When I start JBoss everything is fine, when I run my application I get this stacktrace: anonymous wrote : 08:22:26,444 ERROR [UICache] error accessing cache | java.lang.NullPointerException | at org.jboss.seam.ui.renderkit.CacheRendererBase.getFromCache(CacheRende | rerBase.java:80) | at org.jboss.seam.ui.renderkit.CacheRendererBase.doEncodeChildren(CacheR | endererBase.java:34) | at org.jboss.seam.ui.util.cdk.RendererBase.encodeChildren(RendererBase.j | ava:92) | at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase. | java:812) | at org.jboss.seam.ui.util.cdk.RendererBase.renderChild(RendererBase.java | :186) | at org.jboss.seam.ui.util.cdk.RendererBase.renderChildren(RendererBase.j | ava:166) | at org.jboss.seam.ui.renderkit.FragmentRendererBase.doEncodeChildren(Fra | gmentRendererBase.java:29) | at org.jboss.seam.ui.util.cdk.RendererBase.encodeChildren(RendererBase.j | ava:92) | at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase. | java:812) | at javax.faces.component.UIComponent.encodeAll(UIComponent.java:886) | at javax.faces.component.UIComponent.encodeAll(UIComponent.java:892) | at com.sun.facelets.FaceletViewHandler.renderView(FaceletViewHandler.jav | a:592) | at org.ajax4jsf.application.ViewHandlerWrapper.renderView(ViewHandlerWra | pper.java:108) | at org.ajax4jsf.application.AjaxViewHandler.renderView(AjaxViewHandler.j | ava:216) | at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePha | se.java:106) | at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:251) | at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:144) | at javax.faces.webapp.FacesServlet.service(FacesServlet.java:245) | at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl | icationFilterChain.java:290) | at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF | ilterChain.java:206) | at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter | .java:83) | at org.jboss.seam.web.MultipartFilter.doFilter(MultipartFilter.java:85) | at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter | .java:69) | at org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.java:64) | at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter | .java:69) | at org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:45) | at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter | .java:69) | at org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:141) | | at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:281) | at org.jboss.seam.web.Ajax4jsfFilter.doFilter(Ajax4jsfFilter.java:60) | at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter | .java:69) | at org.jboss.seam.web.LoggingFilter.doFilter(LoggingFilter.java:58) | at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter | .java:69) | at org.jboss.seam.debug.hot.HotDeployFilter.doFilter(HotDeployFilter.jav | a:68) | at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter | .java:69) | at org.jboss.seam.servlet.SeamFilter.doFilter(SeamFilter.java:158) | at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl | icationFilterChain.java:235) | at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF | ilterChain.java:206) | at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFi | lter.java:96) | at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl | icationFilterChain.java:235) | at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF | ilterChain.java:206) | at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperV | alve.java:230) | at org.apache.catalina.core.StandardContextValve.invoke(StandardContextV | alve.java:175) | at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(Securit | yAssociationValve.java:179) | at org.apache.catalina.authenticator.AuthenticatorBase.invoke(Authentica | torBase.java:433) | at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValv | e.java:84) | at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.j | ava:128) | at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.j | ava:104) | at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedC | onnectionValve.java:157) | at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineVal | ve.java:109) | at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.jav | a:241) | at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java | :844) | at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.proce | ss(Http11Protocol.java:580) | at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:44 | 7) | at java.lang.Thread.run(Thread.java:619) | 08:22:26,454 ERROR [STDERR] 2008-01-29 08:22:26 com.sun.facelets.FaceletViewHand | ler handleRenderException | SEVERE: Error Rendering View[/home.xhtml] | javax.el.ELException: /layout/template.xhtml: @In attribute requires non-null va | lue: usersStatistics.pojoCache | at com.sun.facelets.compiler.TextInstruction.write(TextInstruction.java: | 50) | at com.sun.facelets.compiler.UIInstructions.encodeBegin(UIInstructions.j | ava:39) | at org.jboss.seam.ui.util.cdk.RendererBase.renderChild(RendererBase.java | :184) | at org.jboss.seam.ui.util.cdk.RendererBase.renderChildren(RendererBase.j | ava:166) | at org.jboss.seam.ui.renderkit.CacheRendererBase.doEncodeChildren(CacheR | endererBase.java:41) | at org.jboss.seam.ui.util.cdk.RendererBase.encodeChildren(RendererBase.j | ava:92) | at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase. | java:812) | at org.jboss.seam.ui.util.cdk.RendererBase.renderChild(RendererBase.java | :186) | at org.jboss.seam.ui.util.cdk.RendererBase.renderChildren(RendererBase.j | ava:166) | at org.jboss.seam.ui.renderkit.FragmentRendererBase.doEncodeChildren(Fra | gmentRendererBase.java:29) | at org.jboss.seam.ui.util.cdk.RendererBase.encodeChildren(RendererBase.j | ava:92) | at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase. | java:812) | at javax.faces.component.UIComponent.encodeAll(UIComponent.java:886) | at javax.faces.component.UIComponent.encodeAll(UIComponent.java:892) | at com.sun.facelets.FaceletViewHandler.renderView(FaceletViewHandler.jav | a:592) | at org.ajax4jsf.application.ViewHandlerWrapper.renderView(ViewHandlerWra | pper.java:108) | at org.ajax4jsf.application.AjaxViewHandler.renderView(AjaxViewHandler.j | ava:216) | at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePha | se.java:106) | at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:251) | at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:144) | at javax.faces.webapp.FacesServlet.service(FacesServlet.java:245) | at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl | icationFilterChain.java:290) | at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF | ilterChain.java:206) | at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter | .java:83) | at org.jboss.seam.web.MultipartFilter.doFilter(MultipartFilter.java:85) | at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter | .java:69) | at org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.java:64) | at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter | .java:69) | at org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:45) | at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter | .java:69) | at org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:141) | | at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:281) | at org.jboss.seam.web.Ajax4jsfFilter.doFilter(Ajax4jsfFilter.java:60) | at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter | .java:69) | at org.jboss.seam.web.LoggingFilter.doFilter(LoggingFilter.java:58) | at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter | .java:69) | at org.jboss.seam.debug.hot.HotDeployFilter.doFilter(HotDeployFilter.jav | a:68) | at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter | .java:69) | at org.jboss.seam.servlet.SeamFilter.doFilter(SeamFilter.java:158) | at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl | icationFilterChain.java:235) | at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF | ilterChain.java:206) | at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFi | lter.java:96) | 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:230) | at org.apache.catalina.core.StandardContextValve.invoke(StandardContextV | alve.java:175) | at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(Securit | yAssociationValve.java:179) | at org.apache.catalina.authenticator.AuthenticatorBase.invoke(Authentica | torBase.java:433) | at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValv | e.java:84) | at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.j | ava:128) | at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.j | ava:104) | at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedC | onnectionValve.java:157) | at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineVal | ve.java:109) | at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.jav | a:241) | at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java | :844) | at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.proce | ss(Http11Protocol.java:580) | at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:44 | 7) | at java.lang.Thread.run(Thread.java:619) | Caused by: javax.ejb.EJBTransactionRolledbackException: @In attribute requires n | on-null value: usersStatistics.pojoCache | at org.jboss.ejb3.tx.Ejb3TxPolicy.handleInCallerTx(Ejb3TxPolicy.java:87) | | at org.jboss.aspects.tx.TxPolicy.invokeInCallerTx(TxPolicy.java:130) | at org.jboss.aspects.tx.TxInterceptor$Required.invoke(TxInterceptor.java | :195) | at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation. | java:101) | at org.jboss.aspects.tx.TxPropagationInterceptor.invoke(TxPropagationInt | erceptor.java:76) | at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation. | java:101) | at org.jboss.ejb3.stateful.StatefulInstanceInterceptor.invoke(StatefulIn | stanceInterceptor.java:83) | at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation. | java:101) | at org.jboss.aspects.security.AuthenticationInterceptor.invoke(Authentic | ationInterceptor.java:77) | at org.jboss.ejb3.security.Ejb3AuthenticationInterceptor.invoke(Ejb3Auth | enticationInterceptor.java:106) | at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation. | java:101) | at org.jboss.ejb3.ENCPropagationInterceptor.invoke(ENCPropagationInterce | ptor.java:46) | at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation. | java:101) | at org.jboss.ejb3.asynchronous.AsynchronousInterceptor.invoke(Asynchrono | usInterceptor.java:106) | at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation. | java:101) | at org.jboss.ejb3.stateful.StatefulContainer.localInvoke(StatefulContain | er.java:204) | at org.jboss.ejb3.stateful.StatefulLocalProxy.invoke(StatefulLocalProxy. | java:100) | at $Proxy156.getActiveUsersCount(Unknown Source) | at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) | at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl. | java:39) | at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces | sorImpl.java:25) | at java.lang.reflect.Method.invoke(Method.java:597) | at org.jboss.seam.util.Reflections.invoke(Reflections.java:21) | at org.jboss.seam.intercept.RootInvocationContext.proceed(RootInvocation | Context.java:31) | at org.jboss.seam.intercept.ClientSideInterceptor$1.proceed(ClientSideIn | terceptor.java:76) | at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocation | Context.java:56) | at org.jboss.seam.ejb.RemoveInterceptor.aroundInvoke(RemoveInterceptor.j | ava:41) | at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocation | Context.java:68) | at org.jboss.seam.core.SynchronizationInterceptor.aroundInvoke(Synchroni | zationInterceptor.java:32) | at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocation | Context.java:68) | at org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java: | 107) | at org.jboss.seam.intercept.ClientSideInterceptor.invoke(ClientSideInter | ceptor.java:54) | at org.javassist.tmp.java.lang.Object_$$_javassist_9.getActiveUsersCount | (Object_$$_javassist_9.java) | at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) | at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl. | java:39) | at sun.reflect.DelegatingMethodAccessorImpl.invoke(Dele | 08:22:26,464 ERROR [STDERR] gatingMethodAccessorImpl.java:25) | at java.lang.reflect.Method.invoke(Method.java:597) | at org.jboss.seam.util.Reflections.invoke(Reflections.java:21) | at org.jboss.seam.util.Reflections.invokeAndWrap(Reflections.java:125) | at org.jboss.seam.Component.callComponentMethod(Component.java:2082) | at org.jboss.seam.Component.getInstanceFromFactory(Component.java:1926) | at org.jboss.seam.Component.getInstance(Component.java:1863) | at org.jboss.seam.Component.getInstance(Component.java:1840) | at org.jboss.seam.Namespace.getComponentInstance(Namespace.java:55) | at org.jboss.seam.Namespace.getComponentInstance(Namespace.java:50) | at org.jboss.seam.el.SeamELResolver.resolveBase(SeamELResolver.java:166) | | at org.jboss.seam.el.SeamELResolver.getValue(SeamELResolver.java:53) | at javax.el.CompositeELResolver.getValue(CompositeELResolver.java:53) | at com.sun.faces.el.FacesCompositeELResolver.getValue(FacesCompositeELRe | solver.java:64) | at org.jboss.el.parser.AstIdentifier.getValue(AstIdentifier.java:44) | at org.jboss.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:18 | 6) | at com.sun.facelets.el.ELText$ELTextVariable.writeText(ELText.java:184) | at com.sun.facelets.compiler.TextInstruction.write(TextInstruction.java: | 45) | ... 57 more | Caused by: org.jboss.seam.RequiredException: @In attribute requires non-null val | ue: usersStatistics.pojoCache | at org.jboss.seam.Component.getValueToInject(Component.java:2168)...
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