subsequently when I hit the HOME link This is what I get on browser
An unexpected application exception has occurred. Render queue error in BeginRender[Home:gallery.outputraw_0]: Failure reading parameter 'value' of component Home:gallery.outputraw_0: org.apache.tapestry5.ioc.internal.util.TapestryException This is what I get on console [ERROR] TapestryModule.RequestExceptionHandler Processing of request failed with uncaught exception: Render queue error in BeginRender[Home:gallery.outputraw_0] : Failure reading parameter 'value' of component Home:gallery.outputraw_0: org.a pache.tapestry5.ioc.internal.util.TapestryException org.apache.tapestry5.internal.services.RenderQueueException: Render queue error in BeginRender[Home:gallery.outputraw_0]: Failure reading parameter 'value' of c omponent Home:gallery.outputraw_0: org.apache.tapestry5.ioc.internal.util.Tapest ryException [at classpath:org/tynamo/examples/hibernatesecurity/components/Galle ry.tml, line 74] at org.apache.tapestry5.internal.services.RenderQueueImpl.run(RenderQueu eImpl.java:81) at org.apache.tapestry5.internal.services.PageRenderQueueImpl.render(Pag eRenderQueueImpl.java:124) at $PageRenderQueue_a45f0fe136e2.render(Unknown Source) at $PageRenderQueue_a45f0fe136e1.render(Unknown Source) at org.apache.tapestry5.internal.services.MarkupRendererTerminator.rende rMarkup(MarkupRendererTerminator.java:37) at net.atos.kawwaportal.components.services.KawwaPortalComponentsModule$ 1.renderMarkup(KawwaPortalComponentsModule.java:91) at $MarkupRenderer_a45f0fe136e6.renderMarkup(Unknown Source) at org.apache.tapestry5.beanvalidator.BeanValidatorModule$2.renderMarkup (BeanValidatorModule.java:119) at $MarkupRenderer_a45f0fe136e6.renderMarkup(Unknown Source) at org.apache.tapestry5.services.TapestryModule$31.renderMarkup(Tapestry Module.java:1994) at $MarkupRenderer_a45f0fe136e6.renderMarkup(Unknown Source) at org.apache.tapestry5.services.TapestryModule$30.renderMarkup(Tapestry Module.java:1978) at $MarkupRenderer_a45f0fe136e6.renderMarkup(Unknown Source) at net.atos.kawwaportal.components.services.KawwaPortalComponentsModule$ 3.renderMarkup(KawwaPortalComponentsModule.java:117) at $MarkupRenderer_a45f0fe136e6.renderMarkup(Unknown Source) at org.apache.tapestry5.services.TapestryModule$29.renderMarkup(Tapestry Module.java:1960) at $MarkupRenderer_a45f0fe136e6.renderMarkup(Unknown Source) at org.apache.tapestry5.services.TapestryModule$28.renderMarkup(Tapestry Module.java:1945) at $MarkupRenderer_a45f0fe136e6.renderMarkup(Unknown Source) at org.apache.tapestry5.services.TapestryModule$27.renderMarkup(Tapestry Module.java:1931) at $MarkupRenderer_a45f0fe136e6.renderMarkup(Unknown Source) at org.got5.tapestry5.jquery.services.js.JSModule$1.renderMarkup(JSModul e.java:40) at $MarkupRenderer_a45f0fe136e6.renderMarkup(Unknown Source) at org.apache.tapestry5.services.TapestryModule$26.renderMarkup(Tapestry Module.java:1913) at $MarkupRenderer_a45f0fe136e6.renderMarkup(Unknown Source) at org.apache.tapestry5.services.TapestryModule$25.renderMarkup(Tapestry Module.java:1894) at $MarkupRenderer_a45f0fe136e6.renderMarkup(Unknown Source) at net.atos.kawwaportal.components.services.KawwaPortalComponentsModule$ 2.renderMarkup(KawwaPortalComponentsModule.java:101) at $MarkupRenderer_a45f0fe136e6.renderMarkup(Unknown Source) at $MarkupRenderer_a45f0fe136e0.renderMarkup(Unknown Source) at org.apache.tapestry5.internal.services.PageMarkupRendererImpl.renderP ageMarkup(PageMarkupRendererImpl.java:47) at $PageMarkupRenderer_a45f0fe136de.renderPageMarkup(Unknown Source) at org.apache.tapestry5.internal.services.PageResponseRendererImpl.rende rPageResponse(PageResponseRendererImpl.java:67) at $PageResponseRenderer_a45f0fe13661.renderPageResponse(Unknown Source) at org.apache.tapestry5.internal.services.PageRenderRequestHandlerImpl.h andle(PageRenderRequestHandlerImpl.java:64) at org.apache.tapestry5.services.TapestryModule$38.handle(TapestryModule .java:2222) at $PageRenderRequestHandler_a45f0fe13663.handle(Unknown