Sorry it missed getting into the documentation beyond the
readme-3.3.1, but Tomcat 3.3.1 now supports a SingleThreadModel
pooling, which is enabled by default. Thus, this is normal
behavior. If you wish to disable the pooling, modify the
server.xml to contain:
<Servlet22Interceptor useSTMPool="false" />
Cheers,
Larry
> -----Original Message-----
> From: Andy Eastham [mailto:[EMAIL PROTECTED]]
> Sent: Wednesday, May 15, 2002 7:24 AM
> To: Tomcat Users List
> Subject: RE: HTTP Tunnelling problem?? Please help
>
>
> Stuart,
>
> You're extending Thread - everything that is mapped to a
> Tomcat request must
> extend HttpServlet. Tomcat is trying to cast your TestTunnel class to
> HttpServlet, which is failing.
>
> Andy
>
> > -----Original Message-----
> > From: Stuart Stephen [mailto:[EMAIL PROTECTED]]
> > Sent: 15 May 2002 11:56
> > To: Tomcat Users List
> > Subject: HTTP Tunnelling problem?? Please help
> >
> >
> >
> > Hello all,
> >
> > I'm having problems trying to write a HttpTunnel for java objects
> > in Tomcat.
> > For some reason I'm getting a ClassCastException. I don't
> understand this.
> > I've even tried forcing it as you can see in my code below.
> The exception
> > that i'm getting is not very clear and i can't put my finger on it.
> >
> > I have attached the exception from Apache/Tomcat and the code for
> > the tunnel
> > at the bottom of this email. If you can help I would be
> very grateful.
> >
> > Regards,
> > Stuart Stephen
> >
> > ------------------------------------------------------------------
> > ----------
> > ----
> >
> > Apache Tomcat/4.0.1 - HTTP Status 500 - Internal Server Error
> >
> > ------------------------------------------------------------------
> > ----------
> > ----
> >
> > type Exception report
> >
> > message Internal Server Error
> >
> > description The server encountered an internal error (Internal
> > Server Error)
> > that prevented it from fulfilling this request.
> >
> > exception
> >
> > java.lang.ClassCastException: TestTunnel
> > at
> >
> org.apache.catalina.core.StandardWrapper.load(StandardWrapper.
> java:820)
> > at
> > org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.
> > java:615)
> > at
> > org.apache.catalina.servlets.InvokerServlet.serveRequest(InvokerSe
> > rvlet.java
> > :396)
> > at
> >
> org.apache.catalina.servlets.InvokerServlet.doGet(InvokerServl
> et.java:180)
> > at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
> > at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
> > at
> > org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(A
> > pplication
> > FilterChain.java:247)
> > at
> > org.apache.catalina.core.ApplicationFilterChain.doFilter(Applicati
> > onFilterCh
> > ain.java:193)
> > at
> > org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapp
> > erValve.ja
> > va:243)
> > at
> > org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipel
> > ine.java:5
> > 66)
> > at
> > org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.
> > java:472)
> > at
> >
> org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
> > at
> > org.apache.catalina.core.StandardContextValve.invoke(StandardConte
> > xtValve.ja
> > va:201)
> > at
> > org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipel
> > ine.java:5
> > 66)
> > at
> > org.apache.catalina.valves.CertificatesValve.invoke(CertificatesVa
> > lve.java:2
> > 46)
> > at
> > org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipel
> > ine.java:5
> > 64)
> > at
> > org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.
> > java:472)
> > at
> >
> org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
> > at
> >
> org.apache.catalina.core.StandardContext.invoke(StandardContex
> t.java:2344)
> > at
> > org.apache.catalina.core.StandardHostValve.invoke(StandardHostValv
> > e.java:164
> > )
> > at
> > org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipel
> > ine.java:5
> > 66)
> > at
> > org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispat
> > cherValve.
> > java:170)
> > at
> > org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipel
> > ine.java:5
> > 64)
> > at
> > org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValv
> > e.java:170
> > )
> > at
> > org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipel
> > ine.java:5
> > 64)
> > at
> >
> org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValv
> e.java:462)
> > at
> > org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipel
> > ine.java:5
> > 64)
> > at
> > org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.
> > java:472)
> > at
> >
> org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
> > at
> > org.apache.catalina.core.StandardEngineValve.invoke(StandardEngine
> > Valve.java
> > :163)
> > at
> > org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipel
> > ine.java:5
> > 66)
> > at
> > org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.
