I had no problems doing this in 5.2.5 & Tynamo JPA...

I just upgraded to 5.3.0,
Whenever I change any code in any of the Tapestry packages,
when running JPA related code, I get an exception
(listed on the bottom)

The only way to fix it is to restart the server.

I have not tried Jetty because Glassfish is the production environment,
and I will not be switching to Jetty.

SEVERE: Render queue error in SetupRender[TapPage:grid.columns]: Failure 
reading parameter 'model' of component TapPage:grid: WEB9031: WebappClassLoader 
unable to load resource [com/baw/website/entities/Webusers.class], because it 
has not yet been started, or was already stopped
org.apache.tapestry5.ioc.internal.util.TapestryException: Failure reading 
parameter 'model' of component TapPage:grid: WEB9031: WebappClassLoader unable 
to load resource [com/baw/website/entities/Webusers.class], because it has not 
yet been started, or was already stopped [at 
classpath:org/apache/tapestry5/corelib/components/Grid.tml, line 6]
        at 
org.apache.tapestry5.internal.structure.ComponentPageElementImpl$AbstractPhase.invoke(ComponentPageElementImpl.java:209)
        at 
org.apache.tapestry5.internal.structure.ComponentPageElementImpl$SetupRenderPhase.render(ComponentPageElementImpl.java:237)
        at 
org.apache.tapestry5.internal.services.RenderQueueImpl.run(RenderQueueImpl.java:72)
        at 
org.apache.tapestry5.internal.services.PageRenderQueueImpl.render(PageRenderQueueImpl.java:127)
        at $PageRenderQueue_122fae18072a50c6.render(Unknown Source)
        at $PageRenderQueue_122fae18072a50bd.render(Unknown Source)
        at 
org.apache.tapestry5.internal.services.MarkupRendererTerminator.renderMarkup(MarkupRendererTerminator.java:37)
        at 
org.apache.tapestry5.services.TapestryModule$30.renderMarkup(TapestryModule.java:2147)
        at $MarkupRenderer_122fae18072a50c8.renderMarkup(Unknown Source)
        at 
org.apache.tapestry5.services.TapestryModule$29.renderMarkup(TapestryModule.java:2131)
        at $MarkupRenderer_122fae18072a50c8.renderMarkup(Unknown Source)
        at 
org.apache.tapestry5.services.TapestryModule$28.renderMarkup(TapestryModule.java:2113)
        at $MarkupRenderer_122fae18072a50c8.renderMarkup(Unknown Source)
        at 
org.apache.tapestry5.services.TapestryModule$27.renderMarkup(TapestryModule.java:2098)
        at $MarkupRenderer_122fae18072a50c8.renderMarkup(Unknown Source)
        at 
org.apache.tapestry5.services.TapestryModule$26.renderMarkup(TapestryModule.java:2084)
        at $MarkupRenderer_122fae18072a50c8.renderMarkup(Unknown Source)
        at 
org.apache.tapestry5.services.TapestryModule$25.renderMarkup(TapestryModule.java:2066)
        at $MarkupRenderer_122fae18072a50c8.renderMarkup(Unknown Source)
        at 
org.apache.tapestry5.services.TapestryModule$24.renderMarkup(TapestryModule.java:2047)
        at $MarkupRenderer_122fae18072a50c8.renderMarkup(Unknown Source)
        at $MarkupRenderer_122fae18072a50c5.renderMarkup(Unknown Source)
        at 
org.apache.tapestry5.internal.services.PageMarkupRendererImpl.renderPageMarkup(PageMarkupRendererImpl.java:47)
        at $PageMarkupRenderer_122fae18072a50c3.renderPageMarkup(Unknown Source)
        at 
org.apache.tapestry5.internal.services.PageResponseRendererImpl.renderPageResponse(PageResponseRendererImpl.java:67)
        at $PageResponseRenderer_122fae18072a4f22.renderPageResponse(Unknown 
Source)
        at 
org.apache.tapestry5.internal.services.PageRenderRequestHandlerImpl.handle(PageRenderRequestHandlerImpl.java:64)
        at 
org.apache.tapestry5.services.TapestryModule$37.handle(TapestryModule.java:2376)
        at $PageRenderRequestHandler_122fae18072a4f24.handle(Unknown Source)
        at $PageRenderRequestHandler_122fae18072a4f1d.handle(Unknown Source)
        at 
org.apache.tapestry5.internal.services.ComponentRequestHandlerTerminator.handlePageRender(ComponentRequestHandlerTerminator.java:48)
        at 
