dumpElement ("STREAM MAGIC ");
  protected void readStreamHeader ()    throws IOException, StreamCorruptedException  {//    DEBUG ("STREAM MAGIC ");    if (this.realInputStream.readShort () != STREAM_MAGIC)      throw new StreamCorruptedException ("Invalid stream magic number");//    DEBUG ("STREAM VERSION ");    if (this.realInputStream.readShort () != STREAM_VERSION)      throw new StreamCorruptedException ("Invalid stream version number");  }