Jetty WebSocket configuaration with WildFly

[Madhava Alampally]

Hi Team, 

Can you please let me know how to configure jetty WebSockets (Jetty 9.4.44 or Above) with WildFly?

I've tried to deploy Jetty along with my ear but facing the following issues.

If I use, 

javax-websocket-client-impl-9.4.44.v20210927.jar

javax-websocket-server-impl-9.4.44.v20210927.jar

websocket-client-9.4.44.v20210927.jar

websocket-server-9.4.44.v20210927

 along with other Jetty jars, I'm getting the following exception. 

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java.lang.RuntimeException: javax.servlet.ServletException: Not running on Jetty, JSR-356 support unavailable
        at org.wildfly.extension.undertow.deployment.UndertowDeploymentService$1.run(UndertowDeploymentService.java:90)
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
        at java.util.concurrent.FutureTask.run(FutureTask.java:266)
        at org.jboss.threads.ContextClassLoaderSavingRunnable.run(ContextClassLoaderSavingRunnable.java:35)
        at org.jboss.threads.EnhancedQueueExecutor.safeRun(EnhancedQueueExecutor.java:1990)
        at org.jboss.threads.EnhancedQueueExecutor$ThreadBody.doRunTask(EnhancedQueueExecutor.java:1486)
        at org.jboss.threads.EnhancedQueueExecutor$ThreadBody.run(EnhancedQueueExecutor.java:1377)
        at java.lang.Thread.run(Thread.java:748)
        at org.jboss.threads.JBossThread.run(JBossThread.java:513)
Caused by: java.lang.RuntimeException: javax.servlet.ServletException: Not running on Jetty, JSR-356 support unavailable
        at io.undertow.servlet.core.DeploymentManagerImpl.deploy(DeploymentManagerImpl.java:257)
        at org.wildfly.extension.undertow.deployment.UndertowDeploymentService.startContext(UndertowDeploymentService.java:105)
        at org.wildfly.extension.undertow.deployment.UndertowDeploymentService$1.run(UndertowDeploymentService.java:87)
        ... 8 more
Caused by: javax.servlet.ServletException: Not running on Jetty, JSR-356 support unavailable
        at org.eclipse.jetty.websocket.jsr356.server.deploy.WebSocketServerContainerInitializer.onStartup(WebSocketServerContainerInitializer.java:271)
        at io.undertow.servlet.core.DeploymentManagerImpl$1.call(DeploymentManagerImpl.java:204)
        at io.undertow.servlet.core.DeploymentManagerImpl$1.call(DeploymentManagerImpl.java:187)
        at io.undertow.servlet.core.ServletRequestContextThreadSetupAction$1.call(ServletRequestContextThreadSetupAction.java:42)
        at io.undertow.servlet.core.ContextClassLoaderSetupAction$1.call(ContextClassLoaderSetupAction.java:43)
        at org.wildfly.extension.undertow.security.SecurityContextThreadSetupAction.lambda$create$0(SecurityContextThreadSetupAction.java:105)
        at org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1535)
        at org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1535)
        at org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1535)
        at org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1535)
        at io.undertow.servlet.core.DeploymentManagerImpl.deploy(DeploymentManagerImpl.java:255)

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If I remove the following jars from class path, I'm getting another exceptions.

javax-websocket-client-impl-9.4.44.v20210927.jar

javax-websocket-server-impl-9.4.44.v20210927.jar 

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java.lang.IllegalStateException: Unable to find ServletContextHandler for provided ServletContext

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Can someone help me on this? Or doc reference to configure the Jetty with WildFly

Thanks & Regards

Madhava

[Madhava Alampally]

Hi Team,

If someone review my request and provides the feedback please.

Thanks & Regards

Madhava

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[Madhava Alampally]

[Emmanuel Hugonnet]

Jetty is a servlet container, it can't be deployed in a Servlet Container, it will just conflict.

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[Madhava Alampally]

Thank you for your response. Earlier we used Jboss 5.x + Jetty 8.x as embedded for WebSockets which used to work as expected.

We upgraded JBoss to WildFly and it's working as expected with jetty 8.x.

The  problem begins when we upgrade Jetty to 9.x.  I hope it will clarify how we are using it.

Only the difference could be, Jetty 8.x is not JSR 356 compliant and Jetty 9.x is as per JSR 356.

Is there any way to use WildFly + Jetty for WebSockets?

How can I enable JSR 356 with undertow module to use WebE=Sockets

Thanks & Regards

Madhava