How to save/load java classes in XML format with two code rows

JAXBReaderWriter manages correctly the character set. It uses explicity UTF-8 and not the platform default. So you can use file created to and from several systems and if you use non ASCII characters you can manage strings correctly.

// if your JAXB annotated class is named Configuration you have just to write
JAXBReaderWriter readerWriter = new JAXBReaderWriter(Configuration.class);

// Now you can read it from a file
Configuration configuration = readerWriter.read(file);

// or save it to a stream
readerWriter.write(configuration, outputstream);