Websocket JSR-356与Jetty失败9.4.1

我目前的Web服务器是嵌入Jetty 9.1.5。它适用于JSR-356来创建websocket。这些天，我正在尝试升级到Jetty 9.4.1。除了websocket，一切都很好。
我的代码象下面这样：Websocket JSR-356与Jetty失败9.4.1

嵌入式码头和网页套接字库：

<dependency> 
    <groupId>org.eclipse.jetty</groupId> 
    <artifactId>jetty-server</artifactId> 
    <version>9.4.1.v20170120</version> 
</dependency> 
<dependency> 
    <groupId>org.eclipse.jetty</groupId> 
    <artifactId>jetty-webapp</artifactId> 
    <version>9.4.1.v20170120</version> 
</dependency> 
<dependency> 
    <groupId>org.eclipse.jetty</groupId> 
    <artifactId>jetty-annotations</artifactId> 
    <version>9.4.1.v20170120</version> 
</dependency> 
<dependency> 
    <groupId>org.eclipse.jetty.websocket</groupId> 
    <artifactId>javax-websocket-server-impl</artifactId> 
    <version>9.4.1.v20170120</version> 
</dependency>

服务器端点：

@ServerEndpoint(value = "/ws/communication/{officeId}/{username}/{oldWSSession}") 
    class WSCommunication { 
    // @OnOpen, @OnMessage, @OnClose methods 
    }

码头服务器，的webapp上下文，WebSocket的配置：

// Jetty server 
    Server server = new Server(); 
    String[] configFiles = {"./etc/jetty.xml"}; 
    for (String configFile : configFiles) { 
    XmlConfiguration configuration = new XmlConfiguration(new File(configFile).toURI().toURL()); 
    configuration.configure(server); 

    Connector[] connectors = server.getConnectors(); 
    if (connectors != null && connectors.length == 2) { 
     ServerConnector serverConnector = (ServerConnector) connectors[1]; 
     serverConnector.setPort(8443); 
    } 
    } 

    // Webapp context 
    WebAppContext webContext = new WebAppContext(ResourceManager.getWebappsPath(), "/myContext"); 
    webContext.setContextPath("/myContext"); 
    webContext.setResourceBase(ResourceManager.getWebappsPath() + contextPath); 
    webContext.setInitParameter("org.eclipse.jetty.servlet.Default.dirAllowed", "false"); 

    private List<WebAppContext> listWebContext = new ArrayList<>(); 
    listWebContext.add(webContext); 

    ContextHandlerCollection contexts = new ContextHandlerCollection(); 
    contexts.setHandlers(listWebContext.toArray(new WebAppContext[listWebContext.size()])); 
    server.setHandler(contexts); 

    // Start server 
    server.start(); 

    // Websocket 
    ServerContainer container = 
    WebSocketServerContainerInitializer.configureContext(webContext); 
    container.addEndpoint(webContext.getClassLoader().loadClass(
         "com.example.WSCommunication")); 

    container.setDefaultMaxSessionIdleTimeout(84600); 

    // Dump server log 
    server.dumpStdErr();

