Description:
When running mvn javadoc:javadoc it fails because of some tags like <code>StringBuilder<code> where the closing <code> is supposed to be </code>

Steps to reproduce:

1. Checkout the master branch
2. Run mvn javadoc:javadoc

Currently, there are only examples for Content-Type/Accept = application/xml in doc. Provide some for Content-Type/Accept = application/json
Plenty of raw examples in the test suite output to take from (that you can get by running maven test in webapp module after changing log level to INFO for logger org.apache.cxf in src/test/resources/authzforce-ce-server/conf/logback.xml):

[TestS

The idea is to use XACML request template to generate the actual XACML request to PDP at runtime. For each access request, the variables used in the template (e.g. user ID, user roles, action ID, resource ID) are resolved at runtime in the context of the request.
For this, you can use one of many Python template engines listed here for instance:
https://wiki.python.org/moin/Templating

For exa