Wildfly 10.0 deploy war 'cannot be cast to WsServerContainer' exception

Problem

I took application from blog post: https://spring.io/blog/2014/11/23/bootiful-java-ee-support-in-spring-boot-1-2 and just up spring-boot version to 1.3.5.RELEASE (1.2.0.BUILD-SNAPSHOT don’t work too)

I tried deploy spring-boot app to WildFly server and got error.

I found that it’s don’t work.

Workaround is globally ignore tomcat-embed-websocket via “provide” maven trick like this:

<dependency>
       <artifactId>tomcat-embed-websocket</artifactId>
       <groupId>org.apache.tomcat.embed</groupId>
      <scope>provided</scope>
</dependency>

Environment:

Wildfly-10.0.0.Final Spring Boot 1.3.5.RELEASE Jdk1.8.0_31

Bug report

16:38:27,649 ERROR [org.jboss.msc.service.fail] (ServerService Thread Pool -- 111) MSC000001: Failed to start service jboss.undertow.deployment.default-server.default-host./ee-test: org.jboss.msc.service.StartException in service jboss.undertow.deployment.default-server.default-host./ee-test: java.lang.RuntimeException: java.lang.ClassCastException: org.apache.tomcat.websocket.server.WsServerContainer cannot be cast to io.undertow.websockets.jsr.ServerWebSocketContainer
    at org.wildfly.extension.undertow.deployment.UndertowDeploymentService$1.run(UndertowDeploymentService.java:85)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)
    at org.jboss.threads.JBossThread.run(JBossThread.java:320)
Caused by: java.lang.RuntimeException: java.lang.ClassCastException: org.apache.tomcat.websocket.server.WsServerContainer cannot be cast to io.undertow.websockets.jsr.ServerWebSocketContainer
    at io.undertow.servlet.core.DeploymentManagerImpl.deploy(DeploymentManagerImpl.java:231)
    at org.wildfly.extension.undertow.deployment.UndertowDeploymentService.startContext(UndertowDeploymentService.java:100)
    at org.wildfly.extension.undertow.deployment.UndertowDeploymentService$1.run(UndertowDeploymentService.java:82)
    ... 6 more
Caused by: java.lang.ClassCastException: org.apache.tomcat.websocket.server.WsServerContainer cannot be cast to io.undertow.websockets.jsr.ServerWebSocketContainer
    at io.undertow.websockets.jsr.Bootstrap$WebSocketListener.contextInitialized(Bootstrap.java:104)
    at io.undertow.servlet.core.ApplicationListeners.contextInitialized(ApplicationListeners.java:187)
    at io.undertow.servlet.core.DeploymentManagerImpl.deploy(DeploymentManagerImpl.java:198)
    ... 8 more

16:38:27,651 ERROR [org.jboss.as.controller.management-operation] (management-handler-thread - 4) WFLYCTL0013: Operation ("deploy") failed - address: ([("deployment" => "ee-test.war")]) - failure description: {"WFLYCTL0080: Failed services" => {"jboss.undertow.deployment.default-server.default-host./ee-test" => "org.jboss.msc.service.StartException in service jboss.undertow.deployment.default-server.default-host./ee-test: java.lang.RuntimeException: java.lang.ClassCastException: org.apache.tomcat.websocket.server.WsServerContainer cannot be cast to io.undertow.websockets.jsr.ServerWebSocketContainer
    Caused by: java.lang.RuntimeException: java.lang.ClassCastException: org.apache.tomcat.websocket.server.WsServerContainer cannot be cast to io.undertow.websockets.jsr.ServerWebSocketContainer
    Caused by: java.lang.ClassCastException: org.apache.tomcat.websocket.server.WsServerContainer cannot be cast to io.undertow.websockets.jsr.ServerWebSocketContainer"}}
16:38:27,653 ERROR [org.jboss.as.server] (management-handler-thread - 4) WFLYSRV0021: Deploy of deployment "ee-test.war" was rolled back with the following failure message: 
{"WFLYCTL0080: Failed services" => {"jboss.undertow.deployment.default-server.default-host./ee-test" => "org.jboss.msc.service.StartException in service jboss.undertow.deployment.default-server.default-host./ee-test: java.lang.RuntimeException: java.lang.ClassCastException: org.apache.tomcat.websocket.server.WsServerContainer cannot be cast to io.undertow.websockets.jsr.ServerWebSocketContainer
    Caused by: java.lang.RuntimeException: java.lang.ClassCastException: org.apache.tomcat.websocket.server.WsServerContainer cannot be cast to io.undertow.websockets.jsr.ServerWebSocketContainer
    Caused by: java.lang.ClassCastException: org.apache.tomcat.websocket.server.WsServerContainer cannot be cast to io.undertow.websockets.jsr.ServerWebSocketContainer"}}

[pavelety]

To resolve this in Wildfly 11 I edited pom.xml like this

<dependency>
	<groupId>org.springframework.boot</groupId>
	<artifactId>spring-boot-starter-web</artifactId>
	<exclusions>
		<exclusion>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-tomcat</artifactId>
		</exclusion>
		<exclusion>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-logging</artifactId>
		</exclusion>
	</exclusions>
</dependency>
<dependency>
	<groupId>org.springframework.boot</groupId>
	<artifactId>spring-boot-starter-log4j2</artifactId>
	<scope>provided</scope>
</dependency>
<dependency>
	<groupId>javax</groupId>
	<artifactId>javaee-web-api</artifactId>
	<version>7.0</version>
	<scope>provided</scope>
</dependency>

Also I resolved here problems with log4j2

[wilkinsona]

@zaenk That’s Gradle and you were posting Maven snippets earlier. As you’ve shown, Gradle handles exclusions differently to Maven.