I’ve recently updated our app to Vaadin 16 and have run into a problem: the “logout” suddenly no longer works.
We’re using the “standard” Spring security solution as outlined in e.g. the Vaadin 14 tutorial.
@EnableWebSecurity
@Configuration
public class SecurityConfiguration extends WebSecurityConfigurerAdapter {
private static final String LOGIN_PROCESSING_URL = "/login";
private static final String LOGIN_FAILURE_URL = "/login?error";
private static final String LOGIN_URL = "/login";
private static final String LOGOUT_SUCCESS_URL = "/login";
/**
* Tests if the request is an internal framework request. The test consists of
* checking if the request parameter is present and if its value is consistent
* with any of the request types know.
*
* @param request {@link HttpServletRequest}
* @return true if the request is an internal framework request. False otherwise.
*/
static boolean isFrameworkInternalRequest(HttpServletRequest request) {
final String parameterValue = request.getParameter(ApplicationConstants.REQUEST_TYPE_PARAMETER);
return parameterValue != null &&
Stream.of(HandlerHelper.RequestType.values()).anyMatch(r -> r.getIdentifier().equals(parameterValue));
}
/**
* Require login to access internal pages and configure login form.
*/
@Override
protected void configure(HttpSecurity http) throws Exception {
// Not using Spring CSRF here to be able to use plain HTML for the login page
http.csrf()
.disable()
// Register our CustomRequestCache, that saves unauthorized access attempts, so
// the user is redirected after login.
.requestCache()
.requestCache(new SimpleRequestCache())
// Restrict access to our application.
.and()
.authorizeRequests()
// Allow all Vaadin internal requests.
.requestMatchers(SecurityConfiguration::isFrameworkInternalRequest)
.permitAll()
// Allow all requests by logged in users.
.anyRequest()
.authenticated()
// Configure the login page.
.and()
.formLogin()
.loginPage(LOGIN_URL)
.permitAll()
.loginProcessingUrl(LOGIN_PROCESSING_URL)
.failureUrl(LOGIN_FAILURE_URL)
// Configure logout
.and()
.logout()
.logoutSuccessUrl(LOGOUT_SUCCESS_URL);
}
/**
* Allows access to static resources, bypassing Spring security.
*/
@Override
public void configure(WebSecurity web) {
web.ignoring().antMatchers(
// Client-side JS
"/VAADIN/**",
// the standard favicon URI
"/favicon.ico",
// the robots exclusion standard
"/robots.txt",
// web application manifest
"/manifest.webmanifest", "/sw.js", "/offline.html",
// icons and images
"/icons/**", "/META-INF/resources/images/**", "/styles/**");
}
}
This setup works very well under 14.2 but under 16 I get a NotFoundException complaining it can’t find a route to “logout”:
com.vaadin.flow.router.NotFoundException: Couldn't find route for 'logout'
at com.vaadin.flow.component.internal.JavaScriptBootstrapUI.handleErrorNavigation(JavaScriptBootstrapUI.java:303) [flow-server-3.1.1.jar:3.1.1]
at com.vaadin.flow.component.internal.JavaScriptBootstrapUI.renderViewForRoute(JavaScriptBootstrapUI.java:198) [flow-server-3.1.1.jar:3.1.1]
at com.vaadin.flow.component.internal.JavaScriptBootstrapUI.connectClient(JavaScriptBootstrapUI.java:124) [flow-server-3.1.1.jar:3.1.1]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_242]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_242]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_242]
at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_242]
at com.vaadin.flow.server.communication.rpc.PublishedServerEventHandlerRpcHandler.invokeMethod(PublishedServerEventHandlerRpcHandler.java:200) [flow-server-3.1.1.jar:3.1.1]
at com.vaadin.flow.server.communication.rpc.PublishedServerEventHandlerRpcHandler.invokeMethod(PublishedServerEventHandlerRpcHandler.java:177) [flow-server-3.1.1.jar:3.1.1]
at com.vaadin.flow.server.communication.rpc.PublishedServerEventHandlerRpcHandler.invokeMethod(PublishedServerEventHandlerRpcHandler.java:137) [flow-server-3.1.1.jar:3.1.1]
at com.vaadin.flow.server.communication.rpc.PublishedServerEventHandlerRpcHandler.handleNode(PublishedServerEventHandlerRpcHandler.java:125) [flow-server-3.1.1.jar:3.1.1]
at com.vaadin.flow.server.communication.rpc.AbstractRpcInvocationHandler.handle(AbstractRpcInvocationHandler.java:64) [flow-server-3.1.1.jar:3.1.1]
at com.vaadin.flow.server.communication.ServerRpcHandler.handleInvocationData(ServerRpcHandler.java:409) [flow-server-3.1.1.jar:3.1.1]
