Dashboard Actions plugin not working for the anonymous user

2009-11-09 21:42:58,231 ERROR [TP-Processor103] [atlassian.plugin.web.DefaultWebInterfaceManager] filterFragmentsByCondition Could not evaluate condition 'com.atlassian.confluence.plugins.dashboard.CreateContentCondition@1e479c0' for descriptor: system.dashboard.button/add-page
-- url: /dashboard.action | userName: anonymous | action: dashboard
java.lang.IllegalArgumentException: User must not be null
       at com.atlassian.user.util.Assert.fail(Assert.java:12)
       at com.atlassian.user.util.Assert.notNull(Assert.java:25)
       at com.atlassian.user.impl.delegation.DelegatingGroupManager.getGroups(DelegatingGroupManager.java:86)
       at bucket.user.DefaultUserAccessor.getGroups(DefaultUserAccessor.java:444)
       at com.atlassian.confluence.user.DefaultUserAccessor.getGroupsAsList(DefaultUserAccessor.java:692)
       at sun.reflect.GeneratedMethodAccessor681.invoke(Unknown Source)
       at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
       at java.lang.reflect.Method.invoke(Method.java:597)
       at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:304)
       at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:182)
       at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:149)
       at com.atlassian.spring.interceptors.SpringProfilingInterceptor.invoke(SpringProfilingInterceptor.java:16)
       at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
       at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:106)
       at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
       at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
       at $Proxy31.getGroupsAsList(Unknown Source)
       at com.atlassian.confluence.plugins.dashboard.CreateContentCondition.shouldDisplay(CreateContentCondition.java:44)
       at com.atlassian.confluence.plugin.descriptor.web.conditions.BaseConfluenceCondition.shouldDisplay(BaseConfluenceCondition.java:30)
       at com.atlassian.plugin.web.DefaultWebInterfaceManager.filterFragmentsByCondition(DefaultWebInterfaceManager.java:119)
       at com.atlassian.plugin.web.DefaultWebInterfaceManager.getDisplayableItems(DefaultWebInterfaceManager.java:103)
       at com.atlassian.confluence.plugin.descriptor.web.ConfluenceWebInterfaceManager.getDisplayableItems(ConfluenceWebInterfaceManager.java:73)
       at sun.reflect.GeneratedMethodAccessor295.invoke(Unknown Source)
       at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
       at java.lang.reflect.Method.invoke(Method.java:597)
       at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.doInvoke(UberspectImpl.java:389)
       at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.invoke(UberspectImpl.java:378)
       at com.atlassian.confluence.velocity.introspection.UnboxingMethod.invoke(UnboxingMethod.java:31)
       at org.apache.velocity.runtime.parser.node.ASTMethod.execute(ASTMethod.java:270)
       at org.apache.velocity.runtime.parser.node.ASTReference.execute(ASTReference.java:252)
       at org.apache.velocity.runtime.parser.node.ASTReference.value(ASTReference.java:487)
       at org.apache.velocity.runtime.directive.Foreach.render(Foreach.java:280)
       at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:175)
       at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:72)
       at org.apache.velocity.runtime.directive.VelocimacroProxy.render(VelocimacroProxy.java:212)
       at org.apache.velocity.runtime.directive.RuntimeMacro.render(RuntimeMacro.java:247)
       at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:175)
       at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:336)
       at org.apache.velocity.runtime.directive.Parse.render(Parse.java:260)
       at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:175)
       at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:72)
       at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:87)
       at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:336)
       at org.apache.velocity.Template.merge(Template.java:328)
       at org.apache.velocity.Template.merge(Template.java:235)
       at com.atlassian.confluence.util.velocity.VelocityUtils.renderTemplateWithoutSwallowingErrors(VelocityUtils.java:62)
       at com.atlassian.confluence.util.velocity.VelocityUtils.renderTemplateWithoutSwallowingErrors(VelocityUtils.java:68)
       at com.atlassian.confluence.util.velocity.VelocityUtils.getRenderedTemplateWithoutSwallowingErrors(VelocityUtils.java:55)
       at com.atlassian.confluence.setup.velocity.ApplyDecoratorDirective.render(ApplyDecoratorDirective.java:207)
       at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:175)
       at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:72)
       at org.apache.velocity.runtime.directive.VelocimacroProxy.render(VelocimacroProxy.java:212)
       at org.apache.velocity.runtime.directive.RuntimeMacro.render(RuntimeMacro.java:247)
       at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:175)
