Unable to configure indexes using the Wildfly 8.1 Subsystem

<subsystem xmlns="urn:jboss:domain:modeshape:2.0">  
  <repository name="test-repo" cache-name="test-repo" cache-container="modeshape" security-domain="test-security">  
  <workspaces>  
  <workspace name="default">  
  <initial-content>  
                            /apps/test/config/initial-test-content.xml  
                        </initial-content>  
  </workspace>  
  </workspaces>  
  <node-types>  
  <node-type>/apps/test/config/stock/schema.cnd</node-type>  
  </node-types>  
  <index-providers>  
  <index-provider name="stock" classname="org.modeshape.jcr.index.local.LocalIndexProvider" module="org.modeshape" path="/apps/test/indexes"/>  
  </index-providers>  
  <indexes>  
  <index name="assetName" provider-name="stock" kind="value" node-type="asset:stock" columns="asset:name(STRING)"/>  
  </indexes>  
  </repository>  
</subsystem>

Message: JBAS014789: Unexpected element '{urn:jboss:domain:jaxrs:1.0}subsystem' encountered
  at org.jboss.as.controller.parsing.ParseUtils.unexpectedElement(ParseUtils.java:85) [wildfly-controller-8.1.0.Final.jar:8.1.0.Final]
  at org.jboss.as.controller.parsing.ParseUtils.nextElement(ParseUtils.java:76) [wildfly-controller-8.1.0.Final.jar:8.1.0.Final]
  at org.jboss.as.server.parsing.StandaloneXml.readServerElement_1_4(StandaloneXml.java:459) [wildfly-server-8.1.0.Final.jar:8.1.0.Final]
  at org.jboss.as.server.parsing.StandaloneXml.readElement(StandaloneXml.java:145) [wildfly-server-8.1.0.Final.jar:8.1.0.Final]
  at org.jboss.as.server.parsing.StandaloneXml.readElement(StandaloneXml.java:107) [wildfly-server-8.1.0.Final.jar:8.1.0.Final]
  at org.jboss.staxmapper.XMLMapperImpl.processNested(XMLMapperImpl.java:110) [staxmapper-1.1.0.Final.jar:1.1.0.Final]
  at org.jboss.staxmapper.XMLMapperImpl.parseDocument(XMLMapperImpl.java:69) [staxmapper-1.1.0.Final.jar:1.1.0.Final]
  at org.jboss.as.controller.persistence.XmlConfigurationPersister.load(XmlConfigurationPersister.java:104) [wildfly-controller-8.1.0.Final.jar:8.1.0.Final]
  ... 3 more