org.apache.tapestry5.services.InitializeActivePageName.handlePageRender(InitializeActivePageName.java:47)
        at $ComponentRequestHandler_122fae18072a4f1e.handlePageRender(Unknown 
Source)
        at 
org.tynamo.security.SecurityComponentRequestFilter.handlePageRender(SecurityComponentRequestFilter.java:50)
        at $ComponentRequestFilter_122fae18072a4f1b.handlePageRender(Unknown 
Source)
        at $ComponentRequestHandler_122fae18072a4f1e.handlePageRender(Unknown 
Source)
        at $ComponentRequestHandler_122fae18072a4f00.handlePageRender(Unknown 
Source)
        at 
org.apache.tapestry5.internal.services.PageRenderDispatcher.dispatch(PageRenderDispatcher.java:45)
        at $Dispatcher_122fae18072a4f02.dispatch(Unknown Source)
        at $Dispatcher_122fae18072a4efd.dispatch(Unknown Source)
        at 
org.apache.tapestry5.services.TapestryModule$RequestHandlerTerminator.service(TapestryModule.java:434)
        at 
org.apache.tapestry5.internal.services.RequestErrorFilter.service(RequestErrorFilter.java:26)
        at $RequestHandler_122fae18072a4efe.service(Unknown Source)
        at 
org.apache.tapestry5.services.TapestryModule$3.service(TapestryModule.java:1055)
        at $RequestHandler_122fae18072a4efe.service(Unknown Source)
        at 
org.apache.tapestry5.services.TapestryModule$2.service(TapestryModule.java:1045)
        at $RequestHandler_122fae18072a4efe.service(Unknown Source)
        at 
org.apache.tapestry5.internal.services.StaticFilesFilter.service(StaticFilesFilter.java:90)
        at $RequestHandler_122fae18072a4efe.service(Unknown Source)
        at 
org.apache.tapestry5.internal.services.CheckForUpdatesFilter$2.invoke(CheckForUpdatesFilter.java:105)
        at 
org.apache.tapestry5.internal.services.CheckForUpdatesFilter$2.invoke(CheckForUpdatesFilter.java:95)
        at 
org.apache.tapestry5.ioc.internal.util.ConcurrentBarrier.withRead(ConcurrentBarrier.java:85)
        at 
org.apache.tapestry5.internal.services.CheckForUpdatesFilter.service(CheckForUpdatesFilter.java:119)
        at $RequestHandler_122fae18072a4efe.service(Unknown Source)
        at $RequestHandler_122fae18072a4ef0.service(Unknown Source)
        at 
org.apache.tapestry5.services.TapestryModule$HttpServletRequestHandlerTerminator.service(TapestryModule.java:385)
        at 
org.apache.tapestry5.internal.gzip.GZipFilter.service(GZipFilter.java:53)
        at $HttpServletRequestHandler_122fae18072a4ef2.service(Unknown Source)
        at 
org.apache.tapestry5.internal.services.IgnoredPathsFilter.service(IgnoredPathsFilter.java:62)
        at $HttpServletRequestFilter_122fae18072a4eee.service(Unknown Source)
        at $HttpServletRequestHandler_122fae18072a4ef2.service(Unknown Source)
        at 
org.tynamo.security.services.impl.SecurityConfiguration$2.call(SecurityConfiguration.java:104)
        at 
org.apache.shiro.subject.support.SubjectCallable.doCall(SubjectCallable.java:90)
        at 
org.apache.shiro.subject.support.SubjectCallable.call(SubjectCallable.java:83)
        at 
org.apache.shiro.subject.support.DelegatingSubject.execute(DelegatingSubject.java:344)
        at 
org.tynamo.security.services.impl.SecurityConfiguration.service(SecurityConfiguration.java:102)
        at $HttpServletRequestFilter_122fae18072a4eef.service(Unknown Source)
        at $HttpServletRequestHandler_122fae18072a4ef2.service(Unknown Source)
        at 
org.apache.tapestry5.services.TapestryModule$1.service(TapestryModule.java:1005)
        at $HttpServletRequestHandler_122fae18072a4ef2.service(Unknown Source)
        at $HttpServletRequestHandler_122fae18072a4eec.service(Unknown Source)
        at org.apache.tapestry5.TapestryFilter.doFilter(TapestryFilter.java:147)
        at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:256)
        at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:215)
        at 
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:279)
        at 
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
        at 
org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:655)