转储：

[email protected] - STARTED 
     += qtp348159759{STARTED,10<=19<=200,i=1,q=0} - STARTED 
     | +- 30 qtp348159759-30 RUNNABLE @ sun.nio.ch.KQueueArrayWrapper.kevent0(Native Method) 
    | +- 31 qtp348159759-31-lowPrioritySelector BLOCKED @ org.eclipse.jetty.io.ManagedSelector$SelectorProducer.produce(ManagedSelector.java:244) prio=1 
     | +- 89 qtp348159759-89-lowPrioritySelector BLOCKED @ org.eclipse.jetty.io.ManagedSelector$SelectorProducer.produce(ManagedSelector.java:244) prio=1 
     | +- 85 qtp348159759-85-lowPrioritySelector BLOCKED @ org.eclipse.jetty.io.ManagedSelector$SelectorProducer.produce(ManagedSelector.java:244) prio=1 
     | +- 33 qtp348159759-33-lowPrioritySelector BLOCKED @ org.eclipse.jetty.io.ManagedSelector$SelectorProducer.produce(ManagedSelector.java:244) prio=1 
     | +- 36 qtp348159759-36 RUNNABLE @ sun.nio.ch.KQueueArrayWrapper.kevent0(Native Method) 
    | +- 35 qtp348159759-35-lowPrioritySelector BLOCKED @ org.eclipse.jetty.io.ManagedSelector$SelectorProducer.produce(ManagedSelector.java:244) prio=1 
     | +- 90 [email protected]@31de14e{SSL,[ssl, http/1.1]}{0.0.0.0:8443} RUNNABLE @ sun.nio.ch.ServerSocketChannelImpl.accept0(Native Method) prio=3 
     | +- 84 qtp348159759-84 RUNNABLE @ sun.nio.ch.KQueueArrayWrapper.kevent0(Native Method) 
    | +- 86 qtp348159759-86 RUNNABLE @ sun.nio.ch.KQueueArrayWrapper.kevent0(Native Method) 
    | +- 38 [email protected]@52bab8e{HTTP/1.1,[http/1.1]}{0.0.0.0:8080} RUNNABLE @ sun.nio.ch.ServerSocketChannelImpl.accept0(Native Method) prio=3 
     | +- 87 qtp348159759-87-lowPrioritySelector BLOCKED @ org.eclipse.jetty.io.ManagedSelector$SelectorProducer.produce(ManagedSelector.java:244) prio=1 
     | +- 92 qtp348159759-92 TIMED_WAITING @ sun.misc.Unsafe.park(Native Method) IDLE 
     | +- 32 qtp348159759-32 RUNNABLE @ sun.nio.ch.KQueueArrayWrapper.kevent0(Native Method) 
    | +- 34 qtp348159759-34 RUNNABLE @ sun.nio.ch.KQueueArrayWrapper.kevent0(Native Method) 
    | +- 88 qtp348159759-88 RUNNABLE @ sun.nio.ch.KQueueArrayWrapper.kevent0(Native Method) 
    | +- 39 qtp348159759-39 RUNNABLE @ sun.nio.ch.KQueueArrayWrapper.kevent0(Native Method) 
    | +- 37 qtp348159759-37-lowPrioritySelector BLOCKED @ org.eclipse.jetty.io.ManagedSelector$SelectorProducer.produce(ManagedSelector.java:244) prio=1 
     | +- 83 qtp348159759-83-lowPrioritySelector BLOCKED @ org.eclipse.jetty.io.ManagedSelector$SelectorProducer.produce(ManagedSelector.java:244) prio=1 
     | +- jobs 
     += [email protected]d - STARTED 
     | +- sun.misc.Unsafe.park(Native Method) 
     | +- java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215) 
     | +- java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2078) 
     | +- java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1093) 
     | +- java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809) 
     | +- java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1067) 
     | +- java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1127) 
     | +- java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) 
     | +- java.lang.Thread.run(Thread.java:745) 
     += [email protected]{HTTP/1.1,[http/1.1]}{0.0.0.0:8080} - STARTED 
     | +~ [email protected] - STARTED 
     | +~ qtp348159759{STARTED,10<=19<=200,i=1,q=0} - STARTED 
     | +~ [email protected]d - STARTED 
     | +- [email protected] 
     | += [email protected][HTTP/1.1] - STARTED 
     | | +- [email protected]{32768/8192,8192/8192,https://:8443,[]} 
     | += [email protected]282048ea - STARTED 
     | | += [email protected] id=0 keys=0 selected=0 id=0 
     | | | +- [email protected] keys=0 
     | | += [email protected] id=1 keys=0 selected=0 id=1 
