I had a quick play around and I can confirm sessions are working for me. I'm running CXF 3.1.5 in Jboss Fuse. Have you checked that the client you're using has sessions enabled?
The code that I used is below: == Spring config == <?xml version="1.0" encoding="UTF-8"?> <beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:httpj=" http://cxf.apache.org/transports/http-jetty/configuration" xmlns:jaxrs="http://cxf.apache.org/jaxrs" xmlns="http://www.springframework.org/schema/beans" xmlns:http="http://cxf.apache.org/transports/http/configuration" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://cxf.apache.org/transports/http/configuration http://cxf.apache.org/schemas/configuration/http-conf.xsd http://cxf.apache.org/jaxrs http://cxf.apache.org/schemas/jaxrs.xsd http://cxf.apache.org/transports/http-jetty/configuration http://cxf.apache.org/schemas/configuration/http-jetty.xsd"> <import resource="classpath:META-INF/cxf/cxf.xml" /> <httpj:engine-factory bus="cxf" id="my-engine"> <httpj:engine port="8686"> <httpj:sessionSupport>true</httpj:sessionSupport> </httpj:engine> </httpj:engine-factory> <bean id="testBean" class="testing.Service" /> <jaxrs:server id="cxfJaxrsServer" address="http://0.0.0.0:8686/test" depends-on="my-engine"> <jaxrs:providers> <bean class="com.fasterxml.jackson.jaxrs.json.JacksonJsonProvider" /> </jaxrs:providers> <jaxrs:serviceBeans> <ref bean="customerBean" /> </jaxrs:serviceBeans> </jaxrs:server> </beans> == Sample service == @Path("/service") public class Service { @Context private HttpServletRequest httpRequest; @Path("/set") @GET @Consumes(MediaType.TEXT_PLAIN) @Produces(MediaType.TEXT_PLAIN) public String test() { httpRequest.getSession().setAttribute("test", "test value"); return "bundle2"; } @Path("/get") @GET @Consumes(MediaType.TEXT_PLAIN) @Produces(MediaType.TEXT_PLAIN) public String test2() { return (String)httpRequest.getSession().getAttribute("test"); } } == CXF dependencies == cxf-rt-frontend-jaxrs, cxf-rt-transports-http-jetty, cxf-rt-rs-extension-providers Cheers Andrew
