Dear community, I'm running CIBA flow with PUSH mode. I have configure CIBA by following [the documentation ](https://gluu.org/docs/gluu-server/4.4/admin-guide/ciba/). The detail of the **json configuration file about openid connect** got from */.well-known/openid-configuration* and **the Cliend Configuration** can be found in the link below. [LINK TO CLIENT CONFIGURATION & OPENID CONNECT CONFIGURATION JSON FILE](https://drive.google.com/drive/folders/15xjwITX6JR9-9y-LfI59shbvLNBuRfC9?usp=sharing) I also configured Firebase FCM to which Gluu server will send the notification for user. **Step 1:** Running authentication request via: https://ciba.example.com/oxauth/restv1/bc-authorize As a response, I get *auth_req_id* and *expires_in parameters*. In addition, Gluu also sends a notification to Firebase, which forwards the notifcation to the user device. The notification is like this: ``` {"from":"523390854537","priority":"normal","notification":{"title":"oxAuth Authentication Request","body":"Client Initiated Backchannel Authentication (CIBA)","click_action":"https://hoanhoangpc/oxauth/restv1/authorize?auth_req_id=ed6c67110e81d5b0cc7e593e39401cbda06ea6924749326e&scope=openid+profile&response_type=id_token&redirect_uri=http%3A%2F%2Flocalhost%3A8090%2Fcallback&state=c62a37d7-46eb-4e2d-9138-01da2ee5bc98&nonce=1035a83e-96df-4dee-8288-e304d12a8ced&prompt=consent&client_id=99e9a301-bdc4-44a7-bcde-c815be61ad95"},"fcmMessageId":"e39fd0b6-9a83-4b2f-9b9f-15ddfeb83c1b"} ``` **Step2:** I manually copy the *click_action* link and paste to browser. However, after hitting Enter, I got an error related to *unsupported_response_type* ``` { "error_description": "The authorization server does not support obtaining an access token using this method.", "state": "c62a37d7-46eb-4e2d-9138-01da2ee5bc98", "error": "unsupported_response_type" } ``` Given that I already enabled id_token in the Client configuration, the error seems weird. I also noticed that during the process of sending the notification to Firebase FCM, Gluu can succesfully send the notifcation but failed to parse the response. You can see it in the following, which is taken from oxauth.log. It seems that even though Gluu Server failed to parse the JSON response, it still prints *success* result as the evaluation is based on the http status. It seems to me that this bug does not impact the rest of the authentication process. ``` 2022-05-17 15:16:24,271 INFO [qtp966739377-13] [org.gluu.oxauth.auth.Authenticator] (Authenticator.java:278) - Authentication success for Client: '99e9a301-bdc4-44a7-bcde-c815be61ad95' 2022-05-17 15:16:24,750 ERROR [qtp966739377-13] [gluu.oxauth.client.ciba.fcm.FirebaseCloudMessagingResponse] (FirebaseCloudMessagingResponse.java:73) - A JSONObject text must begin with '{' at 2 [character 3 line 1] org.json.JSONException: A JSONObject text must begin with '{' at 2 [character 3 line 1] at org.json.JSONTokener.syntaxError(JSONTokener.java:507) ~[json-20210307.jar:?] at org.json.JSONObject.<init>(JSONObject.java:222) ~[json-20210307.jar:?] at org.json.JSONObject.<init>(JSONObject.java:406) ~[json-20210307.jar:?] at org.gluu.oxauth.client.ciba.fcm.FirebaseCloudMessagingResponse.injectDataFromJson(FirebaseCloudMessagingResponse.java:48) ~[oxauth-client-4.4.0.Final.jar:?] at org.gluu.oxauth.client.ciba.fcm.FirebaseCloudMessagingResponse.<init>(FirebaseCloudMessagingResponse.java:42) ~[oxauth-client-4.4.0.Final.jar:?] at org.gluu.oxauth.client.ciba.fcm.FirebaseCloudMessagingClient._exec(FirebaseCloudMessagingClient.java:64) ~[oxauth-client-4.4.0.Final.jar:?] at org.gluu.oxauth.client.ciba.fcm.FirebaseCloudMessagingClient.exec(FirebaseCloudMessagingClient.java:43) ~[oxauth-client-4.4.0.Final.jar:?] at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?] at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:566) ~[?:?] at org.python.core.PyReflectedFunction.__call__(PyReflectedFunction.java:190) ~[jython-standalone-2.7.3.jar:2.7.3-SNAPSHOT] at org.python.core.PyReflectedFunction.__call__(PyReflectedFunction.java:208) ~[jython-standalone-2.7.3.jar:2.7.3-SNAPSHOT] at org.python.core.PyObject.