Jetty deployment: Unable to compile class for JSP - jetty

Question

I tried to deploy to and run Jetty from an Ant-script, but get the following error:
[jetty.run] 2016-06-25 09:16:54.333: Starting web application null
[jetty.run] [main] WARN org.eclipse.jetty.annotations.ServletContainerInitializersStarter -
[jetty.run] javax.servlet.ServletException: Not running on Jetty, WebSocket+CDI support unavailable
[jetty.run] at org.eclipse.jetty.cdi.websocket.WebSocketCdiInitializer.onStartup(WebSocketCdiInitializer.java:49)
[jetty.run] at org.eclipse.jetty.plus.annotation.ContainerInitializer.callStartup(ContainerInitializer.java:140)
[jetty.run] at org.eclipse.jetty.annotations.ServletContainerInitializersStarter.doStart(ServletContainerInitializersStarter.java:63)
[jetty.run] at
...
It work without deployment, but with the war-file this happens. What is corrupt?
UPDATE:
Added
<listener>
<listener-class>org.jboss.weld.environment.servlet.Listener</listener-class>
</listener>
<resource-env-ref>
<description>Object factory for the CDI Bean Manager</description>
<resource-env-ref-name>BeanManager</resource-env-ref-name>
<resource-env-ref-type>javax.enterprise.inject.spi.BeanManager</resource-env-ref-type>
</resource-env-ref>
to web.xml andweld jars to lib. Now I get this:
java.lang.reflect.InvocationTargetException
[jetty.run] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
[jetty.run] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
[jetty.run] at ...
[jetty.run] Caused by: java.lang.IllegalStateException: Nothing to bind for name BeanManager
UPDATE 2:
Ok, I didn't need the extra things in my web.xml. Instead I had forgot to add
<typedef name="webApp" classname="org.eclipse.jetty.ant.AntWebAppContext" classpathref="classpath" loaderref="jetty.loader"/>
to build.xml. I can now deploy and run jetty, but can't process JSP files:
[jetty.run] [qtp1387380406-14] WARN org.eclipse.jetty.servlet.ServletHandler -
[jetty.run] org.apache.jasper.JasperException: Unable to compile class for JSP
[jetty.run] at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:600) ...
Why is this so?

Answer 1

Remove the various jetty cdi jar files from your project.
Those are designed specifically for jetty-distribution use, and are inappropriate for embedded-jetty.
Use the weld jars directly in your war file, along with the various recommended configurations that the weld project documentation tell you about.