     | | | +- [email protected] keys=0 
     | | += [email protected] id=2 keys=0 selected=0 id=2 
     | | | +- [email protected] keys=0 
     | | += [email protected] id=3 keys=0 selected=0 id=3 
     | |  +- [email protected] keys=0 
     | +- sun.nio.ch.ServerSocketChannelImpl[/0:0:0:0:0:0:0:0:8080] 
     | +- [email protected]@52bab8e{HTTP/1.1,[http/1.1]}{0.0.0.0:8080} 
     += [email protected]{SSL,[ssl, http/1.1]}{0.0.0.0:8443} - STARTED 
     | +~ [email protected] - STARTED 
     | +~ qtp348159759{STARTED,10<=20<=200,i=2,q=0} - STARTED 
     | +~ [email protected]d - STARTED 
     | +- [email protected] 
     | += [email protected]{SSL->http/1.1} - STARTED 
     | | += [email protected](file:///workspace/myApp/myApp-server/webapps/conf/iDS.keystore,null) trustAll=false 
     | |  +- Protocol Selections 
     | |  | +- Enabled (size=3) 
     | |  | | +- TLSv1 
     | |  | | +- TLSv1.1 
     | |  | | +- TLSv1.2 
     | |  | +- Disabled (size=2) 
     | |  |  +- SSLv2Hello - ConfigExcluded:'SSLv2Hello' 
     | |  |  +- SSLv3 - JreDisabled:java.security, ConfigExcluded:'SSLv3' 
     | |  +- Cipher Suite Selections 
     | |   +- Enabled (size=43) 
     | |   | [CIPHERS] 
     | |   +- Disabled (size=39) 
     | |    [CIPHERS] 
     | += [email protected][HTTP/1.1] - STARTED 
     | | +- [email protected]{32768/8192,8192/8192,https://:8443,[[email protected]]} 
     | += [email protected]14690caf - STARTED 
     | | += [email protected] id=0 keys=0 selected=0 id=0 
     | | | +- [email protected] keys=0 
     | | += [email protected] id=1 keys=0 selected=0 id=1 
     | | | +- [email protected] keys=0 
     | | += [email protected] id=2 keys=0 selected=0 id=2 
     | | | +- [email protected] keys=0 
     | | += [email protected] id=3 keys=0 selected=0 id=3 
     | |  +- [email protected] keys=0 
     | +- sun.nio.ch.ServerSocketChannelImpl[/0:0:0:0:0:0:0:0:8443] 
     | +- [email protected]@31de14e{SSL,[ssl, http/1.1]}{0.0.0.0:8443} 
     += [email protected]7e[[email protected]{/myContext,file:///workspace/myApp/myApp-server/webapps/myContext/,AVAILABLE}{/workspace/myApp/myApp-server/webapps}, [email protected]{/myContext_persistent,file:///workspace/myApp/myApp-server/data/my_persistent/,AVAILABLE}{/workspace/myApp/myApp-server/data}] - STARTED 
     | += [email protected]{/myContext,file:///workspace/myApp/myApp-server/webapps/myContext/,AVAILABLE}{/workspace/myApp/myApp-server/webapps} - STARTED 
     | | += org.eclipse.jetty.server.session.SessionHandler589427621==dftMaxIdleSec=1800 - STARTED 
     | | | += [email protected] - STARTED 
     | | | | +- [email protected] 
     | | | | += [email protected] - STARTED 
     | | | | | += [email protected] - STARTED 
     | | | | | += [email protected] - STARTED 
     | | | | | += [email protected]==org.eclipse.jetty.servlet.DefaultServlet,jsp=null,order=0,inst=true - STARTED 
     | | | | | | +- aliases=false 
     | | | | | | +- dirAllowed=true 
     | | | | | | +- maxCacheSize=256000000 
     | | | | | | +- maxCachedFileSize=200000000 
     | | | | | | +- welcomeServlets=false 
     | | | | | | +- useFileMappedBuffer=true 
     | | | | | | +- acceptRanges=true 
     | | | | | | +- etags=false 
     | | | | | | +- maxCachedFiles=2048 
     | | | | | | +- redirectWelcome=false 
     | | | | | += [email protected]==org.eclipse.jetty.jsp.JettyJspServlet,jsp=null,order=0,inst=true - STARTED 
     | | | | | | +- fork=false 
     | | | | | | +- compilerSourceVM=1.7 
     | | | | | | +- logVerbosityLevel=DEBUG 
     | | | | | | +- compilerTargetVM=1.7 
     | | | | | | +- scratchdir=/private/var/folders/8p/f__1hb6j0p5bq7ljqdkjg35h0000gn/T/jetty-0.0.0.0-8080-myContext-_myContext-any-6227228818832412481.dir/jsp 
