Read and modify XML file with execute script operator

I'm trying to read an xml file without using the ReadXml operator. I want to treat is as a text file and then extract some values from it. I was wondering if this can be done using the execute script operator. This is part of the java code I'm using with the execute script operator. I don't get any error but it's like it doesn't even start the execution.

String path="/home/myFolder/file.xml";
String content = new Scanner(new File(path)).useDelimiter("\\Z").next();
//some operations on content
return content;

Would you suggest a better way to do this?
Thanks a lot.