        at 
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:595)
        at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:98)
        at 
com.sun.enterprise.web.PESessionLockingStandardPipeline.invoke(PESessionLockingStandardPipeline.java:91)
        at 
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:162)
        at 
org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:326)
        at 
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:227)
        at 
com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:170)
        at 
com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:822)
        at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:719)
        at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:1013)
        at 
com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:225)
        at 
com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:137)
        at 
com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:104)
        at 
com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:90)
        at 
com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:79)
        at 
com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:54)
        at 
com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:59)
        at com.sun.grizzly.ContextTask.run(ContextTask.java:71)
        at 
com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:532)
        at 
com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:513)
        at java.lang.Thread.run(Thread.java:680)
Caused by: org.apache.tapestry5.ioc.internal.util.TapestryException: Failure 
reading parameter 'model' of component TapPage:grid: WEB9031: WebappClassLoader 
unable to load resource [com/baw/website/entities/Webusers.class], because it 
has not yet been started, or was already stopped
        at 
org.apache.tapestry5.internal.transform.ParameterWorker$2$1.readFromBinding(ParameterWorker.java:334)
        at 
org.apache.tapestry5.internal.transform.ParameterWorker$2$1.get(ParameterWorker.java:427)
        at 
org.apache.tapestry5.internal.transform.BridgeClassTransformation$BridgeTransformField$WrapFieldHandleForFieldValueConduitAsFieldConduit.get(BridgeClassTransformation.java:210)
        at 
org.apache.tapestry5.corelib.components.Grid.getfieldvalue_model(Grid.java)
        at 
org.apache.tapestry5.corelib.components.Grid.getDataModel(Grid.java:519)
        at 
org.apache.tapestry5.corelib.components.GridColumns.setupRender(GridColumns.java:115)
        at 
org.apache.tapestry5.corelib.components.GridColumns$Shim_122fae18072a5007.invoke(Unknown
 Source)
        at 
org.apache.tapestry5.internal.plastic.MethodHandleImpl.invoke(MethodHandleImpl.java:48)
        at 
org.apache.tapestry5.internal.transform.BridgeClassTransformation$WrapMethodHandleAsMethodAccess.invoke(BridgeClassTransformation.java:84)
        at 
org.apache.tapestry5.internal.transform.RenderPhaseMethodWorker$Invoker.invoke(RenderPhaseMethodWorker.java:117)
        at 
org.apache.tapestry5.internal.transform.RenderPhaseMethodWorker$RenderPhaseMethodAdvice.advise(RenderPhaseMethodWorker.java:86)
        at 
org.apache.tapestry5.internal.transform.BridgeClassTransformation$WrapMethodAdviceAsComponentMethodAdvice.advise(BridgeClassTransformation.java:348)
        at 
org.apache.tapestry5.internal.plastic.AbstractMethodInvocation.proceed(AbstractMethodInvocation.java:86)
        at 
org.apache.tapestry5.corelib.components.GridColumns.setupRender(GridColumns.java)
        at 
org.apache.tapestry5.internal.structure.ComponentPageElementImpl$SetupRenderPhase.invokeComponent(ComponentPageElementImpl.java:230)
        at 
org.apache.tapestry5.internal.structure.ComponentPageElementImpl$AbstractPhase.invoke(ComponentPageElementImpl.java:191)
        ... 97 more
Caused by: java.lang.IllegalStateException: WEB9031: WebappClassLoader unable 
to load resource [com/baw/website/entities/Webusers.class], because it has not 
yet been started, or was already stopped
        at 