> > java:472)
> > at
> >
> org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
> > at
> >
> org.apache.ajp.tomcat4.Ajp13Processor.process(Ajp13Processor.java:371)
> > at
> > org.apache.ajp.tomcat4.Ajp13Processor.run(Ajp13Processor.java:424)
> > at java.lang.Thread.run(Unknown Source)
> >
> > -----------------------
> >
> > import javax.servlet.*;
> > import javax.servlet.http.*;
> > import javax.servlet.ServletException.*;
> > import javax.servlet.UnavailableException.*;
> > import java.lang.Exception.*;
> > import java.io.*;
> > import java.util.*;
> > import java.net.*;
> >
> > public class TestTunnel extends Thread {
> >
> > // applet connections
> > ObjectOutputStream objOut = null;
> > ObjectInputStream objIn = null;
> >
> > // chatserver connections
> > Socket socket = null;
> > ObjectOutputStream sockObjOut = null;
> > ObjectInputStream sockObjIn = null;
> >
> > ToApplet app = null;
> > ToServer ser = null;
> >
> > protected void service(HttpServletRequest req,
> HttpServletResponse res)
> > throws ServletException,IOException {
> > try {
> > // get data stream from applet
> > System.err.println("start of servlet");
> >
> > objIn = new ObjectInputStream(req.getInputStream());
> > objOut = new ObjectOutputStream(res.getOutputStream());
> >
> > // create socket to chat server and the streams
> > socket = new Socket("127.0.0.1", 3000);
> > sockObjOut = new ObjectOutputStream(socket.getOutputStream());
> > sockObjIn = new ObjectInputStream(socket.getInputStream());
> >
> > app = new ToApplet((TestTunnel)this);
> > ser = new ToServer((TestTunnel)this);
> >
> > System.err.println("end of servlet");
> > }
> > catch(Exception e) {
> > e.printStackTrace();
> > }
> > }
> >
> > public void destroy() {
> > try {
> > objIn.close();
> > objOut.close();
> > sockObjIn.close();
> > sockObjOut.close();
> > socket.close();
> > }
> > catch(Exception e) {
> > e.printStackTrace();
> > }
> > }
> >
> > private class ToApplet extends Thread {
> > TestTunnel parent = null;
> >
> > public ToApplet(TestTunnel parent) {
> > try {
> > this.parent = parent;
> > this.start();
> > }
> > catch(Exception e) {
> > e.printStackTrace();
> > }
> > }
> >
> > public void run() {
> > try {
> > Object obj = null;
> > while((obj=parent.sockObjIn.readObject())!=null) {
> > write(obj);
> > }
> > }
> > catch(Exception e) {
> > e.printStackTrace();
> > }
> > }
> >
> > public void write(Object msg) {
> > try {
> > parent.objOut.writeObject(msg);
> > parent.objOut.flush();
> > parent.objOut.reset();
> > }
> > catch(Exception e) {
> > e.printStackTrace();
> > }
> > }
> > }
> >
> > private class ToServer extends Thread {
> > TestTunnel parent = null;
> >
> > public ToServer(TestTunnel parent) {
> > try {
> > this.parent = parent;
> > this.start();
> > }
> > catch(Exception e) {
> > e.printStackTrace();
> > }
> > }
> >
> > public void run() {
> > try {
> > Object obj = null;
> > while((obj=parent.objIn.readObject())!=null) {
> > write(obj);
> > }
> > }
> > catch(Exception e) {
> > e.printStackTrace();
> > }
> > }
> >
> > public void write(Object msg) {
> > try {
> > parent.sockObjOut.writeObject(msg);
> > parent.sockObjOut.flush();
> > parent.sockObjOut.reset();
> > }
> > catch(Exception e) {
> > e.printStackTrace();
> > }
> > }
> > }
> > }
> >
> >
> >
> > --
> > To unsubscribe, e-mail:
> > <mailto:[EMAIL PROTECTED]>
> > For additional commands, e-mail:
> > <mailto:[EMAIL PROTECTED]>
> >
> >
>
>
>
> --
> To unsubscribe, e-mail:
> <mailto:tomcat-user-> [EMAIL PROTECTED]>
> For
> additional commands,
> e-mail: <mailto:[EMAIL PROTECTED]>
>
--
To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]>
For additional commands, e-mail: <mailto:[EMAIL PROTECTED]>