at com.vaadin.flow.server.communication.ServerRpcHandler.lambda$handleInvocations$1(ServerRpcHandler.java:390) [flow-server-3.1.1.jar:3.1.1]
at java.util.ArrayList.forEach(ArrayList.java:1257) ~[na:1.8.0_242]
at com.vaadin.flow.server.communication.ServerRpcHandler.handleInvocations(ServerRpcHandler.java:390) [flow-server-3.1.1.jar:3.1.1]
at com.vaadin.flow.server.communication.ServerRpcHandler.handleRpc(ServerRpcHandler.java:317) [flow-server-3.1.1.jar:3.1.1]
at com.vaadin.flow.server.communication.UidlRequestHandler.synchronizedHandleRequest(UidlRequestHandler.java:114) ~[flow-server-3.1.1.jar:3.1.1]
at com.vaadin.flow.server.SynchronizedRequestHandler.handleRequest(SynchronizedRequestHandler.java:40) ~[flow-server-3.1.1.jar:3.1.1]
at com.vaadin.flow.server.VaadinService.handleRequest(VaadinService.java:1539) ~[flow-server-3.1.1.jar:3.1.1]
at com.vaadin.flow.server.VaadinServlet.service(VaadinServlet.java:238) ~[flow-server-3.1.1.jar:3.1.1]
at com.vaadin.flow.spring.SpringServlet.service(SpringServlet.java:117) ~[vaadin-spring-13.0.2.jar:na]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:590) ~[jakarta.servlet-api-4.0.3.jar:4.0.3]
at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:852) ~[jetty-servlet-9.4.20.v20190813.jar:9.4.20.v20190813]
at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:544) ~[jetty-servlet-9.4.20.v20190813.jar:9.4.20.v20190813]
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143) ~[jetty-server-9.4.20.v20190813.jar:9.4.20.v20190813]
at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:554) ~[jetty-security-9.4.20.v20190813.jar:9.4.20.v20190813]
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127) ~[jetty-server-9.4.20.v20190813.jar:9.4.20.v20190813]
at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:235) ~[jetty-server-9.4.20.v20190813.jar:9.4.20.v20190813]
at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1581) ~[jetty-server-9.4.20.v20190813.jar:9.4.20.v20190813]
at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:233) ~[jetty-server-9.4.20.v20190813.jar:9.4.20.v20190813]
at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1307) ~[jetty-server-9.4.20.v20190813.jar:9.4.20.v20190813]
at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:188) ~[jetty-server-9.4.20.v20190813.jar:9.4.20.v20190813]
at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:482) ~[jetty-servlet-9.4.20.v20190813.jar:9.4.20.v20190813]
at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1549) ~[jetty-server-9.4.20.v20190813.jar:9.4.20.v20190813]
at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:186) ~[jetty-server-9.4.20.v20190813.jar:9.4.20.v20190813]
at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1204) ~[jetty-server-9.4.20.v20190813.jar:9.4.20.v20190813]
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141) ~[jetty-server-9.4.20.v20190813.jar:9.4.20.v20190813]
at org.eclipse.jetty.server.Dispatcher.forward(Dispatcher.java:171) ~[jetty-server-9.4.20.v20190813.jar:9.4.20.v20190813]
at org.eclipse.jetty.server.Dispatcher.forward(Dispatcher.java:81) ~[jetty-server-9.4.20.v20190813.jar:9.4.20.v20190813]
at org.springframework.web.servlet.mvc.ServletForwardingController.handleRequestInternal(ServletForwardingController.java:141) ~[spring-webmvc-5.2.0.RELEASE.jar:5.2.0.RELEASE]
at org.springframework.web.servlet.mvc.AbstractController.handleRequest(AbstractController.java:177) ~[spring-webmvc-5.2.0.RELEASE.jar:5.2.0.RELEASE]
at org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter.handle(SimpleControllerHandlerAdapter.java:52) ~[spring-webmvc-5.2.0.RELEASE.jar:5.2.0.RELEASE]
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1040) ~[spring-webmvc-5.2.0.RELEASE.jar:5.2.0.RELEASE]
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:943) ~[spring-webmvc-5.2.0.RELEASE.jar:5.2.0.RELEASE]
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) ~[spring-webmvc-5.2.0.RELEASE.jar:5.2.0.RELEASE]
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:909) ~[spring-webmvc-5.2.0.RELEASE.jar:5.2.0.RELEASE]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:523) ~[jakarta.servlet-api-4.0.3.jar:4.0.3]
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) ~[spring-webmvc-5.2.0.RELEASE.jar:5.2.0.RELEASE]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:590) ~[jakarta.servlet-api-4.0.3.jar:4.0.3]
