From my experience and from what I can see under https://github.com/apache/activemq-artemis/blob/46e622e3d51b546318188839b1ae57e66301251f/artemis-core-client/src/main/java/org/apache/activemq/artemis/core/remoting/impl/netty/NettyConnector.java it is no longer possible to set the trustStore/keyStore with trust-store-path parameter or system property org.apache.activemq.ssl.trustStore if the system property javax.net.ssl.trustStore is already defined.
With JBoss EAP 6.4 this was possible, with EAP 7.3 this no longer works.

Reported by: mschmid

https://access.redhat.com/documentation/en-us/red_hat_jboss_enterprise_application_platform/7.3/html/configuring_messaging/configuring_messaging_security#annotations:d91a6df1-726a-4ef0-a2bd-98cbdaa19f5e