Those things should be provided by jetty and not packaged in the war. The
classcast means different classloaders. Just exclude them from the jar. If
using maven - use provided scope?
On 30 Dec 2015 14:04, "John Jiang" <[email protected]> wrote:
> Hi guys,
> I'm using Jetty-9.3.5.
> My web app includes a pretty simple Servlet, as shown as the below,
> public class ServerPushServlet extends HttpServlet {
>
> protected void doGet(HttpServletRequest request,
> HttpServletResponse response) throws ServletException,
> IOException {
> System.out.println("request=" + request);
> Request baseRequest = (Request) request;
> System.out.println("baseRequest=" + baseRequest);
> }
> }
>
> When I try to access this Servlet via browser, the output in console is
> the below,
> *request=Request(GET //localhost:9020/push/primary)@63206451*
> 2015-12-30 19:47:11.471:WARN:oejs.ServletHandler:qtp1104106489-15: /test
> *java.lang.ClassCastException: org.eclipse.jetty.server.Request cannot be
> cast to org.eclipse.jetty.server.Request*
> at httptest.ServerPushServlet.doGet(ServerPushServlet.java:19)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:687)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
> at
> org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:821)
> at
> org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:583)
> at
> org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
> at
> org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:524)
> at
> org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:226)
> at
> org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1158)
> at
> org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:511)
> at
> org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185)
> at
> org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1090)
> at
> org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
> at
> org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:213)
> at
> org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:109)
> at
> org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:119)
> at org.eclipse.jetty.server.Server.handle(Server.java:517)
> at
> org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:306)
> at
> org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:242)
> at
> org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:261)
> at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:95)
> at
> org.eclipse.jetty.io.SelectChannelEndPoint$2.run(SelectChannelEndPoint.java:75)
> at
> org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.produceAndRun(ExecuteProduceConsume.java:213)
> at
> org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.run(ExecuteProduceConsume.java:147)
> at
> org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:654)
> at
> org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:572)
> at java.lang.Thread.run(Thread.java:745)
>
> It seems that the "request" object is an instance of
> org.eclipse.jetty.server.Request. But why ClassCastException is thrown?
> In fact, the exception message also indicates the type of "request" is
> org.eclipse.jetty.server.Request.
>
> The following jar files are in my war (and only this war in my base),
>
>
>
>
>
> *jetty-http-9.3.5.v20151012.jarjetty-server-9.3.5.v20151012.jarjetty-servlets-9.3.5.v20151012.jarjetty-util-9.3.5.v20151012.jar*
>
> How to resolve this problem?
>
> Thanks!
>
> Sha
>
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