System properties are not resolved in jboss eap 6.2

[bangalore09]

We are setting system properties via standalone.xml as -Dproperty=value option and we are trying to refer in xml as ${systemproperty}, which doesn't resolve at runtime.

The parameters are seen from management console under the section Profile-->General Configuration-->System Properties

These variable are accessible from java code as System.getProperty("property").

Any help is highly appreciable.

Thanks & Regards

[johnlfox]

Not all XML values can be set using the ${property} syntax.  Use the ':read-resource-description' command from the CLI to interrogate the XML resource you are changing and verify that '"expressions-allowed" => true' is set for that attribute.  If it isn't, you can't use an expression. If it is set, post a little more of your XML so we can see what attribute you are trying to use this on.

[wdfink]

If you use the interactive CLI shell command you can check each attribute whether it supports such properties use :read-resource-description and look for the expression-allowed flag

[bangalore09]

[standalone@localhost:9999 /] /system-property=JAAS:read-resource-description

{

    "outcome" => "success",

    "result" => {

        "description" => "A system property to set on the server.",

        "access-constraints" => {"sensitive" => {"system-property" => {"type" =>

"core"}}},

        "attributes" => {"value" => {

            "type" => STRING,

            "description" => "The value of the system property.",

            "expressions-allowed" => true,

            "nillable" => true,

            "min-length" => 0L,

            "max-length" => 2147483647L,

            "access-type" => "read-write",

            "storage" => "configuration",

            "restart-required" => "no-services"

        }},

        "operations" => undefined,

        "children" => {}

    }

}

expressions-allowed present, but still not picking the value off ${JAAS}.

[ctomc]

not on system property definition on place where you want to use it...

[bangalore09]

I added parameters in standalone.bat as java parameters (-Dparam=value). And I am trying to use them in my ear file (application.xml) to set web context.

After looking at forum, I added those params through jboss-cli tool under the sub-system system-parameters.

I don't know in which sub-system to check or modify to update "expressions-allowed" tag.

Please help me.

[ricardinho_rio]

Has anybody had any good solution on that? I am facing the same problem.

[ctomc]

so you want to use expression on your application description files (application.xml, web.xml,...) and annotations.

for that you need to enable such capability in ee subsystem

set

<spec-descriptor-property-replacement>true</spec-descriptor-property-replacement>

<jboss-descriptor-property-replacement>true</jboss-descriptor-property-replacement>

if you want also annotation replacement also enable annotation-property-replacement

but for the last one i am not sure in what version is was added, i think it was 6.3 if not later.

[rafachies]

Do not pass this as a script parameter. Create the property through the Web Console in Configuration -> System Property.

Second options is though CLI: /system-property=my.key:add(value=myvalue)

Third option is editing the standlone.xml, including in the end of the file, before close </server>

    <system-properties>

        <property name="my.key" value="myvalue"/>

    </system-properties>