0 Replies Latest reply on Oct 29, 2007 2:13 PM by Sean Radford

    Seam, Drools, and Load Testing

    Sean Radford Novice

      Hi,

      I've just done some very quick and simple load testing of Seam 2 CR2 application and have identified 2 issues as we ramp up the number of users:

      1. If the ramp up is quick, the securityRules component does not get instantiated resulting in an NPE (for the current and ALL subsequent users!):


      16:48:39,125 ERROR [SeamPhaseListener] uncaught exception
      javax.el.ELException: java.lang.NullPointerException
      at org.jboss.el.util.ReflectionUtil.invokeMethod(ReflectionUtil.java:332)
      at org.jboss.el.parser.AstFunction.getValue(AstFunction.java:84)
      at org.jboss.el.parser.AstOr.getValue(AstOr.java:21)
      at org.jboss.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:186)
      at org.jboss.seam.core.Expressions$1.getValue(Expressions.java:112)
      at org.jboss.seam.security.Identity.evaluateExpression(Identity.java:606)
      at org.jboss.seam.security.Identity.checkRestriction(Identity.java:215)
      at org.jboss.seam.navigation.Page.checkPermission(Page.java:218)
      at org.jboss.seam.navigation.Page.preRender(Page.java:238)
      at org.jboss.seam.navigation.Pages.preRender(Pages.java:309)
      at org.jboss.seam.jsf.SeamPhaseListener.preRenderPage(SeamPhaseListener.java:544)
      at org.jboss.seam.jsf.SeamPhaseListener.beforeRenderResponse(SeamPhaseListener.java:455)
      at org.jboss.seam.jsf.SeamPhaseListener.beforeServletPhase(SeamPhaseListener.java:146)
      at org.jboss.seam.jsf.SeamPhaseListener.beforePhase(SeamPhaseListener.java:116)
      at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:222)
      at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:144)
      at javax.faces.webapp.FacesServlet.service(FacesServlet.java:245)
      at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
      at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
      at org.jboss.seam.servlet.SeamFilter$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:44)
      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$FilterChainImpl.doFilter(SeamFilter.java:69)
      at org.jboss.seam.servlet.SeamFilter.doFilter(SeamFilter.java:150)
      at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
      at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
      at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
      at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
      at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
      at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230)
      at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
      at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:179)
      at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84)
      at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
      at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104)
      at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157)
      at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
      at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:241)
      at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
      at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:580)
      at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
      at java.lang.Thread.run(Thread.java:619)
      Caused by: java.lang.NullPointerException
      at org.jboss.seam.security.RuleBasedIdentity.hasRole(RuleBasedIdentity.java:162)
      at org.jboss.seam.security.SecurityFunctions.hasRole(SecurityFunctions.java:12)
      at sun.reflect.GeneratedMethodAccessor853.invoke(Unknown Source)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
      at java.lang.reflect.Method.invoke(Method.java:597)
      at org.jboss.el.util.ReflectionUtil.invokeMethod(ReflectionUtil.java:328)
      ... 53 more


      2. If we have a slow ramp up to avoid the NPE above intermittently we get AuthorizationExceptions (when they should not be thrown) which seem to only ocurr on Class/Method restrictions (rather than xhtml tag expressions):


      javax.faces.FacesException: javax.el.ELException: /user/index.xhtml @21,99 value="#{searchUserAction.statusOptions}": Error reading 'statusOptions' on type org.javassist.tmp.java.lang.Object_$$_javassist_6
      at javax.faces.component.UIOutput.getValue(UIOutput.java:176)
      at com.sun.faces.renderkit.html_basic.MenuRenderer.getCurrentSelectedValues(MenuRenderer.java:624)
      at com.sun.faces.renderkit.html_basic.SelectManyCheckboxListRenderer.renderOption(SelectManyCheckboxListRenderer.java:265)
      at com.sun.faces.renderkit.html_basic.SelectManyCheckboxListRenderer.encodeEnd(SelectManyCheckboxListRenderer.java:146)
      at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:836)
      at com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.encodeRecursive(HtmlBasicRenderer.java:279)
      at com.sun.faces.renderkit.html_basic.GroupRenderer.encodeChildren(GroupRenderer.java:117)
      at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:812)
      at javax.faces.component.UIComponent.encodeAll(UIComponent.java:886)
      at javax.faces.render.Renderer.encodeChildren(Renderer.java:137)
      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.java:592)
      at org.ajax4jsf.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:108)
      at org.ajax4jsf.application.AjaxViewHandler.renderView(AjaxViewHandler.java:216)
      at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.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(ApplicationFilterChain.java:290)
      at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.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:44)
      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.servlet.SeamFilter.doFilter(SeamFilter.java:150)
      at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
      at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
      at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
      at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
      at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
      at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230)
      at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
      at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:179)
      at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84)
      at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
      at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104)
      at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157)
      at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
      at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:241)
      at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
      at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:580)
      at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
      at java.lang.Thread.run(Thread.java:619)
      Caused by: javax.el.ELException: /user/index.xhtml @21,99 value="#{searchtUserAction.statusOptions}": Error reading 'statusOptions' on type org.javassi
      st.tmp.java.lang.Object_$$_javassist_6
      at com.sun.facelets.el.TagValueExpression.getValue(TagValueExpression.java:76)
      at javax.faces.component.UIOutput.getValue(UIOutput.java:173)
      ... 56 more
      Caused by: org.jboss.seam.security.AuthorizationException: Authorization check failed for expression [#{s:hasPermission('user','search',null)}]
      at org.jboss.seam.security.Identity.checkRestriction(Identity.java:227)
      at org.jboss.seam.security.SecurityInterceptor.aroundInvoke(SecurityInterceptor.java:38)
      at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
      at org.jboss.seam.ejb.RemoveInterceptor.aroundInvoke(RemoveInterceptor.java:41)
      at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
      at org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:106)
      at org.jboss.seam.intercept.ClientSideInterceptor.invoke(ClientSideInterceptor.java:54)
      at org.javassist.tmp.java.lang.Object_$$_javassist_6.getStatusOptions(Object_$$_javassist_6.java)
      at sun.reflect.GeneratedMethodAccessor501.invoke(Unknown Source)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
      at java.lang.reflect.Method.invoke(Method.java:597)
      at javax.el.BeanELResolver.getValue(BeanELResolver.java:62)
      at javax.el.CompositeELResolver.getValue(CompositeELResolver.java:53)
      at com.sun.faces.el.FacesCompositeELResolver.getValue(FacesCompositeELResolver.java:64)
      at org.jboss.el.parser.AstPropertySuffix.getValue(AstPropertySuffix.java:53)
      at org.jboss.el.parser.AstValue.getValue(AstValue.java:67)
      at org.jboss.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:186)
      at com.sun.facelets.el.TagValueExpression.getValue(TagValueExpression.java:71)
      ... 57 more



      Any ideas / pointers to resolve these issues?

      Are we likely to be doing something wrong or is this a Seam / Drools problem?

      Thanks and regards.