org.glassfish.web.loader.WebappClassLoader.findResourceInternal(WebappClassLoader.java:2074)
        at 
org.glassfish.web.loader.WebappClassLoader.findResource(WebappClassLoader.java:1034)
        at 
org.glassfish.web.loader.WebappClassLoader.getResource(WebappClassLoader.java:1169)
        at 
org.glassfish.web.loader.WebappClassLoader.getResource(WebappClassLoader.java:1135)
        at javassist.LoaderClassPath.find(LoaderClassPath.java:86)
        at javassist.ClassPoolTail.find(ClassPoolTail.java:369)
        at javassist.ClassPool.find(ClassPool.java:579)
        at javassist.ClassPool.createCtClass(ClassPool.java:563)
        at javassist.ClassPool.get0(ClassPool.java:528)
        at javassist.ClassPool.get(ClassPool.java:436)
        at 
org.apache.tapestry5.ioc.internal.services.ClassFactoryClassPool.importClass(ClassFactoryClassPool.java:107)
        at 
org.apache.tapestry5.ioc.internal.services.ClassFactoryImpl.importClass(ClassFactoryImpl.java:123)
        at 
org.apache.tapestry5.ioc.internal.services.ClassFactoryImpl.getMethodLocation(ClassFactoryImpl.java:144)
        at $ClassFactory_122fae18072a4f55.getMethodLocation(Unknown Source)
        at $ClassFactory_122fae18072a4f54.getMethodLocation(Unknown Source)
        at 
org.apache.tapestry5.internal.services.BeanModelSourceImpl.orderProperties(BeanModelSourceImpl.java:100)
        at 
org.apache.tapestry5.internal.services.BeanModelSourceImpl.create(BeanModelSourceImpl.java:192)
        at 
org.apache.tapestry5.internal.services.BeanModelSourceImpl.createDisplayModel(BeanModelSourceImpl.java:148)
        at $BeanModelSource_122fae18072a4f7f.createDisplayModel(Unknown Source)
        at org.apache.tapestry5.corelib.components.Grid$1.get(Grid.java:407)
        at 
org.apache.tapestry5.internal.transform.ParameterWorker$2$1.readFromBinding(ParameterWorker.java:328)
        ... 112 more

SEVERE: Processing of request failed with uncaught exception: Render queue 
error in SetupRender[TapPage:grid.columns]: Failure reading parameter 'model' 
of component TapPage:grid: WEB9031: WebappClassLoader unable to load resource 
[com/baw/website/entities/Webusers.class], because it has not yet been started, 
or was already stopped
org.apache.tapestry5.internal.services.RenderQueueException: Render queue error 
in SetupRender[TapPage:grid.columns]: Failure reading parameter 'model' of 
component TapPage:grid: WEB9031: WebappClassLoader unable to load resource 
[com/baw/website/entities/Webusers.class], because it has not yet been started, 
or was already stopped [at 
classpath:org/apache/tapestry5/corelib/components/Grid.tml, line 6]
        at 
org.apache.tapestry5.internal.services.RenderQueueImpl.run(RenderQueueImpl.java:84)
        at 
org.apache.tapestry5.internal.services.PageRenderQueueImpl.render(PageRenderQueueImpl.java:127)
        at $PageRenderQueue_122fae18072a50c6.render(Unknown Source)
        at $PageRenderQueue_122fae18072a50bd.render(Unknown Source)
        at 
org.apache.tapestry5.internal.services.MarkupRendererTerminator.renderMarkup(MarkupRendererTerminator.java:37)
        at 
org.apache.tapestry5.services.TapestryModule$30.renderMarkup(TapestryModule.java:2147)
        at $MarkupRenderer_122fae18072a50c8.renderMarkup(Unknown Source)
        at 
org.apache.tapestry5.services.TapestryModule$29.renderMarkup(TapestryModule.java:2131)
        at $MarkupRenderer_122fae18072a50c8.renderMarkup(Unknown Source)
        at 
org.apache.tapestry5.services.TapestryModule$28.renderMarkup(TapestryModule.java:2113)
        at $MarkupRenderer_122fae18072a50c8.renderMarkup(Unknown Source)
        at 
org.apache.tapestry5.services.TapestryModule$27.renderMarkup(TapestryModule.java:2098)
        at $MarkupRenderer_122fae18072a50c8.renderMarkup(Unknown Source)
        at 
org.apache.tapestry5.services.TapestryModule$26.renderMarkup(TapestryModule.java:2084)
        at $MarkupRenderer_122fae18072a50c8.renderMarkup(Unknown Source)
        at 
org.apache.tapestry5.services.TapestryModule$25.renderMarkup(TapestryModule.java:2066)
