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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