Except the Java security restrictions described
here, I forgot to mention another blocking issue (since JRE 1.7.0_40) which only allows to put property in resources when starting with "java." or "jnlp." in jnlp file. This issue has been fixed since Weasis 1.1.2 and in recent versions of weasis-pacs-connector. So, it concerns only other implementations that build the jnlp file (also the old dcm4chee-web implementation), see the workaround in the updated documentation on
how to build jnlp.