[keycloak-user] Tomee 7.0.1 with Keycloak adapter throw NullPointerException

[shortname]

Hello,

I have JAX-RS service secured by Keycloak. It works fine on Wildfly 8-10 
and Glassfish 4. But on Tomee 7.0.1 async methods throws 
NullPointerException (sync works fine). I have created simple project 
for test on tomee 7.0.1 combination sync/async + keycloak and here is 
results:

 1. no keycloak + sync = ok
 2. no keycloak + async = ok
 3. keycloak + sync = ok
 4. keycloak + async = error

Method signature sample:

@GET
public void findAll(@Suspended AsyncResponse response)

Exception stacktrace:

java.lang.NullPointerException
org.apache.cxf.jaxrs.impl.AsyncResponseImpl.initContinuation(AsyncResponseImpl.java:305)
org.apache.cxf.jaxrs.impl.AsyncResponseImpl.<init>(AsyncResponseImpl.java:68)
org.apache.cxf.jaxrs.utils.JAXRSUtils.processParameter(JAXRSUtils.java:816)
org.apache.cxf.jaxrs.utils.JAXRSUtils.processParameters(JAXRSUtils.java:789)
org.apache.cxf.jaxrs.interceptor.JAXRSInInterceptor.processRequest(JAXRSInInterceptor.java:212)
org.apache.cxf.jaxrs.interceptor.JAXRSInInterceptor.handleMessage(JAXRSInInterceptor.java:77)
org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:308)
org.apache.cxf.transport.ChainInitiationObserver.onMessage(ChainInitiationObserver.java:121)
org.apache.cxf.transport.http.AbstractHTTPDestination.invoke(AbstractHTTPDestination.java:254)
org.apache.openejb.server.cxf.rs.CxfRsHttpListener.doInvoke(CxfRsHttpListener.java:251)
org.apache.tomee.webservices.CXFJAXRSFilter.doFilter(CXFJAXRSFilter.java:94)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
org.apache.openejb.server.httpd.EEFilter.doFilter(EEFilter.java:65)

     private void initContinuation() {
         ContinuationProvider provider = 
(ContinuationProvider)this.inMessage.get(ContinuationProvider.class.getName());
*this.cont = provider.getContinuation();*
         this.initialSuspend = true;
     }

How this issue can be resolved? May be this is tomcat adapter bug?

Best regards, Ilia

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