.demeter.aplib.EdgeI edge
	  = ((TraversalGraph.EdgeSet) edges.next()).getEdge();
	Class cl = cg.getNodeClass(edge.getSource());
	namesClasses.put(cl.getName(), cl);
      }
    }
    public MyClassGraph(ClassGraph cg, String s) {
      this(new TraversalGraph(s, cg));
    }
  }}
{{  void universal_trv0_bef(UniversalVisitor _v_) {
    ((UniversalVisitor) _v_).before(this);
  }
}}
{{  void universal_trv0_aft(UniversalVisitor _v_) {
    ((UniversalVisitor) _v_).after(this);
  }
}}
{{  void universal_trv0(UniversalVisitor _v_) {
    universal_trv0_bef(_v_);
    universal_trv0_aft(_v_);
  }
}}
}