Radim Hanus [http://community.jboss.org/people/rhanus] created the discussion "Re: The replacement of system properties in *-ds.xml is done only for elements of string value type" To view the discussion, visit: http://community.jboss.org/message/578350#578350 -------------------------------------------------------------- Hi Ales Thanks for answer! I've rewritten properties-service.xml to properties-jboss-bean.xml to be able to define supply: <bean name="SystemProperties" class="org.jboss.varia.property.SystemPropertiesService">                  <annotation>@org.jboss.aop.microcontainer.aspects.jmx.JMX(name="jboss:type=Properties,name=MyAppSystemProperties",exposedInterface=org.jboss.varia.property.SystemPropertiesServiceMBean.class</annotation>                  <property name="properties" replace="false">                        istep.db.maxPoolSize=150           istep.db.idleTimeout=60      </property>      <supply>SystemProperties</supply> </bean> and I placed demand into ear CL deployer: <bean name="EARClassLoaderDeployer" class="org.jboss.deployment.EarClassLoaderDeployer">      <!-- A flag indicating if ear deployments should have their own scoped         class loader to isolate their classes from other deployments.      -->      <property name="isolated">false</property>      <demand>SystemProperties</demand> </bean> but JAXB started to unmarshal ds descriptor before "configured" of system properties may be I'm completely wrong but as I had some time during christmas to dive into source codes I'm really curious about solution :-) and it really works !!! -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/578350#578350] Start a new discussion in IronJacamar at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&...]