How to use properties files in JBoss EAP?

Issue

• We would like to set some values in our configuration via a properties file. Is this possible in EAP 6 (like in previous JBoss releases)?

• In former JBoss versions we heavily used the "-P" option to pass a system properties file to the server configuration. Does this only work in standalone mode?

• How do I specify multiple properties files at startup?

• Can standalone.xml refer to a custom system property ?
• How to use external path for properties file?

• What is the replacement of jboss-service.xml in Jboss eap 6.3.3 if I want to specify global property ?

• I am using JBoss FSW6.2.1 with EAP 6.4. I have defined resource adapter in my standalone-ha.xml at standalone-ha.xml. Now, in the resource adapter configuration, I am using attribute. I want its value to come from a property file, say sample.properties. My question is:

1. Where should I place this sample.properties file
2. What configuration and steps are required so that attribute will pick up the value from the property file

• We are trying to define a variable in JVM arguements and JBoss keeps complaining unable to resolve . We ended up hardcoding the value . Could you please let us know whats the best way of defining a variable so that we can pass values to variables while starting server instance.