code: public void setSymbolMapsDirectory(String symbolMapsDir) {
  		if (deobfuscator == null) {
  			deobfuscator = new StackTraceDeobfuscator(symbolMapsDir);
  		} else {
  			deobfuscator.setSymbolMapsDirectory(symbolMapsDir);
  		}
  	}
docs: By default, this service does not do any deobfuscation. In order to do
  server side deobfuscation, you must copy the symbolMaps files to a
  directory visible to the server and set the directory using this method.
  @param symbolMapsDir