Re: NotSerializableException from PoolingDataSource

[Yasushi Okubo]

Dennis Byrne wrote:

You'll want to make sure the application is not trying to serialize a class w/out a no-args constructor.

Dennis Byrne

  

Thanks Dennis. 

I see, but could you advise me how I can achieve that ?  It sounds that location of t:savestate could be a matter, but I am not sure about it.

Thanks,
yasushi

-----Original Message-----
From: Yasushi Okubo [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, May 3, 2006 01:36 PM
To: 'MyFaces Discussion'
Subject: Re: NotSerializableException from PoolingDataSource

Dennis Byrne wrote:

    

Don't serialize a data sources ;)

Use the "transient" key word.

Dennis Byrne

 

      

Thanks for the tip Dennis, but I started seeing another error after 
adding transient before DataSource:
java.io.InvalidClassException: org.nesg.plims.QueryBean; no valid 
constructor

I am not sure why it is saying no valid constructor, am I using 
transient properly ?
private transient DataSource ds;

Thanks,
yasushi

    

-----Original Message-----
From: Yasushi Okubo [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, May 3, 2006 11:55 AM
To: 'MyFaces Discussion'
Subject: NotSerializableException from PoolingDataSource


Hi, experts

My backing bean needs to connect to database through connection 
pool/DataSource  on  tomcat (v5.5.16).   Now  I changed my backing beans 
   

        

>from session to request scope trying to use t:savestate tag, then I made 
 

      

them serializable, but it started  giving exceptions 
[NotSerializableException for 
PoolingDataSource$PoolGuardConnectionWrapper}.  So,  Are there any other 
options or work around  or am I doing something wrong ?

Thanks for your help,
yasushi

Servlet.service() for servlet Faces Servlet threw exception
javax.faces.FacesException: java.io.NotSerializableException: 
org.apache.tomcat.dbcp.dbcp.PoolingDataSource$PoolGuardConnectionWrapper
      at 
org.apache.myfaces.context.servlet.ServletExternalContextImpl.dispatch(ServletExternalContextImpl.java:421)
      at 
org.apache.myfaces.application.jsp.JspTilesViewHandlerImpl.dispatch(JspTilesViewHandlerImpl.java:233)
      at 
org.apache.myfaces.application.jsp.JspTilesViewHandlerImpl.renderView(JspTilesViewHandlerImpl.java:219)
      at 
org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:352)
      at javax.faces.webapp.FacesServlet.service(FacesServlet.java:107)
      at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
      at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
      at 
org.apache.myfaces.component.html.util.ExtensionsFilter.doFilter(ExtensionsFilter.java:122)
      at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
      at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
      at 
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
      at 
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
      at 
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
      at 
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
      at 
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
      at 
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
      at 
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
      at 
org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
      at 
org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
      at 
org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
      at 
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
      at java.lang.Thread.run(Thread.java:595)
Caused by: org.apache.jasper.JasperException: 
java.io.NotSerializableException: 
org.apache.tomcat.dbcp.dbcp.PoolingDataSource$PoolGuardConnectionWrapper
      at 
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:510)
      at 
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:393)
      at 
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
      at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
      at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
      at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
      at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
      at 
org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:672)
      at 
org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:463)
      at 
org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:398)
      at 
org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:301)
      at 
org.apache.myfaces.context.servlet.ServletExternalContextImpl.dispatch(ServletExternalContextImpl.java:415)
      ... 21 more