protected static String toClassName(String IDL)
protected static String toClassName(String prefix, String IDL)
  protected static String toClassName(String IDL)  {    String s = IDL;    int a = s.indexOf(':') + 1;    int b = s.lastIndexOf(':');    s = IDL.substring(a, b);    if (s.startsWith(OMG_PREFIX))      s = JAVA_PREFIX + s.substring(OMG_PREFIX.length());    return s.replace('/', '.');  }