Thanks for replying,
1. I do not have any filters configured.
2. Yes my web.xml does mark themselves as adhering to the Sevlet 3.0
specification
3. Yes apps under http://localhost:8080/examples/jsp/ also does NOT work,
they also throw up the same exception.
Here is the stack trace
java.lang.IllegalStateException: Not supported.
at org.apache.catalina.connector.Request.startAsync(Request.java:1664)
at
org.apache.catalina.connector.RequestFacade.startAsync(RequestFacade.java:1030)
at
javax.servlet.ServletRequestWrapper.startAsync(ServletRequestWrapper.java:379)
at test.comet.NewServlet.processRequest(NewServlet.java:75)
at test.comet.NewServlet.doGet(NewServlet.java:98)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at
org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:393)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:225)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:169)
at
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)
at
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:927)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
at
org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:999)
at
org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:565)
at
org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:1812)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
at java.lang.Thread.run(Thread.java:722)
web.xml complete contents:
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="3.0" xmlns="http://java.sun.com/xml/ns/javaee";
xmlns:j2ee="http://java.sun.com/xml/ns/javaee"; xmlns:xsi="
http://www.w3.org/2001/XMLSchema-instance"; xsi:schemaLocation="
http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd";>
<servlet>
<servlet-name>NewServlet</servlet-name>
<servlet-class>test.comet.NewServlet</servlet-class>
<async-supported>true</async-supported>
</servlet>
<servlet-mapping>
<servlet-name>NewServlet</servlet-name>
<url-pattern>/NewServlet</url-pattern>
</servlet-mapping>
<session-config>
<session-timeout>
30
</session-timeout>
</session-config>
</web-app>
On Mon, May 14, 2012 at 4:55 PM, Konstantin Kolinko
<[email protected]>wrote:
> 2012/5/14 rohit patil <[email protected]>:
> > Hi All,
> > I have written the below piece of code (NewServlet.java) to try the
> Servlet
> > 3.0 async feature.
> > But it is failing by throwing up the below mentioned error.
> >
> > Tomcat Version: 7.0.27 (32 bit)
> > OS: Windows 7
> >
> > java.lang.IllegalStateException: Not supported.
> > at org.apache.catalina.connector.Request.startAsync(Request.java:1664)
> > at
> >
> org.apache.catalina.connector.RequestFacade.startAsync(RequestFacade.java:1030)
> > at
> >
> javax.servlet.ServletRequestWrapper.startAsync(ServletRequestWrapper.java:379)
> >
> > code snippet:
> > try{
> > boolean asynSupported = request.isAsyncSupported();
> > System.out.println("asynSupported: "+asynSupported);
> > AsyncContext async = request.startAsync(request,
> > response); *//exception
> > is thrown at this point
> > * messageSender.addConnection(async);
> > AlertListener alertListener = new
> AlertListener(messageSender);
> > async.start(alertListener);
> >
> > } catch (Throwable thr){
> > thr.printStackTrace();
> > }
> >
> > web.xml snippet:
> >
> > <servlet>
> > <servlet-name>NewServlet</servlet-name>
> >
> > <servlet-class>sample.comet.NewServlet</servlet-class>
> > <async-supported>true</async-supported>
> > </servlet>
>
>
> 1. You must have the same setting for all all filters in your request
> processing chain.
>
> Your stacktrace from IllegalStateException should have mentioned them.
>
> All the valves in the chain should also support async processing (that
> is declared programmatically, via Valve.isAsyncSupported() ).
>
> 2. Your web.xml (and conf/web.xml) should mark themselves as adhering
> to the Sevlet 3.0 specification (with version and probably with
> xsi:schemaLocation attributes on the root element).
>
> > server.xml snippet :
> >
> > <Connector connectionTimeout="20000" port="8084"
> > protocol="org.apache.coyote.http11.Http11NioProtocol"
> redirectPort="8443"/>
> >
> > Even the sample program "AsyncRequest" that comes with tomcat does not
> > work. :-( it also throws the same exception.
>
> You mean those listed at the bottom of the following page:
> http://localhost:8080/examples/jsp/
>
> I've just tested and those examples work with Nio connector in 7.0.27.
> I am on WinXP.
>
> Best regards,
> Konstantin Kolinko
>
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