1. Please make sure to add
<configuration>
<jsp-configuration development="true"/>
</configuration>
in standalone.xml under <subsystem xmlns="urn:jboss:domain:web:1.1" default-virtual-server="default-host" native="false">
2. Go to jboss-as-7.1.1.Final/modules/org/jboss/as/web/main
Place the jboss-as-web-7.1.1.Final-RECOMPILE.jar in there. You can download from http://www.datafilehost.com/download-2cb9ff04.html
3. Open module.xml (jboss-as-7.1.1.Final/modules/org/jboss/as/web/main) and add the following line
<!--resource-root path="jboss-as-web-7.1.1.Final.jar"/-->
<resource-root path="jboss-as-web-7.1.1.Final-RECOMPILE.jar"/>
4. You are done. Enjoy.