     | | | | | | +- xpoweredBy=false 
     | | | | | +- [/]=>default 
     | | | | | +- [*.jsp, *.jspf, *.jspx, *.xsp, *.JSP, *.JSPF, *.JSPX, *.XSP]=>jsp 
     | | | | | += [email protected] - STARTED 
     | | | | | += [email protected] - STARTED 
     | | | | | += ISSSecurityFilter - STARTED 
     | | | | | += GzipFilter - STARTED 
     | | | | | | +- mimeTypes=text/plain,text/html,text/css,application/javascript,application/x-javascript,application/json 
     | | | | | += [email protected]==com.example.web.Dashboard,jsp=null,order=1,inst=true - STARTED 
     | | | | | | +- parameter=value 
     | | | | | += [email protected]==org.springframework.web.servlet.DispatcherServlet,jsp=null,order=-1,inst=false - STARTED 
     | | | | | [SERVLET MAPPING] 
     | | | | | +~ Jetty_WebSocketUpgradeFilter - STARTED 
     | | | | | +- [/*]/[]==1=>Jetty_WebSocketUpgradeFilter 
    | | | | | 
    | | | | +> null 
    | | | | +> null 
    | | | | +> null 
    | | | | +> [] 
    | | | | +> /*={*={RoleInfo[],Confidential}} 
    | | | | +> /={TRACE={RoleInfo,F,C[],None}, TRACE.omission={RoleInfo[],None}} 
    | | | +~ [email protected] 
    | | | += [email protected][evict=-1,removeUnloadable=false,saveOnCreate=false,saveOnInactiveEvict=false] - STARTED 
    | | | | += [email protected][passivating=false,graceSec=3600] - STARTED 
    | | | +~ [email protected]5[worker=node0] - STARTED 
    | | += [email protected] - STARTED 
    | | +~ [email protected]a8 - STOPPED 
    | | | 
    | | +> [email protected] 
    | | | [LIBS] 
    | | | +- [email protected] 
    | | +> Systemclasses [email protected]{/myContext,file:///workspace/myApp/myApp-server/webapps/myContext/,AVAILABLE}{/workspace/myApp/myApp-server/webapps} 
    | | | +- java. 
    | | | +- javax. 
    | | | +- org.eclipse.jetty.continuation. 
    | | | +- org.eclipse.jetty.jaas. 
    | | | +- org.eclipse.jetty.jmx. 
    | | | +- org.eclipse.jetty.jndi. 
    | | | +- org.eclipse.jetty.jsp.JettyJspServlet 
    | | | +- org.eclipse.jetty.servlet.DefaultServlet 
    | | | +- org.eclipse.jetty.servlets.PushCacheFilter 
    | | | +- org.eclipse.jetty.servlets.PushSessionCacheFilter 
    | | | +- org.eclipse.jetty.util.annotation. 
    | | | +- org.eclipse.jetty.util.log. 
    | | | +- org.eclipse.jetty.websocket. 
    | | | +- org.w3c. 
    | | | +- org.xml. 
    | | +> Serverclasses [email protected]{/myContext,file:///workspace/myApp/myApp-server/webapps/myContext/,AVAILABLE}{/workspace/myApp/myApp-server/webapps} 
    | | | +- -org.eclipse.jetty.alpn. 
    | | | +- -org.eclipse.jetty.apache. 
    | | | +- -org.eclipse.jetty.continuation. 
    | | | +- -org.eclipse.jetty.jaas. 
    | | | +- -org.eclipse.jetty.jmx. 
    | | | +- -org.eclipse.jetty.jndi. 
    | | | +- -org.eclipse.jetty.jsp. 
    | | | +- -org.eclipse.jetty.server.session.SessionData 
    | | | +- -org.eclipse.jetty.servlet.DefaultServlet 
    | | | +- -org.eclipse.jetty.servlet.NoJspServlet 
    | | | +- -org.eclipse.jetty.servlet.listener. 
    | | | +- -org.eclipse.jetty.servlets. 
    | | | +- -org.eclipse.jetty.util.annotation. 
    | | | +- -org.eclipse.jetty.util.log. 
    | | | +- -org.eclipse.jetty.websocket. 
    | | | +- org.eclipse.jdt. 
    | | | +- org.eclipse.jetty. 
    | | | +- org.objectweb.asm. 
    | | +> Configurations [email protected]{/myContext,file:///workspace/myApp/myApp-server/webapps/myContext/,AVAILABLE}{/workspace/myApp/myApp-server/webapps} 
    | | | +- [email protected] 
    | | | +- [email protected] 
    | | | +- [email protected] 
    | | | +- [email protected] 
    | | | +- [email protected] 
