Web administration console does not handle values set with expressions

In case of using expression in standalone.xml then web admin console does not show the evaluated expression and instead of it 0 is shown. In other cases you can see error message of the web admin console saying "Failed to parse response".

As I was testing the behavior of web administration console just on several places I can't talk about behaving of all subsystem.
This was hit on ejb subsystem.

You can try to set following tag like this

<strict-max-pool name="slsb-strict-max-pool" max-pool-size="${some.var:20}" instance-acquisition-timeout="${some.other.var}" instance-acquisition-timeout-unit="MINUTES"/>

In case of max-pool-size you'll see value 0 instead of 20 in the console. And nevertheless that you run the server with -Dsome.other.var=5 you'll see the parsing error because of the instance-acquisition-timeout attribute being set with expression.