Source) at $PageRenderRequestHandler_a45f0fe1365d.handle(Unknown Source) at org.apache.tapestry5.internal.services.ComponentRequestHandlerTermina tor.handlePageRender(ComponentRequestHandlerTerminator.java:48) at org.apache.tapestry5.services.InitializeActivePageName.handlePageRend er(InitializeActivePageName.java:47) at $ComponentRequestHandler_a45f0fe1365e.handlePageRender(Unknown Source ) at org.tynamo.security.SecurityComponentRequestFilter.handlePageRender(S ecurityComponentRequestFilter.java:49) at $ComponentRequestFilter_a45f0fe1365b.handlePageRender(Unknown Source) at $ComponentRequestHandler_a45f0fe1365e.handlePageRender(Unknown Source ) at $ComponentRequestHandler_a45f0fe1361b.handlePageRender(Unknown Source ) at org.apache.tapestry5.internal.services.PageRenderDispatcher.dispatch( PageRenderDispatcher.java:45) at $Dispatcher_a45f0fe13622.dispatch(Unknown Source) at $Dispatcher_a45f0fe13619.dispatch(Unknown Source) at org.apache.tapestry5.services.TapestryModule$RequestHandlerTerminator .service(TapestryModule.java:302) at org.apache.tapestry5.internal.services.RequestErrorFilter.service(Req uestErrorFilter.java:26) at $RequestHandler_a45f0fe1361a.service(Unknown Source) at org.apache.tapestry5.services.TapestryModule$3.service(TapestryModule .java:902) at $RequestHandler_a45f0fe1361a.service(Unknown Source) at org.apache.tapestry5.services.TapestryModule$2.service(TapestryModule .java:892) at $RequestHandler_a45f0fe1361a.service(Unknown Source) at org.apache.tapestry5.internal.services.StaticFilesFilter.service(Stat icFilesFilter.java:90) at $RequestHandler_a45f0fe1361a.service(Unknown Source) at $RequestHandler_a45f0fe135e4.service(Unknown Source) at org.apache.tapestry5.services.TapestryModule$HttpServletRequestHandle rTerminator.service(TapestryModule.java:253) at org.apache.tapestry5.internal.gzip.GZipFilter.service(GZipFilter.java :53) at $HttpServletRequestHandler_a45f0fe135e6.service(Unknown Source) at org.got5.tapestry5.jquery.services.AjaxUploadServletRequestFilter.ser vice(AjaxUploadServletRequestFilter.java:26) at $HttpServletRequestHandler_a45f0fe135e6.service(Unknown Source) at org.apache.tapestry5.upload.internal.services.MultipartServletRequest Filter.service(MultipartServletRequestFilter.java:44) at $HttpServletRequestHandler_a45f0fe135e6.service(Unknown Source) at org.apache.tapestry5.internal.services.IgnoredPathsFilter.service(Ign oredPathsFilter.java:62) at $HttpServletRequestFilter_a45f0fe135e2.service(Unknown Source) at $HttpServletRequestHandler_a45f0fe135e6.service(Unknown Source) at org.tynamo.security.services.impl.SecurityConfiguration$1.call(Securi tyConfiguration.java:55) at org.tynamo.security.services.impl.SecurityConfiguration$1.call(Securi tyConfiguration.java:53) at org.apache.shiro.subject.support.SubjectCallable.doCall(SubjectCallab le.java:90) at org.apache.shiro.subject.support.SubjectCallable.call(SubjectCallable .java:83) at org.apache.shiro.subject.support.DelegatingSubject.execute(Delegating Subject.java:380) at org.tynamo.security.services.impl.SecurityConfiguration.service(Secur ityConfiguration.java:53) at $HttpServletRequestFilter_a45f0fe135df.service(Unknown Source) at $HttpServletRequestHandler_a45f0fe135e6.service(Unknown Source) at org.apache.tapestry5.services.TapestryModule$1.service(TapestryModule .java:852) at $HttpServletRequestHandler_a45f0fe135e6.service(Unknown Source) at $HttpServletRequestHandler_a45f0fe135de.service(Unknown Source) at org.apache.tapestry5.TapestryFilter.doFilter(TapestryFilter.java:171) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl icationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF ilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperV alve.java:233) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextV alve.java:191) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.j ava:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.j ava:102) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineVal