println("public void voidVisit(jjtraveler.Visitor v) {");
println("public void voidVisit(jjtraveler.Visitor any) {");
	private void genVoidVisit() {		println("public void voidVisit(jjtraveler.Visitor v) {");		println(            "if (any instanceof Visitable) {" +            "      ((Visitable) any).accept(this);" +            "    } else {" +            "      throw new jjtraveler.VisitFailure();" +            "    }" +            "  }");		println("}");	}