__call__(PyObject.java:461) ~[jython-standalone-2.7.3.jar:2.7.3-SNAPSHOT] at org.python.core.PyObject.__call__(PyObject.java:465) ~[jython-standalone-2.7.3.jar:2.7.3-SNAPSHOT] at org.python.core.PyMethod.__call__(PyMethod.java:126) ~[jython-standalone-2.7.3.jar:2.7.3-SNAPSHOT] at org.python.pycode._pyx0.notifyEndUser$6(firebase_ciba_end_user_notification.py:68) ~[?:?] at org.python.pycode._pyx0.call_function(firebase_ciba_end_user_notification.py) ~[?:?] at org.python.core.PyTableCode.call(PyTableCode.java:173) ~[jython-standalone-2.7.3.jar:2.7.3-SNAPSHOT] at org.python.core.PyBaseCode.call(PyBaseCode.java:306) ~[jython-standalone-2.7.3.jar:2.7.3-SNAPSHOT] at org.python.core.PyBaseCode.call(PyBaseCode.java:197) ~[jython-standalone-2.7.3.jar:2.7.3-SNAPSHOT] at org.python.core.PyFunction.__call__(PyFunction.java:485) ~[jython-standalone-2.7.3.jar:2.7.3-SNAPSHOT] at org.python.core.PyMethod.instancemethod___call__(PyMethod.java:237) ~[jython-standalone-2.7.3.jar:2.7.3-SNAPSHOT] at org.python.core.PyMethod.__call__(PyMethod.java:228) ~[jython-standalone-2.7.3.jar:2.7.3-SNAPSHOT] at org.python.core.PyMethod.__call__(PyMethod.java:218) ~[jython-standalone-2.7.3.jar:2.7.3-SNAPSHOT] at org.python.core.PyMethod.__call__(PyMethod.java:213) ~[jython-standalone-2.7.3.jar:2.7.3-SNAPSHOT] at org.python.core.PyObject._jcallexc(PyObject.java:3565) ~[jython-standalone-2.7.3.jar:2.7.3-SNAPSHOT] at org.python.core.PyObject._jcall(PyObject.java:3598) ~[jython-standalone-2.7.3.jar:2.7.3-SNAPSHOT] at org.python.proxies.__main__$EndUserNotification$0.notifyEndUser(Unknown Source) ~[?:?] at org.gluu.oxauth.service.external.ExternalCibaEndUserNotificationService.executeExternalNotifyEndUser(ExternalCibaEndUserNotificationService.java:50) ~[classes/:?] at org.gluu.oxauth.service.external.ExternalCibaEndUserNotificationService.executeExternalNotifyEndUser(ExternalCibaEndUserNotificationService.java:35) ~[classes/:?] at org.gluu.oxauth.service.external.ExternalCibaEndUserNotificationService$Proxy$_$$_WeldClientProxy.executeExternalNotifyEndUser(Unknown Source) ~[classes/:?] at org.gluu.oxauth.ciba.CIBAEndUserNotificationService.notifyEndUser(CIBAEndUserNotificationService.java:52) ~[classes/:?] at org.gluu.oxauth.ciba.CIBAEndUserNotificationService$Proxy$_$$_WeldClientProxy.notifyEndUser(Unknown Source) ~[classes/:?] at org.gluu.oxauth.bcauthorize.ws.rs.BackchannelAuthorizeRestWebServiceImpl.requestBackchannelAuthorizationPost(BackchannelAuthorizeRestWebServiceImpl.java:309) ~[classes/:?] at org.gluu.oxauth.bcauthorize.ws.rs.BackchannelAuthorizeRestWebServiceImpl$Proxy$_$$_WeldClientProxy.requestBackchannelAuthorizationPost(Unknown Source) ~[classes/:?] at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?] at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:566) ~[?:?] at org.jboss.resteasy.core.MethodInjectorImpl.invoke(MethodInjectorImpl.java:170) ~[oxauth-client-4.4.0.Final.jar:?] at org.jboss.resteasy.core.MethodInjectorImpl.invoke(MethodInjectorImpl.java:130) ~[oxauth-client-4.4.0.Final.jar:?] at org.jboss.resteasy.core.ResourceMethodInvoker.internalInvokeOnTarget(ResourceMethodInvoker.java:660) ~[oxauth-client-4.4.0.Final.jar:?] at org.jboss.resteasy.core.ResourceMethodInvoker.invokeOnTargetAfterFilter(ResourceMethodInvoker.java:524) ~[oxauth-client-4.4.0.Final.jar:?] at org.jboss.resteasy.core.ResourceMethodInvoker.lambda$invokeOnTarget$2(ResourceMethodInvoker.java:474) ~[oxauth-client-4.4.0.Final.jar:?] at org.jboss.resteasy.core.interception.jaxrs.PreMatchContainerRequestContext.filter(PreMatchContainerRequestContext.java:364) ~[oxauth-client-4.4.0.Final.jar:?] at org.jboss.resteasy.core.ResourceMethodInvoker.invokeOnTarget(ResourceMethodInvoker.java:476) ~[oxauth-client-4.4.0.Final.jar:?] at org.jboss.resteasy.core.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:434) ~[oxauth-client-4.4.0.Final.jar:?] at org.jboss.resteasy.core.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:408) ~[oxauth-client-4.4.0.Final.jar:?] at org.jboss.resteasy.core.