ve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.jav a:298) at org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcesso r.java:859) at org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.pr ocess(Http11AprProtocol.java:579) at org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:15 55) at java.lang.Thread.run(Thread.java:662) Caused by: org.apache.tapestry5.ioc.internal.util.TapestryException: Failure rea ding parameter 'value' of component Home:gallery.outputraw_0: org.apache.tapestr y5.ioc.internal.util.TapestryException [at classpath:org/tynamo/examples/hiberna tesecurity/components/Gallery.tml, line 74] at org.apache.tapestry5.internal.structure.ComponentPageElementImpl$Abst ractPhase.invoke(ComponentPageElementImpl.java:153) at org.apache.tapestry5.internal.structure.ComponentPageElementImpl$Begi nRenderPhase.render(ComponentPageElementImpl.java:209) at org.apache.tapestry5.internal.services.RenderQueueImpl.run(RenderQueu eImpl.java:72) ... 91 more Caused by: org.apache.tapestry5.ioc.internal.util.TapestryException: Failure rea ding parameter 'value' of component Home:gallery.outputraw_0: org.apache.tapestr y5.ioc.internal.util.TapestryException [at classpath:org/tynamo/examples/hiberna tesecurity/components/Gallery.tml, line 74] at org.apache.tapestry5.internal.transform.ParameterWorker$3$1.readFromB inding(ParameterWorker.java:268) at org.apache.tapestry5.internal.transform.ParameterWorker$3$1.get(Param eterWorker.java:381) at org.apache.tapestry5.corelib.components.OutputRaw.conduit_get_value(O utputRaw.java) at org.apache.tapestry5.corelib.components.OutputRaw.beginRender(OutputR aw.java:44) at org.apache.tapestry5.corelib.components.OutputRaw.beginRender(OutputR aw.java) at org.apache.tapestry5.internal.structure.ComponentPageElementImpl$Begi nRenderPhase.invokeComponent(ComponentPageElementImpl.java:202) at org.apache.tapestry5.internal.structure.ComponentPageElementImpl$Abst ractPhase.invoke(ComponentPageElementImpl.java:133) ... 93 more Caused by: org.apache.tapestry5.ioc.internal.util.TapestryException [at classpat h:org/tynamo/examples/hibernatesecurity/components/Gallery.tml, line 74] at org.apache.tapestry5.internal.services.PageElementFactoryImpl$2.provi deString(PageElementFactoryImpl.java:129) at org.apache.tapestry5.internal.services.AttributeExpansionBinding.get( AttributeExpansionBinding.java:37) at org.apache.tapestry5.internal.transform.ParameterWorker$3$1.readFromB inding(ParameterWorker.java:263) ... 99 more Caused by: org.apache.tapestry5.ioc.internal.util.TapestryException [at classpat h:org/tynamo/examples/hibernatesecurity/components/Gallery.tml, line 74] at org.apache.tapestry5.internal.bindings.PropBinding.get(PropBinding.ja va:63) at org.apache.tapestry5.internal.services.PageElementFactoryImpl$2.provi deString(PageElementFactoryImpl.java:124) ... 101 more Caused by: java.lang.NullPointerException at org.tynamo.examples.hibernatesecurity.components.Gallery.getToValue(G allery.java:510) at $InternalPropertyConduit_a45f0fe13773.get(Unknown Source) at org.apache.tapestry5.internal.bindings.PropBinding.get(PropBinding.ja va:59) ... 102 more [ERROR] transaction.JDBCTransaction JDBC rollback failed com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Communicat ions link failure during rollback(). Transaction resolution unknown. at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstruct orAccessorImpl.java:39) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingC onstructorAccessorImpl.java:27) at java.lang.reflect.Constructor.newInstance(Constructor.java:513) at com.mysql.jdbc.Util.handleNewInstance(Util.java:409) at com.mysql.jdbc.Util.getInstance(Util.java:384) at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1015) at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:989) at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:984) at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:929) at com.mysql.jdbc.ConnectionImpl.rollback(ConnectionImpl.java:4685) at