        at $MarkupRenderer_122fae18072a50c8.renderMarkup(Unknown Source)
        at 
org.apache.tapestry5.services.TapestryModule$24.renderMarkup(TapestryModule.java:2047)
        at $MarkupRenderer_122fae18072a50c8.renderMarkup(Unknown Source)
        at $MarkupRenderer_122fae18072a50c5.renderMarkup(Unknown Source)
        at 
org.apache.tapestry5.internal.services.PageMarkupRendererImpl.renderPageMarkup(PageMarkupRendererImpl.java:47)
        at $PageMarkupRenderer_122fae18072a50c3.renderPageMarkup(Unknown Source)
        at 
org.apache.tapestry5.internal.services.PageResponseRendererImpl.renderPageResponse(PageResponseRendererImpl.java:67)
        at $PageResponseRenderer_122fae18072a4f22.renderPageResponse(Unknown 
Source)
        at 
org.apache.tapestry5.internal.services.PageRenderRequestHandlerImpl.handle(PageRenderRequestHandlerImpl.java:64)
        at 
org.apache.tapestry5.services.TapestryModule$37.handle(TapestryModule.java:2376)
        at $PageRenderRequestHandler_122fae18072a4f24.handle(Unknown Source)
        at $PageRenderRequestHandler_122fae18072a4f1d.handle(Unknown Source)
        at 
org.apache.tapestry5.internal.services.ComponentRequestHandlerTerminator.handlePageRender(ComponentRequestHandlerTerminator.java:48)
        at 
org.apache.tapestry5.services.InitializeActivePageName.handlePageRender(InitializeActivePageName.java:47)
        at $ComponentRequestHandler_122fae18072a4f1e.handlePageRender(Unknown 
Source)
        at 
org.tynamo.security.SecurityComponentRequestFilter.handlePageRender(SecurityComponentRequestFilter.java:50)
        at $ComponentRequestFilter_122fae18072a4f1b.handlePageRender(Unknown 
Source)
        at $ComponentRequestHandler_122fae18072a4f1e.handlePageRender(Unknown 
Source)
        at $ComponentRequestHandler_122fae18072a4f00.handlePageRender(Unknown 
Source)
        at 
org.apache.tapestry5.internal.services.PageRenderDispatcher.dispatch(PageRenderDispatcher.java:45)
        at $Dispatcher_122fae18072a4f02.dispatch(Unknown Source)
        at $Dispatcher_122fae18072a4efd.dispatch(Unknown Source)
        at 
org.apache.tapestry5.services.TapestryModule$RequestHandlerTerminator.service(TapestryModule.java:434)
        at 
org.apache.tapestry5.internal.services.RequestErrorFilter.service(RequestErrorFilter.java:26)
        at $RequestHandler_122fae18072a4efe.service(Unknown Source)
        at 
org.apache.tapestry5.services.TapestryModule$3.service(TapestryModule.java:1055)
        at $RequestHandler_122fae18072a4efe.service(Unknown Source)
        at 
org.apache.tapestry5.services.TapestryModule$2.service(TapestryModule.java:1045)
        at $RequestHandler_122fae18072a4efe.service(Unknown Source)
        at 
org.apache.tapestry5.internal.services.StaticFilesFilter.service(StaticFilesFilter.java:90)
        at $RequestHandler_122fae18072a4efe.service(Unknown Source)
        at 
org.apache.tapestry5.internal.services.CheckForUpdatesFilter$2.invoke(CheckForUpdatesFilter.java:105)
        at 
org.apache.tapestry5.internal.services.CheckForUpdatesFilter$2.invoke(CheckForUpdatesFilter.java:95)
        at 
org.apache.tapestry5.ioc.internal.util.ConcurrentBarrier.withRead(ConcurrentBarrier.java:85)
        at 
org.apache.tapestry5.internal.services.CheckForUpdatesFilter.service(CheckForUpdatesFilter.java:119)
        at $RequestHandler_122fae18072a4efe.service(Unknown Source)
        at $RequestHandler_122fae18072a4ef0.service(Unknown Source)
        at 
org.apache.tapestry5.services.TapestryModule$HttpServletRequestHandlerTerminator.service(TapestryModule.java:385)
        at 
org.apache.tapestry5.internal.gzip.GZipFilter.service(GZipFilter.java:53)
        at $HttpServletRequestHandler_122fae18072a4ef2.service(Unknown Source)
        at 
org.apache.tapestry5.internal.services.IgnoredPathsFilter.service(IgnoredPathsFilter.java:62)
        at $HttpServletRequestFilter_122fae18072a4eee.service(Unknown Source)
        at $HttpServletRequestHandler_122fae18072a4ef2.service(Unknown Source)
