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