    | | +> Handler attributes [email protected]{/myContext,file:///workspace/myApp/myApp-server/webapps/myContext/,AVAILABLE}{/workspace/myApp/myApp-server/webapps} 
    | | | +- javax.servlet.context.tempdir=/private/var/folders/8p/f__1hb6j0p5bq7ljqdkjg35h0000gn/T/jetty-0.0.0.0-8080-myContext-_myContext-any-6227228818832412481.dir 
    | | | +- org.eclipse.jetty.websocket.server.WebSocketUpgradeFilter.SCI=WebSocketUpgradeFilter[configuration=[email protected]468b9d9f] 
    | | | +- org.eclipse.jetty.server.Executor=qtp348159759{STARTED,10<=20<=200,i=2,q=0} 
    | | | +- org.apache.catalina.jsp_classpath=[LIBS] 
    | | | +- javax.websocket.server.ServerCont[email protected]6fda53a8 
    | | +> Context attributes [email protected]{/myContext,file:///workspace/myApp/myApp-server/webapps/myContext/,AVAILABLE}{/workspace/myApp/myApp-server/webapps} 
    | | | +- org.eclipse.jetty.util.DecoratedObjectFactory=org.eclipse.jetty.util.DecoratedObjectFactory[decorators=1] 
    | | | +- com.sun.jsp.tagFileJarUrlsCache={} 
    | | | +- org.springframework.web.context.support.ServletContextSc[email protected]30be2c30 
    | | | +- org.springframework.web.context.WebApplicationContext.ROOT=Root WebApplicationContext: startup date [Thu Mar 02 22:05:59 ICT 2017]; root of context hierarchy 
    | | | +- resourceCache=ResourceCache[null,[email protected]]@647951169 
    | | | +- org.eclipse.jetty.websocket.server.NativeWebSocketConfiguration=[email protected]468b9d9f 
    | | | +- org.eclipse.jetty.websocket.server.WebSocketUpgradeFilter=WebSocketUpgradeFilter[configuration=[email protected]468b9d9f] 
    | | | +- com.sun.jsp.taglibraryCache={} 
    | | +> Initparams [email protected]{/myContext,file:///workspace/myApp/myApp-server/webapps/myContext/,AVAILABLE}{/workspace/myApp/myApp-server/webapps} 
    | |  +- contextConfigLocation=classpath:applicationContext.xml 
    | |  +- org.eclipse.jetty.servlet.Default.dirAllowed=false 
    | += [email protected]{/myContext_persistent,file:///workspace/myApp/myApp-server/data/my_persistent/,AVAILABLE}{/workspace/myApp/myApp-server/data} - STARTED 
    |  += org.eclipse.jetty.server.session.SessionHandler1013179752==dftMaxIdleSec=1800 - STARTED 
    |  | += [email protected] - STARTED 
    |  | | +- [email protected] 
    |  | | += [email protected] - STARTED 
    |  | | | += [email protected] - STARTED 
    |  | | | += [email protected] - STARTED 
    |  | | | += [email protected]==org.eclipse.jetty.servlet.DefaultServlet,jsp=null,order=0,inst=true - STARTED 
    |  | | | | +- aliases=false 
    |  | | | | +- dirAllowed=true 
    |  | | | | +- maxCacheSize=256000000 
    |  | | | | +- maxCachedFileSize=200000000 
    |  | | | | +- welcomeServlets=false 
    |  | | | | +- useFileMappedBuffer=true 
    |  | | | | +- acceptRanges=true 
    |  | | | | +- etags=false 
    |  | | | | +- maxCachedFiles=2048 
    |  | | | | +- redirectWelcome=false 
    |  | | | += [email protected]==org.eclipse.jetty.jsp.JettyJspServlet,jsp=null,order=0,inst=true - STARTED 
    |  | | | | +- fork=false 
    |  | | | | +- compilerSourceVM=1.7 
    |  | | | | +- logVerbosityLevel=DEBUG 
    |  | | | | +- compilerTargetVM=1.7 
    |  | | | | +- scratchdir=/private/var/folders/8p/f__1hb6j0p5bq7ljqdkjg35h0000gn/T/jetty-0.0.0.0-8080-my_persistent-_myContext_persistent-any-707911495794918084.dir/jsp 
    |  | | | | +- xpoweredBy=false 
    |  | | | +- [/]=>default 
    |  | | | +- [*.jsp, *.jspf, *.jspx, *.xsp, *.JSP, *.JSPF, *.JSPX, *.XSP]=>jsp 
    |  | | | 
    |  | | +> null 
    |  | | +> null 
    |  | | +> null 
    |  | | +> [] 
    |  | | +> /={TRACE={RoleInfo,F,C[],None}, TRACE.omission={RoleInfo[],None}} 
    |  | += [email protected][evict=-1,removeUnloadable=false,saveOnCreate=false,saveOnInactiveEvict=false] - STARTED 
