JAX-WS client invocation time keeps increasing over life of JVM in EAP 6

Issue

JAX-WS client invocations keep increasing over the life of the JVM. Some notes about the client:

• The Service object is cached between invocations
• To ensure the application's custom JAX-WS handlers are set on the port, ((BindingProvider)port).getBinding().setHandlerChain(handlerChain) is invoked before every invocation.

• The handler chain can also just be set once to cause the issue:

  final Service service = Service.create(wsdl, ns);
  service.setHandlerResolver(new HandlerResolver() {
    public List<Handler> getHandlerChain(PortInfo info) {
      log.warn("Retrieving custom handler chain");
      return handlerChain;
    }
  });
  

• There are lots of stack traces like this in a tread dump with the issue, showing high CPU in org.apache.cxf.phase.PhaseInterceptorChain.add:

  "http-/10.150.85.229:8080-74" daemon prio=10 tid=0x00007f9fe0043800 nid=0x7a76 runnable [0x00007fa06f4dc000]
     java.lang.Thread.State: RUNNABLE
    at org.apache.cxf.phase.PhaseInterceptorChain.insertInterceptor(PhaseInterceptorChain.java:494)
    at org.apache.cxf.phase.PhaseInterceptorChain.add(PhaseInterceptorChain.java:208)
    at org.apache.cxf.phase.PhaseInterceptorChain.add(PhaseInterceptorChain.java:185)
    at org.apache.cxf.phase.PhaseInterceptorChain.add(PhaseInterceptorChain.java:176)
    at org.apache.cxf.phase.PhaseChainCache.getChain(PhaseChainCache.java:93)
    at org.apache.cxf.phase.PhaseChainCache.get(PhaseChainCache.java:77)
    at org.apache.cxf.endpoint.ClientImpl.onMessage(ClientImpl.java:744)