org.hibernate.transaction.JDBCTransaction.rollbackAndResetAutoCommit( JDBCTransaction.java:213) at org.hibernate.transaction.JDBCTransaction.rollback(JDBCTransaction.ja va:192) at org.apache.tapestry5.internal.hibernate.HibernateSessionManagerImpl.t hreadDidCleanup(HibernateSessionManagerImpl.java:65) at org.apache.tapestry5.ioc.internal.services.PerthreadManagerImpl.clean up(PerthreadManagerImpl.java:104) at org.apache.tapestry5.ioc.internal.RegistryImpl.cleanupThread(Registry Impl.java:442) at org.apache.tapestry5.ioc.internal.RegistryWrapper.cleanupThread(Regis tryWrapper.java:38) at org.apache.tapestry5.TapestryFilter.doFilter(TapestryFilter.java:178) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl icationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF ilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperV alve.java:233) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextV alve.java:191) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.j ava:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.j ava:102) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineVal ve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.jav a:298) at org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcesso r.java:859) at org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.pr ocess(Http11AprProtocol.java:579) at org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:15 55) at java.lang.Thread.run(Thread.java:662) [WARN] TapestryIOCModule.PerthreadManager Error invoking listener org.apache.tap estry5.internal.hibernate.HibernateSessionManagerImpl@17d2482: JDBC rollback fai led org.hibernate.TransactionException: JDBC rollback failed at org.hibernate.transaction.JDBCTransaction.rollback(JDBCTransaction.ja va:200) at org.apache.tapestry5.internal.hibernate.HibernateSessionManagerImpl.t hreadDidCleanup(HibernateSessionManagerImpl.java:65) at org.apache.tapestry5.ioc.internal.services.PerthreadManagerImpl.clean up(PerthreadManagerImpl.java:104) at org.apache.tapestry5.ioc.internal.RegistryImpl.cleanupThread(Registry Impl.java:442) at org.apache.tapestry5.ioc.internal.RegistryWrapper.cleanupThread(Regis tryWrapper.java:38) at org.apache.tapestry5.TapestryFilter.doFilter(TapestryFilter.java:178) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl icationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF ilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperV alve.java:233) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextV alve.java:191) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.j ava:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.j ava:102) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineVal ve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.jav a:298) at org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcesso r.java:859) at org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.pr ocess(Http11AprProtocol.java:579) at org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:15 55) at java.lang.Thread.run(Thread.java:662) Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Communications link failure during rollback(). Transaction resolution unknown. at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstruct orAccessorImpl.java:39) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingC onstructorAccessorImpl.java:27) at java.lang.reflect.Constructor.newInstance(Constructor.java:513) at com.mysql.jdbc.Util.handleNewInstance(Util.java:409) at com.mysql.jdbc.Util.getInstance(Util.java:384) at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1015) at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:989) at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:984) at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:929) at com.mysql.jdbc.ConnectionImpl.rollback(ConnectionImpl.java:4685) at org.hibernate.transaction.JDBCTransaction.rollbackAndResetAutoCommit( JDBCTransaction.java:213) at org.hibernate.transaction.JDBCTransaction.rollback(JDBCTransaction.ja va:192) ... 17 more