Thanks for hint!
I want to maintain single jboss installation as well as single deployment and several versions of myprops-service.xml. So I rejected placing property service into conf/jboss-service.xml.
I tried to define <depends>jboss:type=Service,name=MyAppSystemProperties</depends> dependency to:
- ManagedConnectionFactoryParserDeployer in jboss-jca.deployer
- JBossAppParsingDeployer in ear-deployer-jboss-beans.xml
but no success. What did I wrong ?