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:69) ~[oxauth-client-4.4.0.Final.jar:?] at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:492) ~[oxauth-client-4.4.0.Final.jar:?] at org.jboss.resteasy.core.SynchronousDispatcher.lambda$invoke$4(SynchronousDispatcher.java:261) ~[oxauth-client-4.4.0.Final.jar:?] at org.jboss.resteasy.core.SynchronousDispatcher.lambda$preprocess$0(SynchronousDispatcher.java:161) ~[oxauth-client-4.4.0.Final.jar:?] at org.jboss.resteasy.core.interception.jaxrs.PreMatchContainerRequestContext.filter(PreMatchContainerRequestContext.java:364) ~[oxauth-client-4.4.0.Final.jar:?] at org.jboss.resteasy.core.SynchronousDispatcher.preprocess(SynchronousDispatcher.java:164) ~[oxauth-client-4.4.0.Final.jar:?] at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:247) ~[oxauth-client-4.4.0.Final.jar:?] at org.jboss.resteasy.plugins.server.servlet.ServletContainerDispatcher.service(ServletContainerDispatcher.java:249) ~[oxauth-client-4.4.0.Final.jar:?] at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:60) ~[oxauth-client-4.4.0.Final.jar:?] at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:55) ~[oxauth-client-4.4.0.Final.jar:?] at javax.servlet.http.HttpServlet.service(HttpServlet.java:590) ~[jetty-servlet-api-4.0.6.jar:?] at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:764) ~[?:?] at org.eclipse.jetty.servlet.ServletHandler$ChainEnd.doFilter(ServletHandler.java:1630) ~[?:?] at org.gluu.server.filters.AbstractCorsFilter.handleNonCORS(AbstractCorsFilter.java:362) ~[oxcore-server-4.4.0.Final.jar:?] at org.gluu.server.filters.AbstractCorsFilter.doFilter(AbstractCorsFilter.java:139) ~[oxcore-server-4.4.0.Final.jar:?] at org.gluu.oxauth.filter.CorsFilter.doFilter(CorsFilter.java:118) ~[classes/:?] at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:202) ~[?:?] at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1600) ~[?:?] at org.gluu.oxauth.audit.debug.ServletLoggingFilter.doFilter(ServletLoggingFilter.java:67) ~[classes/:?] at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:210) ~[?:?] at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1600) ~[?:?] at org.gluu.oxauth.auth.AuthenticationFilter.processBasicAuth(AuthenticationFilter.java:339) ~[classes/:?] at org.gluu.oxauth.auth.AuthenticationFilter.doFilter(AuthenticationFilter.java:169) ~[classes/:?] at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:202) ~[?:?] at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1600) ~[?:?] at org.eclipse.jetty.websocket.servlet.WebSocketUpgradeFilter.doFilter(WebSocketUpgradeFilter.java:170) ~[websocket-servlet-10.0.9.jar:10.0.9] at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:202) ~[?:?] at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1600) ~[?:?] at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:506) ~[?:?] at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:131) ~[?:?] at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:578) ~[?:?] at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122) ~[?:?] at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:223) ~[?:?] at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1571) ~[?:?] at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:221) ~[?:?] at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1378) ~[?:?] at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:176) ~[?:?] at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:463) ~[?:?] at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1544) ~[?:?] at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:174) ~[?:?] at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1300) ~[?:?] at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:129) ~[?:?] at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:192) ~[?:?] at org.eclipse.jetty.server.handler.HandlerList.handle(HandlerList.java:51) ~[?:?] at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122) ~[?:?] at org.eclipse.jetty.server.Server.handle(Server.java:562) ~[?:?] at org.eclipse.jetty.server.HttpChannel.lambda$handle$0(HttpChannel.java:505) ~[?:?] at org.eclipse.jetty.server.HttpChannel.dispatch(HttpChannel.java:762) ~[?:?] at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:497) ~[?:?] at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:282) ~[?:?] at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:319) ~[?:?] at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:100) ~[?:?] at org.eclipse.jetty.io.SelectableChannelEndPoint$1.run(SelectableChannelEndPoint.java:53) ~[?:?] at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:894) ~[?:?] at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:1038) ~[?:?] at java.lang.Thread.run(Thread.java:829) ~[?:?] 