JBossWeb RewriteValve throws IllegalArgumentException when using 'CO=NAME:VAL:domain[:lifetime[:path]]' flag in EAP 6

Issue

When configuring the following RewriteValve setting using the flag 'CO=NAME:VAL:domain[:lifetime[:path]]':

<subsystem xmlns="urn:jboss:domain:web:2.1" default-virtual-server="default-host" native="false">
    <connector name="http" protocol="HTTP/1.1" scheme="http" socket-binding="http"/>
    <virtual-server name="default-host" enable-welcome-root="true">
        <alias name="localhost"/>
        <alias name="example.com"/>
        <rewrite name="rule-1" pattern="^/(.*)$" substitution="-" flags="CO=foo:bar:.example.com:60:/example">
            <condition name="condition-0" test="%{REQUEST_URI}" pattern=".*/example/.*"/>
        </rewrite>
    </virtual-server>
</subsystem>

JBossWeb RewriteValve throws the following IllegalArgumentException at JBoss EAP start-up:

ERROR [org.jboss.msc.service.fail] (MSC service thread 1-2) MSC000001: Failed to start service jboss.web.host.default-host: org.jboss.msc.service.StartException in service jboss.web.host.default-host: java.lang.IllegalArgumentException: JBWEB007005: Error reading rewrite flags in line RewriteRule ^/(.*)$ - [CO=foo:bar:.example.com:60:/example] as CO=foo:bar:.example.com:60:/example
    at org.jboss.as.web.WebVirtualHostService.createRewriteValve(WebVirtualHostService.java:225)
    at org.jboss.as.web.WebVirtualHostService.start(WebVirtualHostService.java:88)
    at org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:1980) [jboss-msc-1.1.5.Final-redhat-1.jar:1.1.5.Final-redhat-1]
    at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1913) [jboss-msc-1.1.5.Final-redhat-1.jar:1.1.5.Final-redhat-1]
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [rt.jar:1.7.0_67]
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [rt.jar:1.7.0_67]
    at java.lang.Thread.run(Thread.java:745) [rt.jar:1.7.0_67]
Caused by: java.lang.IllegalArgumentException: JBWEB007005: Error reading rewrite flags in line RewriteRule ^/(.*)$ - [CO=foo:bar:.example.com:60:/example] as CO=foo:bar:.example.com:60:/example
    at org.jboss.web.rewrite.RewriteValve.parseRuleFlag(RewriteValve.java:718)
    at org.jboss.web.rewrite.RewriteValve.parse(RewriteValve.java:565)
    at org.jboss.web.rewrite.RewriteValve.parse(RewriteValve.java:208)
    at org.jboss.web.rewrite.RewriteValve.setConfiguration(RewriteValve.java:184)
    at org.jboss.as.web.WebVirtualHostService.createRewriteValve(WebVirtualHostService.java:223)
    ... 6 more