at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:852) ~[jetty-servlet-9.4.20.v20190813.jar:9.4.20.v20190813]
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1604) ~[jetty-servlet-9.4.20.v20190813.jar:9.4.20.v20190813]
at org.eclipse.jetty.websocket.server.WebSocketUpgradeFilter.doFilter(WebSocketUpgradeFilter.java:226) ~[websocket-server-9.4.20.v20190813.jar:9.4.20.v20190813]
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1591) ~[jetty-servlet-9.4.20.v20190813.jar:9.4.20.v20190813]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:320) ~[spring-security-web-5.2.0.RELEASE.jar:5.2.0.RELEASE]
at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:126) ~[spring-security-web-5.2.0.RELEASE.jar:5.2.0.RELEASE]
at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:90) ~[spring-security-web-5.2.0.RELEASE.jar:5.2.0.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) ~[spring-security-web-5.2.0.RELEASE.jar:5.2.0.RELEASE]
at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:118) ~[spring-security-web-5.2.0.RELEASE.jar:5.2.0.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) ~[spring-security-web-5.2.0.RELEASE.jar:5.2.0.RELEASE]
at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:137) ~[spring-security-web-5.2.0.RELEASE.jar:5.2.0.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) ~[spring-security-web-5.2.0.RELEASE.jar:5.2.0.RELEASE]
at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:111) ~[spring-security-web-5.2.0.RELEASE.jar:5.2.0.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) ~[spring-security-web-5.2.0.RELEASE.jar:5.2.0.RELEASE]
at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:158) ~[spring-security-web-5.2.0.RELEASE.jar:5.2.0.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) ~[spring-security-web-5.2.0.RELEASE.jar:5.2.0.RELEASE]
at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:63) ~[spring-security-web-5.2.0.RELEASE.jar:5.2.0.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) ~[spring-security-web-5.2.0.RELEASE.jar:5.2.0.RELEASE]
at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:200) ~[spring-security-web-5.2.0.RELEASE.jar:5.2.0.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) ~[spring-security-web-5.2.0.RELEASE.jar:5.2.0.RELEASE]
at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:116) ~[spring-security-web-5.2.0.RELEASE.jar:5.2.0.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) ~[spring-security-web-5.2.0.RELEASE.jar:5.2.0.RELEASE]
at org.springframework.security.web.header.HeaderWriterFilter.doHeadersAfter(HeaderWriterFilter.java:92) ~[spring-security-web-5.2.0.RELEASE.jar:5.2.0.RELEASE]
at org.springframework.security.web.header.HeaderWriterFilter.doFilterInternal(HeaderWriterFilter.java:77) ~[spring-security-web-5.2.0.RELEASE.jar:5.2.0.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.2.0.RELEASE.jar:5.2.0.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) ~[spring-security-web-5.2.0.RELEASE.jar:5.2.0.RELEASE]
at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:105) ~[spring-security-web-5.2.0.RELEASE.jar:5.2.0.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) ~[spring-security-web-5.2.0.RELEASE.jar:5.2.0.RELEASE]
at org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:56) ~[spring-security-web-5.2.0.RELEASE.jar:5.2.0.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.2.0.RELEASE.jar:5.2.0.RELEASE]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334) ~[spring-security-web-5.2.0.RELEASE.jar:5.2.0.RELEASE]
at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:215) ~[spring-security-web-5.2.0.RELEASE.jar:5.2.0.RELEASE]
at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:178) ~[spring-security-web-5.2.0.RELEASE.jar:5.2.0.RELEASE]
at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:358) ~[spring-web-5.2.0.RELEASE.jar:5.2.0.RELEASE]
at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:271) ~[spring-web-5.2.0.RELEASE.jar:5.2.0.RELEASE]
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1591) ~[jetty-servlet-9.4.20.v20190813.jar:9.4.20.v20190813]
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) ~[spring-web-5.2.0.RELEASE.jar:5.2.0.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.2.0.RELEASE.jar:5.2.0.RELEASE]
