The Java Standard Tag Library c:import tag doesn't work properly in JBoss 6. According to the documentation it is supposed to assign the contents of the URL to a variable when the var attribute is supplied. This doesn't happen, instead it dumps the output directly to the page as if no var attribute was supplied:
<c:import url="/REST/services" var="services" />
The above snippet doesn't work properly, it is supposed to assign JSON markup to a variable but instead it appears in the web-browser jumbled-in with the rest of the web page render.