JBoss EAP 6.4 and 7.0 fails to starts up when resolving an expression with the default value containing a '$' at the end

Solution Verified - Updated

Environment

  • Red Hat JBoss Enterprise Application Platform (EAP) 6.4.x, 7.0.x

Issue

JBoss EAP 6.4 and 7.0 fails to starts up when resolving an expression with the default value containing a '$' at the end.

For example, when I configured the following system property in standalone.xml:

<system-properties>
    <property name="regex_prop_test" value="${my.regex.test:^default$}"/>
</system-properties>

Then JBoss failed to start-up with the following ERROR message:

ERROR [org.jboss.as.controller.management-operation] (Controller Boot Thread) JBAS014612: Operation ("add") failed - address: ([("system-property" => "regex_prop_test")]) - failure description: "JBAS013494: Incomplete expression: ${my.regex.test:^default$}"

Resolution

This is a bug reported and fixed in upstram JIRA Content from issues.jboss.org is not included.WFCORE-1399. The following buzilla and JIRAs were created to backport the fix. This will be fixed in future releases:

You can workaround this issue by using EAP 6.4 new feature "nested expression" like the following:

<system-properties>
    <property name="default_regex" value="^default$"/>
    <property name="regex_prop_test" value="${my.regex.test:${default_regex}}"/>
</system-properties>
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