       at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:72)
       at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:336)
       at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:106)
       at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:336)
       at org.apache.velocity.Template.merge(Template.java:328)
       at org.apache.velocity.Template.merge(Template.java:235)
       at com.atlassian.confluence.util.velocity.VelocityUtils.renderTemplateWithoutSwallowingErrors(VelocityUtils.java:62)
       at com.atlassian.confluence.util.velocity.VelocityUtils.renderTemplateWithoutSwallowingErrors(VelocityUtils.java:68)
       at com.atlassian.confluence.util.velocity.VelocityUtils.getRenderedTemplateWithoutSwallowingErrors(VelocityUtils.java:55)
       at com.atlassian.confluence.setup.velocity.ApplyDecoratorDirective.render(ApplyDecoratorDirective.java:207)
       at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:175)
       at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:336)
       at org.apache.velocity.Template.merge(Template.java:328)
       at org.apache.velocity.Template.merge(Template.java:235)
       at com.opensymphony.webwork.dispatcher.VelocityResult.doExecute(VelocityResult.java:91)
       at com.atlassian.xwork.results.ProfiledVelocityResult.doExecute(ProfiledVelocityResult.java:21)
       at com.opensymphony.webwork.dispatcher.WebWorkResultSupport.execute(WebWorkResultSupport.java:116)
       at com.opensymphony.xwork.DefaultActionInvocation.executeResult(DefaultActionInvocation.java:263)
       at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:187)
       at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:35)
       at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)
       at com.atlassian.confluence.util.LoggingContextInterceptor.intercept(LoggingContextInterceptor.java:49)
       at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)
       at com.atlassian.confluence.core.CancellingInterceptor.intercept(CancellingInterceptor.java:23)
       at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)
       at com.atlassian.confluence.security.actions.PermissionCheckInterceptor.intercept(PermissionCheckInterceptor.java:56)
       at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)
       at com.atlassian.confluence.setup.webwork.BootstrapAwareInterceptor.intercept(BootstrapAwareInterceptor.java:26)
       at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)
       at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:35)
       at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)
       at com.atlassian.confluence.user.actions.UserAwareInterceptor.intercept(UserAwareInterceptor.java:57)
       at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)
       at com.atlassian.confluence.pages.actions.CommentAwareInterceptor.intercept(CommentAwareInterceptor.java:44)
       at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)
       at com.atlassian.confluence.pages.actions.PageAwareInterceptor.intercept(PageAwareInterceptor.java:110)
       at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)
       at com.atlassian.confluence.spaces.actions.SpaceAwareInterceptor.intercept(SpaceAwareInterceptor.java:68)
       at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)
       at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:35)
       at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)
       at com.atlassian.confluence.core.actions.LastModifiedInterceptor.intercept(LastModifiedInterceptor.java:38)
       at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)
       at com.atlassian.confluence.core.ConfluenceAutowireInterceptor.intercept(ConfluenceAutowireInterceptor.java:38)
       at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)
       at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:35)
       at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)
       at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:35)
       at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)
       at com.atlassian.xwork.interceptors.TransactionalInvocation.invokeAndHandleExceptions(TransactionalInvocation.java:72)
       at com.atlassian.xwork.interceptors.TransactionalInvocation.invokeInTransaction(TransactionalInvocation.java:59)
       at com.atlassian.xwork.interceptors.XWorkTransactionInterceptor.intercept(XWorkTransactionInterceptor.java:56)
       at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)
       at com.atlassian.confluence.xwork.SetupIncompleteInterceptor.intercept(SetupIncompleteInterceptor.java:40)
       at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)
       at com.opensymphony.xwork.interceptor.AroundInterceptor.intercept(AroundInterceptor.java:35)
       at com.opensymphony.xwork.DefaultActionInvocation.invoke(DefaultActionInvocation.java:165)
       at com.opensymphony.xwork.DefaultActionProxy.execute(DefaultActionProxy.java:115)
       at com.atlassian.confluence.servlet.ConfluenceServletDispatcher.serviceAction(ConfluenceServletDispatcher.java:53)
