JBoss CLI does not handle curly braces ('{' and '}') properly

Issue

• When issuing commands to the JBoss CLI that have values that include curly braces, the CLI does not seem to parse them correctly. For example

/subsystem=web/virtual-server=default-host/rewrite=scontrol/condition=scontrol/:add(flags=NC,pattern=^(3880|3818)$,test=%{SERVER_PORT})

Notice the curly braces in the value of the attribute test. The value of test ends up being % rather than %{SERVER_PORT}