    |  | | += [email protected][passivating=false,graceSec=3600] - STARTED 
    |  | +~ [email protected]5[worker=node0] - STARTED 
    |  += [email protected] - STARTED 
    |  | 
    |  +> [email protected] 
    |  | +- [email protected] 
    |  +> Systemclasses [email protected]{/myContext_persistent,file:///workspace/myApp/myApp-server/data/my_persistent/,AVAILABLE}{/workspace/myApp/myApp-server/data} 
    |  | +- java. 
    |  | +- javax. 
    |  | +- org.eclipse.jetty.continuation. 
    |  | +- org.eclipse.jetty.jaas. 
    |  | +- org.eclipse.jetty.jmx. 
    |  | +- org.eclipse.jetty.jndi. 
    |  | +- org.eclipse.jetty.jsp.JettyJspServlet 
    |  | +- org.eclipse.jetty.servlet.DefaultServlet 
    |  | +- org.eclipse.jetty.servlets.PushCacheFilter 
    |  | +- org.eclipse.jetty.servlets.PushSessionCacheFilter 
    |  | +- org.eclipse.jetty.util.annotation. 
    |  | +- org.eclipse.jetty.util.log. 
    |  | +- org.eclipse.jetty.websocket. 
    |  | +- org.w3c. 
    |  | +- org.xml. 
    |  +> Serverclasses [email protected]{/myContext_persistent,file:///workspace/myApp/myApp-server/data/my_persistent/,AVAILABLE}{/workspace/myApp/myApp-server/data} 
    |  | +- -org.eclipse.jetty.alpn. 
    |  | +- -org.eclipse.jetty.apache. 
    |  | +- -org.eclipse.jetty.continuation. 
    |  | +- -org.eclipse.jetty.jaas. 
    |  | +- -org.eclipse.jetty.jmx. 
    |  | +- -org.eclipse.jetty.jndi. 
    |  | +- -org.eclipse.jetty.jsp. 
    |  | +- -org.eclipse.jetty.server.session.SessionData 
    |  | +- -org.eclipse.jetty.servlet.DefaultServlet 
    |  | +- -org.eclipse.jetty.servlet.NoJspServlet 
    |  | +- -org.eclipse.jetty.servlet.listener. 
    |  | +- -org.eclipse.jetty.servlets. 
    |  | +- -org.eclipse.jetty.util.annotation. 
    |  | +- -org.eclipse.jetty.util.log. 
    |  | +- -org.eclipse.jetty.websocket. 
    |  | +- org.eclipse.jdt. 
    |  | +- org.eclipse.jetty. 
    |  | +- org.objectweb.asm. 
    |  +> Configurations [email protected]{/myContext_persistent,file:///workspace/myApp/myApp-server/data/my_persistent/,AVAILABLE}{/workspace/myApp/myApp-server/data} 
    |  | +- [email protected] 
    |  | +- [email protected] 
    |  | +- [email protected] 
    |  | +- [email protected] 
    |  | +- [email protected] 
    |  +> Handler attributes [email protected]{/myContext_persistent,file:///workspace/myApp/myApp-server/data/my_persistent/,AVAILABLE}{/workspace/myApp/myApp-server/data} 
    |  | +- javax.servlet.context.tempdir=/private/var/folders/8p/f__1hb6j0p5bq7ljqdkjg35h0000gn/T/jetty-0.0.0.0-8080-my_persistent-_myContext_persistent-any-707911495794918084.dir 
    |  | +- org.eclipse.jetty.server.Executor=qtp348159759{STARTED,10<=20<=200,i=2,q=0} 
    |  +> Context attributes [email protected]{/myContext_persistent,file:///workspace/myApp/myApp-server/data/my_persistent/,AVAILABLE}{/workspace/myApp/myApp-server/data} 
    |  | +- org.eclipse.jetty.util.DecoratedObjectFactory=org.eclipse.jetty.util.DecoratedObjectFactory[decorators=1] 
    |  | +- com.sun.jsp.tagFileJarUrlsCache={} 
    |  | +- resourceCache=ResourceCache[null,[email protected]]@1323290175 
    |  | +- com.sun.jsp.taglibraryCache={} 
    |  +> Initparams [email protected]{/myContext_persistent,file:///workspace/myApp/myApp-server/data/my_persistent/,AVAILABLE}{/workspace/myApp/myApp-server/data} 
    |   +- org.eclipse.jetty.servlet.Default.dirAllowed=false 
    += [email protected] - STARTED 
    +- {} 
    +- {} 
    +- {} 
    += [email protected]5[worker=node0] - STARTED 
    | += [email protected][interval=600000, ownscheduler=false] - STARTED 
    | 
    +> [email protected] 
     [LIBS] 
     +- [email protected]

