throws Throwable
throws IOException
  protected void printRImpl(Env env,                            WriteStream out,                            int depth,                            IdentityHashMap<Value, String> valueSet)    throws Throwable  {    out.print(_cl.getName());    out.print(' ');    out.println("Object");    printDepth(out, 4 * depth);    out.println("(");    for (Map.Entry<String,Value> mapEntry : sortedEntrySet()) {      ObjectExtValue.Entry entry = (ObjectExtValue.Entry) mapEntry;      entry.printRImpl(env, out, depth + 1, valueSet);    }    printDepth(out, 4 * depth);    out.println(")");  }