      at com.opensymphony.webwork.dispatcher.ServletDispatcher.service(ServletDispatcher.java:199)
       at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
       at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
       at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
       at com.atlassian.plugin.servlet.filter.IteratingFilterChain.doFilter(IteratingFilterChain.java:46)
       at com.atlassian.plugin.servlet.filter.ServletFilterModuleContainerFilter.doFilter(ServletFilterModuleContainerFilter.java:55)
       at com.atlassian.plugin.servlet.filter.ServletFilterModuleContainerFilter.doFilter(ServletFilterModuleContainerFilter.java:41)
       at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
       at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
       at com.opensymphony.module.sitemesh.filter.PageFilter.parsePage(PageFilter.java:118)
       at com.atlassian.confluence.util.profiling.ProfilingPageFilter.parsePage(ProfilingPageFilter.java:84)
       at com.opensymphony.module.sitemesh.filter.PageFilter.doFilter(PageFilter.java:54)
       at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
       at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
       at com.atlassian.plugin.servlet.filter.IteratingFilterChain.doFilter(IteratingFilterChain.java:46)
       at com.atlassian.plugin.servlet.filter.ServletFilterModuleContainerFilter.doFilter(ServletFilterModuleContainerFilter.java:55)
       at com.atlassian.plugin.servlet.filter.ServletFilterModuleContainerFilter.doFilter(ServletFilterModuleContainerFilter.java:41)
       at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
       at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
       at com.atlassian.confluence.jmx.JmxFilter.doFilter(JmxFilter.java:106)
       at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
       at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
       at com.atlassian.core.filters.ServletContextThreadLocalFilter.doFilter(ServletContextThreadLocalFilter.java:19)
       at com.atlassian.core.filters.AbstractHttpFilter.doFilter(AbstractHttpFilter.java:31)
       at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
       at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
       at com.atlassian.confluence.util.LoggingContextFilter.doFilter(LoggingContextFilter.java:47)
       at com.atlassian.core.filters.AbstractHttpFilter.doFilter(AbstractHttpFilter.java:31)
       at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
       at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
       at com.atlassian.confluence.web.filter.ThreadLocalCacheFilter.doFilter(ThreadLocalCacheFilter.java:23)
       at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
       at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
       at com.atlassian.confluence.util.UserThreadLocalFilter.doFilter(UserThreadLocalFilter.java:44)
       at com.atlassian.core.filters.AbstractHttpFilter.doFilter(AbstractHttpFilter.java:31)
       at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
       at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
       at com.atlassian.seraph.filter.SecurityFilter.doFilter(SecurityFilter.java:206)
       at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
       at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
       at com.atlassian.security.auth.trustedapps.filter.TrustedApplicationsFilter.doFilter(TrustedApplicationsFilter.java:98)
       at com.atlassian.confluence.util.AbstractBootstrapHotSwappingFilter.doFilter(AbstractBootstrapHotSwappingFilter.java:30)
       at com.atlassian.core.filters.AbstractHttpFilter.doFilter(AbstractHttpFilter.java:31)
       at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
       at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
       at com.atlassian.seraph.filter.BaseLoginFilter.doFilter(BaseLoginFilter.java:131)
       at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
       at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
       at com.atlassian.plugin.servlet.filter.IteratingFilterChain.doFilter(IteratingFilterChain.java:46)
       at com.atlassian.plugin.servlet.filter.DelegatingPluginFilter$1.doFilter(DelegatingPluginFilter.java:66)
       at com.atlassian.oauth.serviceprovider.internal.servlet.OAuthFilter.doFilter(OAuthFilter.java:69)
       at com.atlassian.plugin.servlet.filter.DelegatingPluginFilter.doFilter(DelegatingPluginFilter.java:74)
       at com.atlassian.plugin.servlet.filter.IteratingFilterChain.doFilter(IteratingFilterChain.java:42)
       at com.atlassian.plugin.servlet.filter.ServletFilterModuleContainerFilter.doFilter(ServletFilterModuleContainerFilter.java:55)
       at com.atlassian.plugin.servlet.filter.ServletFilterModuleContainerFilter.doFilter(ServletFilterModuleContainerFilter.java:41)
       at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
       at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
       at com.atlassian.confluence.util.ClusterHeaderFilter.doFilter(ClusterHeaderFilter.java:35)