2022-05-17 15:16:24,814 INFO [qtp966739377-13] [org.gluu.oxauth.ciba.CIBAEndUserNotificationService] (CIBAEndUserNotificationService.java:51) - CIBA: Notification sent to the end user, result true ``` The log releated to the *unsupported_response_type* found in oxauth.log is the following: ``` 2022-05-17 15:16:29,702 ERROR [qtp966739377-15] [gluu.oxauth.authorize.ws.rs.AuthorizeRestWebServiceImpl] (AuthorizeRestWebServiceImpl.java:623) - HTTP 400 Bad Request javax.ws.rs.WebApplicationException: HTTP 400 Bad Request at org.gluu.oxauth.authorize.ws.rs.AuthorizeRestWebServiceImpl.requestAuthorization(AuthorizeRestWebServiceImpl.java:356) ~[classes/:?] at org.gluu.oxauth.authorize.ws.rs.AuthorizeRestWebServiceImpl.requestAuthorizationGet(AuthorizeRestWebServiceImpl.java:161) ~[classes/:?] at org.gluu.oxauth.authorize.ws.rs.AuthorizeRestWebServiceImpl$Proxy$_$$_WeldClientProxy.requestAuthorizationGet(Unknown Source) ~[classes/:?] at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?] at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:?] at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] at java.lang.reflect.Method.invoke(Method.java:566) ~[?:?] at org.jboss.resteasy.core.MethodInjectorImpl.invoke(MethodInjectorImpl.java:170) ~[oxauth-client-4.4.0.Final.jar:?] at org.jboss.resteasy.core.MethodInjectorImpl.invoke(MethodInjectorImpl.java:130) ~[oxauth-client-4.4.0.Final.jar:?] at org.jboss.resteasy.core.ResourceMethodInvoker.internalInvokeOnTarget(ResourceMethodInvoker.java:660) ~[oxauth-client-4.4.0.Final.jar:?] at org.jboss.resteasy.core.ResourceMethodInvoker.invokeOnTargetAfterFilter(ResourceMethodInvoker.java:524) ~[oxauth-client-4.4.0.Final.jar:?] at org.jboss.resteasy.core.ResourceMethodInvoker.lambda$invokeOnTarget$2(ResourceMethodInvoker.java:474) ~[oxauth-client-4.4.0.Final.jar:?] at org.jboss.resteasy.core.interception.jaxrs.PreMatchContainerRequestContext.filter(PreMatchContainerRequestContext.java:364) ~[oxauth-client-4.4.0.Final.jar:?] at org.jboss.resteasy.core.ResourceMethodInvoker.invokeOnTarget(ResourceMethodInvoker.java:476) ~[oxauth-client-4.4.0.Final.jar:?] at org.jboss.resteasy.core.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:434) ~[oxauth-client-4.4.0.Final.jar:?] at org.jboss.resteasy.core.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:408) ~[oxauth-client-4.4.0.Final.jar:?] at org.jboss.resteasy.core.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:69) ~[oxauth-client-4.4.0.Final.jar:?] at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:492) ~[oxauth-client-4.4.0.Final.jar:?] at org.jboss.resteasy.core.SynchronousDispatcher.lambda$invoke$4(SynchronousDispatcher.java:261) ~[oxauth-client-4.4.0.Final.jar:?] at org.jboss.resteasy.core.SynchronousDispatcher.lambda$preprocess$0(SynchronousDispatcher.java:161) ~[oxauth-client-4.4.0.Final.jar:?] at org.jboss.resteasy.core.interception.jaxrs.PreMatchContainerRequestContext.filter(PreMatchContainerRequestContext.java:364) ~[oxauth-client-4.4.0.Final.jar:?] at org.jboss.resteasy.core.SynchronousDispatcher.preprocess(SynchronousDispatcher.java:164) ~[oxauth-client-4.4.0.Final.jar:?] at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:247) ~[oxauth-client-4.4.0.Final.jar:?] at org.jboss.resteasy.plugins.server.servlet.ServletContainerDispatcher.service(ServletContainerDispatcher.java:249) ~[oxauth-client-4.4.0.Final.jar:?] at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:60) ~[oxauth-client-4.4.0.Final.jar:?] at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:55) ~[oxauth-client-4.4.0.Final.jar:?] at