        at 
org.tynamo.security.services.impl.SecurityConfiguration$2.call(SecurityConfiguration.java:104)
        at 
org.apache.shiro.subject.support.SubjectCallable.doCall(SubjectCallable.java:90)
        at 
org.apache.shiro.subject.support.SubjectCallable.call(SubjectCallable.java:83)
        at 
org.apache.shiro.subject.support.DelegatingSubject.execute(DelegatingSubject.java:344)
        at 
org.tynamo.security.services.impl.SecurityConfiguration.service(SecurityConfiguration.java:102)
        at $HttpServletRequestFilter_122fae18072a4eef.service(Unknown Source)
        at $HttpServletRequestHandler_122fae18072a4ef2.service(Unknown Source)
        at 
org.apache.tapestry5.services.TapestryModule$1.service(TapestryModule.java:1005)
        at $HttpServletRequestHandler_122fae18072a4ef2.service(Unknown Source)
        at $HttpServletRequestHandler_122fae18072a4eec.service(Unknown Source)
        at org.apache.tapestry5.TapestryFilter.doFilter(TapestryFilter.java:147)
        at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:256)
        at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:215)
        at 
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:279)
        at 
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
        at 
org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:655)
        at 
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:595)
        at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:98)
        at 
com.sun.enterprise.web.PESessionLockingStandardPipeline.invoke(PESessionLockingStandardPipeline.java:91)
        at 
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:162)
        at 
org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:326)
        at 
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:227)
        at 
com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:170)
        at 
com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:822)
        at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:719)
        at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:1013)
        at 
com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:225)
        at 
com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:137)
        at 
com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:104)
        at 
com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:90)
        at 
com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:79)
        at 
com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:54)
        at 
com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:59)
        at com.sun.grizzly.ContextTask.run(ContextTask.java:71)
        at 
com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:532)
        at 
com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:513)
        at java.lang.Thread.run(Thread.java:680)
Caused by: org.apache.tapestry5.ioc.internal.util.TapestryException: Failure 
reading parameter 'model' of component TapPage:grid: WEB9031: WebappClassLoader 
unable to load resource [com/baw/website/entities/Webusers.class], because it 
has not yet been started, or was already stopped [at 
classpath:org/apache/tapestry5/corelib/components/Grid.tml, line 6]
        at 
org.apache.tapestry5.internal.structure.ComponentPageElementImpl$AbstractPhase.invoke(ComponentPageElementImpl.java:209)
        at 
org.apache.tapestry5.internal.structure.ComponentPageElementImpl$SetupRenderPhase.render(ComponentPageElementImpl.java:237)
        at 
org.apache.tapestry5.internal.services.RenderQueueImpl.run(RenderQueueImpl.java:72)
        ... 95 more
Caused by: org.apache.tapestry5.ioc.internal.util.TapestryException: Failure 
reading parameter 'model' of component TapPage:grid: WEB9031: WebappClassLoader 
unable to load resource [com/baw/website/entities/Webusers.class], because it 
has not yet been started, or was already stopped
        at 
org.apache.tapestry5.internal.transform.ParameterWorker$2$1.readFromBinding(ParameterWorker.java:334)
