Avoid duplicate Strings in Java

Question

I want to ask a question about avoiding String duplicates in Java.

The context is: an XML with tags and attributes like this one:

Answer 1

An alternative solution:

You could try is to define an restriction on your @id attribute (if your domain model would allow such a thing). If JibX is as intelligent as JAXB or other XML-Java mapping standards, then this could be mapped as a Java enum with constant literals, which can be reused heavily.

I would try that for the ID value, since it kinda looks like an enumeration to me...