Description of problem:
According to this [1], there exists 'NC' flag for rewrite rule in the Web subsystem for virtual host. However this does not work unless I use 'nocase' instead of 'NC' as a flag.

Version-Release number of selected component (if applicable):
EAP 6.4.7
JBoss Web Services - Stack CXF Server 4.3.6.Final-redhat-1

How reproducible:
Always

Steps to Reproduce:
1. start server and connect to cli
2. set-up rewrite rule: /subsystem=web/virtual-server=default-host/rewrite=myrewrite:add(pattern="/hello",substitution="/",flags="NC")
3. perform reload: reload
4. try to access 'http://localhost:8080/HELLO' in your web browser

Actual results:
Access to 'http://localhost:8080/HELLO' fails with 404 status.

Expected results:
Access to 'http://localhost:8080/HELLO' should be successful with default EAP welcome page.

Additional info:
When I use 'nocase' instead of 'NC' this feature works as expected.

[1] http://jbossweb.jboss.org/modules/rewrite.html