[opencms-dev] Flex and Servlet API 2.2

[Publius Ismanescu]

Hi Alexander Kandzior

I would appreciate if you can help me out with this.
I know flex is using Servlet 2.3. but I have to make it work with 
servlet 2.2.
My plan is to change the Flex classes to use the servlet 2.2 API's
If you remember the problems you had when you were writing flex I would 
appreciate if you can mention some of the major ones.
So far , what I did , was to change the CmsFlexRequest and 
CmsFlexResponse to implement the interfaces rather than the wrapper 
class from Servlet 2.3. an some other changes

I am getting a cast exception when I call the index.jsp.

Can you please make some comments on this , are there some problems with 
using servlet 2.2 so you decided to implement using the servlet 2.3 or 
it is posible to do it even with servlet 2.2 but maybe more diffficult 
that the way you did it (with Servlet 2.3)

Thank you
Publius Ismanescu


javax.servlet.ServletException: Resource loader error in file '/index.jsp'

Root cause:
java.lang.ClassCastException: com.opencms.flex.cache.CmsFlexRequest
    at 
org.apache.tomcat.facade.RequestDispatcherImpl.doInclude(RequestDispatcherImpl.java:300)
    at 
org.apache.tomcat.facade.RequestDispatcherImpl.include(RequestDispatcherImpl.java:189)
    at 
com.opencms.flex.cache.CmsFlexRequestDispatcher.include(CmsFlexRequestDispatcher.java:131)
    at 
com.opencms.flex.cache.CmsFlexRequestDispatcher.include(CmsFlexRequestDispatcher.java:169)
    at com.opencms.flex.CmsJspLoader.service(CmsJspLoader.java:946)
    at 
com.opencms.flex.cache.CmsFlexRequestDispatcher.include(CmsFlexRequestDispatcher.java:257)
    at com.opencms.flex.CmsJspLoader.load(CmsJspLoader.java:554)
    at com.opencms.flex.CmsJspLoader.initlaunch(CmsJspLoader.java:226)
    at com.opencms.core.OpenCms.showResource(OpenCms.java:840)
    at 
com.opencms.core.OpenCmsHttpServlet.doGet(OpenCmsHttpServlet.java:282)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java)
    at 
org.apache.tomcat.facade.ServletHandler.doService(ServletHandler.java:574)
    at org.apache.tomcat.core.Handler.invoke(Handler.java:322)
    at org.apache.tomcat.core.Handler.service(Handler.java:235)
    at 
org.apache.tomcat.facade.ServletHandler.service(ServletHandler.java:485)
    at 
org.apache.tomcat.core.ContextManager.internalService(ContextManager.java:917)
    at 
org.apache.tomcat.core.ContextManager.service(ContextManager.java:833)
    at 
org.apache.tomcat.modules.server.Http10Interceptor.processConnection(Http10Interceptor.java:176)
    at 
org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:494)
    at 
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:516)
    at java.lang.Thread.run(Thread.java:479)

--------------- End of root cause.

    at com.opencms.flex.CmsJspLoader.service(CmsJspLoader.java:956)
    at 
com.opencms.flex.cache.CmsFlexRequestDispatcher.include(CmsFlexRequestDispatcher.java:257)
    at com.opencms.flex.CmsJspLoader.load(CmsJspLoader.java:554)
    at com.opencms.flex.CmsJspLoader.initlaunch(CmsJspLoader.java:226)
    at com.opencms.core.OpenCms.showResource(OpenCms.java:840)
    at 
com.opencms.core.OpenCmsHttpServlet.doGet(OpenCmsHttpServlet.java:282)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java)
    at 
org.apache.tomcat.facade.ServletHandler.doService(ServletHandler.java:574)
    at org.apache.tomcat.core.Handler.invoke(Handler.java:322)
    at org.apache.tomcat.core.Handler.service(Handler.java:235)
    at 
org.apache.tomcat.facade.ServletHandler.service(ServletHandler.java:485)
    at 
org.apache.tomcat.core.ContextManager.internalService(ContextManager.java:917)
    at 
org.apache.tomcat.core.ContextManager.service(ContextManager.java:833)
    at 
org.apache.tomcat.modules.server.Http10Interceptor.processConnection(Http10Interceptor.java:176)
    at 
org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:494)
    at 
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:516)
    at java.lang.Thread.run(Thread.java:479)