javax.servlet.http.HttpServlet.service(HttpServlet.java:590) ~[jetty-servlet-api-4.0.6.jar:?] at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:764) ~[?:?] at org.eclipse.jetty.servlet.ServletHandler$ChainEnd.doFilter(ServletHandler.java:1630) ~[?:?] at org.gluu.server.filters.AbstractCorsFilter.handleNonCORS(AbstractCorsFilter.java:362) ~[oxcore-server-4.4.0.Final.jar:?] at org.gluu.server.filters.AbstractCorsFilter.doFilter(AbstractCorsFilter.java:139) ~[oxcore-server-4.4.0.Final.jar:?] at org.gluu.oxauth.filter.CorsFilter.doFilter(CorsFilter.java:118) ~[classes/:?] at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:202) ~[?:?] at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1600) ~[?:?] at org.gluu.oxauth.audit.debug.ServletLoggingFilter.doFilter(ServletLoggingFilter.java:67) ~[classes/:?] at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:210) ~[?:?] at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1600) ~[?:?] at org.gluu.oxauth.auth.AuthenticationFilter.doFilter(AuthenticationFilter.java:205) ~[classes/:?] at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:202) ~[?:?] at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1600) ~[?:?] at org.eclipse.jetty.websocket.servlet.WebSocketUpgradeFilter.doFilter(WebSocketUpgradeFilter.java:170) ~[websocket-servlet-10.0.9.jar:10.0.9] at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:202) ~[?:?] at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1600) ~[?:?] at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:506) ~[?:?] at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:131) ~[?:?] at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:578) ~[?:?] at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122) ~[?:?] at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:223) ~[?:?] at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1571) ~[?:?] at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:221) ~[?:?] at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1378) ~[?:?] at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:176) ~[?:?] at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:463) ~[?:?] at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1544) ~[?:?] at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:174) ~[?:?] at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1300) ~[?:?] at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:129) ~[?:?] at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:192) ~[?:?] at org.eclipse.jetty.server.handler.HandlerList.handle(HandlerList.java:51) ~[?:?] at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122) ~[?:?] at org.eclipse.jetty.server.Server.handle(Server.java:562) ~[?:?] at org.eclipse.jetty.server.HttpChannel.lambda$handle$0(HttpChannel.java:505) ~[?:?] at org.eclipse.jetty.server.HttpChannel.dispatch(HttpChannel.java:762) ~[?:?] at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:497) ~[?:?] at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:282) ~[?:?] at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:319) ~[?:?] at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:100) ~[?:?] at org.eclipse.jetty.io.SelectableChannelEndPoint$1.run(SelectableChannelEndPoint.java:53) ~[?:?] at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.runTask(AdaptiveExecutionStrategy.java:412) ~[?:?] at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.consumeTask(AdaptiveExecutionStrategy.java:381) ~[?:?] at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.tryProduce(AdaptiveExecutionStrategy.java:268) ~[?:?] at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.lambda$new$0(AdaptiveExecutionStrategy.java:138) ~[?:?] at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:407) ~[?:?] at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:894) ~[?:?] at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:1038) ~[?:?] at java.lang.Thread.run(Thread.java:829) ~[?:?] ``` Can you kindly help me to solve this issue ? Thank you so much