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1591) ~[jetty-servlet-9.4.20.v20190813.jar:9.4.20.v20190813]
at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93) ~[spring-web-5.2.0.RELEASE.jar:5.2.0.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.2.0.RELEASE.jar:5.2.0.RELEASE]
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1591) ~[jetty-servlet-9.4.20.v20190813.jar:9.4.20.v20190813]
at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.doFilterInternal(WebMvcMetricsFilter.java:108) ~[spring-boot-actuator-2.2.0.RELEASE.jar:2.2.0.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.2.0.RELEASE.jar:5.2.0.RELEASE]
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1591) ~[jetty-servlet-9.4.20.v20190813.jar:9.4.20.v20190813]
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) ~[spring-web-5.2.0.RELEASE.jar:5.2.0.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.2.0.RELEASE.jar:5.2.0.RELEASE]
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1591) ~[jetty-servlet-9.4.20.v20190813.jar:9.4.20.v20190813]
at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:542) ~[jetty-servlet-9.4.20.v20190813.jar:9.4.20.v20190813]
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143) ~[jetty-server-9.4.20.v20190813.jar:9.4.20.v20190813]
at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:536) ~[jetty-security-9.4.20.v20190813.jar:9.4.20.v20190813]
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127) ~[jetty-server-9.4.20.v20190813.jar:9.4.20.v20190813]
at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:235) ~[jetty-server-9.4.20.v20190813.jar:9.4.20.v20190813]
at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1581) ~[jetty-server-9.4.20.v20190813.jar:9.4.20.v20190813]
at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:233) ~[jetty-server-9.4.20.v20190813.jar:9.4.20.v20190813]
at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1307) ~[jetty-server-9.4.20.v20190813.jar:9.4.20.v20190813]
at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:188) ~[jetty-server-9.4.20.v20190813.jar:9.4.20.v20190813]
at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:482) ~[jetty-servlet-9.4.20.v20190813.jar:9.4.20.v20190813]
at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1549) ~[jetty-server-9.4.20.v20190813.jar:9.4.20.v20190813]
at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:186) ~[jetty-server-9.4.20.v20190813.jar:9.4.20.v20190813]
at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1204) ~[jetty-server-9.4.20.v20190813.jar:9.4.20.v20190813]
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141) ~[jetty-server-9.4.20.v20190813.jar:9.4.20.v20190813]
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127) ~[jetty-server-9.4.20.v20190813.jar:9.4.20.v20190813]
at org.eclipse.jetty.server.Server.handle(Server.java:494) ~[jetty-server-9.4.20.v20190813.jar:9.4.20.v20190813]
at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:374) ~[jetty-server-9.4.20.v20190813.jar:9.4.20.v20190813]
at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:268) ~[jetty-server-9.4.20.v20190813.jar:9.4.20.v20190813]
at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:311) ~[jetty-io-9.4.20.v20190813.jar:9.4.20.v20190813]
at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:103) ~[jetty-io-9.4.20.v20190813.jar:9.4.20.v20190813]
at org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:117) ~[jetty-io-9.4.20.v20190813.jar:9.4.20.v20190813]
at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:336) ~[jetty-util-9.4.20.v20190813.jar:9.4.20.v20190813]
at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:313) ~[jetty-util-9.4.20.v20190813.jar:9.4.20.v20190813]
at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:171) ~[jetty-util-9.4.20.v20190813.jar:9.4.20.v20190813]
at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:129) ~[jetty-util-9.4.20.v20190813.jar:9.4.20.v20190813]
at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:367) ~[jetty-util-9.4.20.v20190813.jar:9.4.20.v20190813]
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:782) ~[jetty-util-9.4.20.v20190813.jar:9.4.20.v20190813]
at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:918) ~[jetty-util-9.4.20.v20190813.jar:9.4.20.v20190813]
at java.lang.Thread.run(Thread.java:748) ~[na:1.8.0_242]
Have I missed something in the migration guide or is this a bug?