上面的代码在Jetty 9.1.5.v20140505和Java 7中正常工作，但当升级到Jetty 9.4.1.v20170120和Java 8时失败。浏览器控制台报告404错误。

WebSocket connection to 'wss://localhost:8443/myContext/ws/communication/5/kbui/None' failed: Unexpected response code: 404

我在升级Jetty时错过了什么吗？
在此先感谢。

来源

2017-03-01 Khoa Bui

什么是你webContext初始化样子？ –

转储您的服务器（启动后）并在您的问题中报告其树。 'server.dumpStdErr（）;' –

我修改后添加服务器，Webapp上下文代码。 –

从你的设置来看，你会得...

wss://localhost:8443/myContext/ws/communication/5/kbui/None

你contextPath不/context，它实际上/myContext在您的设置。

你修剪出在垃圾堆里的servlet映射部分（这是重要的组成部分。嘿嘿）

但尝试手动添加从WebAppClassloader或Web应用程序的ServletContext中的外WebAppContext包含WSCommunication端点很可能将也是一个问题。

你有3种选择：

的JSR356自动方式

设置字节码扫描和注释发现你WebAppContext，让启动发现和自动加载WSCommunication端点。

将以下内容添加到您的webContext ...

webContext.setAttribute("org.eclipse.jetty.websocket.jsr356",Boolean.TRUE); 

webContext.setConfigurations(new Configuration[] { 
      new AnnotationConfiguration(), 
      new WebXmlConfiguration(), 
      new WebInfConfiguration(), 
      new PlusConfiguration(), 
      new MetaInfConfiguration(), 
      new FragmentConfiguration(), 
      new EnvConfiguration()});

并添加jetty-annotations依赖于你的项目。

的JSR356手动方式

使用javax.websocket.server.ServerApplicationConfig来报告WSCommunication为可用以从web应用程序的启动中加入。

Servlet规范手工方式

这是最简单的方法。创建javax.servlet.ServletContextListener，增加了WSCommunication端点到ServerContainer

public class MyContextListener implements ServletContextListener 
{ 
    @Override 
    public void contextDestroyed(ServletContextEvent sce) 
    { 
    } 

    @Override 
    public void contextInitialized(ServletContextEvent sce) 
    { 
     ServerContainer container = (ServerContainer)sce.getServletContext() 
        .getAttribute(ServerContainer.class.getName()); 

     try 
     { 
      container.addEndpoint(WSCommunication.class); 
     } 
     catch (DeploymentException e) 
     { 
      throw new RuntimeException("Unable to add endpoint",e); 
     } 
    } 
}

来源

2017-03-02 20:35:10

我尝试＃1的方法，它的作用就像一个魅力。非常感谢。 –

关于以前的代码如何在9.1.5上工作，你的意思是我设置websocket错误，但9.1.5仍然接受，到9.4.1 Jetty服务器更严格，然后拒绝。对？ –

另一个问题，在现实中，我的服务器可能支持多个上下文，所有3种方法仍然可以与多个WebAppContext一起使用？ –

Websocket JSR-356与Jetty失败9.4.1

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