        at 
org.apache.tapestry5.internal.transform.ParameterWorker$2$1.get(ParameterWorker.java:427)
        at 
org.apache.tapestry5.internal.transform.BridgeClassTransformation$BridgeTransformField$WrapFieldHandleForFieldValueConduitAsFieldConduit.get(BridgeClassTransformation.java:210)
        at 
org.apache.tapestry5.corelib.components.Grid.getfieldvalue_model(Grid.java)
        at 
org.apache.tapestry5.corelib.components.Grid.getDataModel(Grid.java:519)
        at 
org.apache.tapestry5.corelib.components.GridColumns.setupRender(GridColumns.java:115)
        at 
org.apache.tapestry5.corelib.components.GridColumns$Shim_122fae18072a5007.invoke(Unknown
 Source)
        at 
org.apache.tapestry5.internal.plastic.MethodHandleImpl.invoke(MethodHandleImpl.java:48)
        at 
org.apache.tapestry5.internal.transform.BridgeClassTransformation$WrapMethodHandleAsMethodAccess.invoke(BridgeClassTransformation.java:84)
        at 
org.apache.tapestry5.internal.transform.RenderPhaseMethodWorker$Invoker.invoke(RenderPhaseMethodWorker.java:117)
        at 
org.apache.tapestry5.internal.transform.RenderPhaseMethodWorker$RenderPhaseMethodAdvice.advise(RenderPhaseMethodWorker.java:86)
        at 
org.apache.tapestry5.internal.transform.BridgeClassTransformation$WrapMethodAdviceAsComponentMethodAdvice.advise(BridgeClassTransformation.java:348)
        at 
org.apache.tapestry5.internal.plastic.AbstractMethodInvocation.proceed(AbstractMethodInvocation.java:86)
        at 
org.apache.tapestry5.corelib.components.GridColumns.setupRender(GridColumns.java)
        at 
org.apache.tapestry5.internal.structure.ComponentPageElementImpl$SetupRenderPhase.invokeComponent(ComponentPageElementImpl.java:230)
        at 
org.apache.tapestry5.internal.structure.ComponentPageElementImpl$AbstractPhase.invoke(ComponentPageElementImpl.java:191)
        ... 97 more
Caused by: java.lang.IllegalStateException: WEB9031: WebappClassLoader unable 
to load resource [com/baw/website/entities/Webusers.class], because it has not 
yet been started, or was already stopped
        at 
org.glassfish.web.loader.WebappClassLoader.findResourceInternal(WebappClassLoader.java:2074)
        at 
org.glassfish.web.loader.WebappClassLoader.findResource(WebappClassLoader.java:1034)
        at 
org.glassfish.web.loader.WebappClassLoader.getResource(WebappClassLoader.java:1169)
        at 
org.glassfish.web.loader.WebappClassLoader.getResource(WebappClassLoader.java:1135)
        at javassist.LoaderClassPath.find(LoaderClassPath.java:86)
        at javassist.ClassPoolTail.find(ClassPoolTail.java:369)
        at javassist.ClassPool.find(ClassPool.java:579)
        at javassist.ClassPool.createCtClass(ClassPool.java:563)
        at javassist.ClassPool.get0(ClassPool.java:528)
        at javassist.ClassPool.get(ClassPool.java:436)
        at 
org.apache.tapestry5.ioc.internal.services.ClassFactoryClassPool.importClass(ClassFactoryClassPool.java:107)
        at 
org.apache.tapestry5.ioc.internal.services.ClassFactoryImpl.importClass(ClassFactoryImpl.java:123)
        at 
org.apache.tapestry5.ioc.internal.services.ClassFactoryImpl.getMethodLocation(ClassFactoryImpl.java:144)
        at $ClassFactory_122fae18072a4f55.getMethodLocation(Unknown Source)
        at $ClassFactory_122fae18072a4f54.getMethodLocation(Unknown Source)
        at 
org.apache.tapestry5.internal.services.BeanModelSourceImpl.orderProperties(BeanModelSourceImpl.java:100)
        at 
org.apache.tapestry5.internal.services.BeanModelSourceImpl.create(BeanModelSourceImpl.java:192)
        at 
org.apache.tapestry5.internal.services.BeanModelSourceImpl.createDisplayModel(BeanModelSourceImpl.java:148)
        at $BeanModelSource_122fae18072a4f7f.createDisplayModel(Unknown Source)
        at org.apache.tapestry5.corelib.components.Grid$1.get(Grid.java:407)
        at 
org.apache.tapestry5.internal.transform.ParameterWorker$2$1.readFromBinding(ParameterWorker.java:328)
        ... 112 more


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