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Posted to users@continuum.apache.org by Bruno Antunes <be...@dei.uc.pt> on 2010/05/13 17:03:38 UTC

Problem when acessing Continuum

Hi,

Sorry if I'm bothering you with something simple, but I've searched the web
and couldn't find any help on this.

I'm using Continuum 1.3.6 on a Tomcat 6.0.20 server and a MySQL database.

Whenever I don't access Continuum for some time, when I open the main page I
get a strange error. If I reload the page this error disappears and
Continuum works just fine. This happens over and over. I'm also using
Archiva and the same happens. I suppose it is something related with
database access. 

Do you have any idea on what could be causing this error?

The error I get is:

Error Occured
org.codehaus.plexus.redback.users.UserManagerException: Unable to get object
'org.codehaus.plexus.redback.users.jdo.JdoUser', id 'guest', fetch-group
'null' from jdo store.

Stack Trace
org.codehaus.plexus.redback.users.UserManagerException: Unable to get object
'org.codehaus.plexus.redback.users.jdo.JdoUser', id 'guest', fetch-group
'null' from jdo store.
	at
org.codehaus.plexus.redback.users.jdo.JdoUserManager.getObjectById(JdoUserMa
nager.java:417)
	at
org.codehaus.plexus.redback.users.jdo.JdoUserManager.findUser(JdoUserManager
.java:339)
	at
org.codehaus.plexus.redback.users.AbstractUserManager.getGuestUser(AbstractU
serManager.java:114)
	at
org.codehaus.plexus.redback.users.cached.CachedUserManager.getGuestUser(Cach
edUserManager.java:148)
	at
org.codehaus.plexus.redback.users.configurable.ConfigurableUserManager.getGu
estUser(ConfigurableUserManager.java:128)
	at
org.codehaus.plexus.redback.authorization.rbac.RbacAuthorizer.isAuthorized(R
bacAuthorizer.java:100)
	at
org.codehaus.plexus.redback.system.DefaultSecuritySystem.authorize(DefaultSe
curitySystem.java:167)
	at
org.codehaus.plexus.redback.system.DefaultSecuritySystem.isAuthorized(Defaul
tSecuritySystem.java:179)
	at
org.apache.maven.continuum.web.action.ContinuumActionSupport.checkAuthorizat
ion(ContinuumActionSupport.java:150)
	at
org.apache.maven.continuum.web.action.ContinuumActionSupport.checkAuthorizat
ion(ContinuumActionSupport.java:132)
	at
org.apache.maven.continuum.web.action.ContinuumActionSupport.checkViewProjec
tGroupAuthorization(ContinuumActionSupport.java:178)
	at
org.apache.maven.continuum.web.action.GroupSummaryAction.isAuthorized(GroupS
ummaryAction.java:118)
	at
org.apache.maven.continuum.web.action.GroupSummaryAction.execute(GroupSummar
yAction.java:61)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39
)
	at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl
.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at
com.opensymphony.xwork2.DefaultActionInvocation.invokeAction(DefaultActionIn
vocation.java:404)
	at
com.opensymphony.xwork2.DefaultActionInvocation.invokeActionOnly(DefaultActi
onInvocation.java:267)
	at
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocati
on.java:229)
	at
org.apache.struts2.interceptor.MessageStoreInterceptor.intercept(MessageStor
eInterceptor.java:195)
	at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionI
nvocation.java:224)
	at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionI
nvocation.java:223)
	at
com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack
.java:455)
	at
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocati
on.java:221)
	at
com.opensymphony.xwork2.interceptor.DefaultWorkflowInterceptor.doIntercept(D
efaultWorkflowInterceptor.java:221)
	at
com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(Method
FilterInterceptor.java:86)
	at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionI
nvocation.java:224)
	at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionI
nvocation.java:223)
	at
com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack
.java:455)
	at
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocati
on.java:221)
	at
com.opensymphony.xwork2.validator.ValidationInterceptor.doIntercept(Validati
onInterceptor.java:150)
	at
org.apache.struts2.interceptor.validation.AnnotationValidationInterceptor.do
Intercept(AnnotationValidationInterceptor.java:48)
	at
com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(Method
FilterInterceptor.java:86)
	at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionI
nvocation.java:224)
	at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionI
nvocation.java:223)
	at
com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack
.java:455)
	at
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocati
on.java:221)
	at
org.apache.maven.continuum.web.interceptor.ForceContinuumConfigurationInterc
eptor.intercept(ForceContinuumConfigurationInterceptor.java:70)
	at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionI
nvocation.java:224)
	at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionI
nvocation.java:223)
	at
com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack
.java:455)
	at
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocati
on.java:221)
	at
org.codehaus.plexus.redback.struts2.interceptor.PolicyEnforcementInterceptor
.intercept(PolicyEnforcementInterceptor.java:115)
	at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionI
nvocation.java:224)
	at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionI
nvocation.java:223)
	at
com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack
.java:455)
	at
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocati
on.java:221)
	at
org.codehaus.plexus.redback.struts2.interceptor.SecureActionInterceptor.inte
rcept(SecureActionInterceptor.java:173)
	at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionI
nvocation.java:224)
	at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionI
nvocation.java:223)
	at
com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack
.java:455)
	at
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocati
on.java:221)
	at
com.opensymphony.xwork2.interceptor.DefaultWorkflowInterceptor.doIntercept(D
efaultWorkflowInterceptor.java:221)
	at
com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(Method
FilterInterceptor.java:86)
	at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionI
nvocation.java:224)
	at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionI
nvocation.java:223)
	at
com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack
.java:455)
	at
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocati
on.java:221)
	at
com.opensymphony.xwork2.validator.ValidationInterceptor.doIntercept(Validati
onInterceptor.java:150)
	at
org.apache.struts2.interceptor.validation.AnnotationValidationInterceptor.do
Intercept(AnnotationValidationInterceptor.java:48)
	at
com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(Method
FilterInterceptor.java:86)
	at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionI
nvocation.java:224)
	at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionI
nvocation.java:223)
	at
com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack
.java:455)
	at
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocati
on.java:221)
	at
com.opensymphony.xwork2.interceptor.ConversionErrorInterceptor.intercept(Con
versionErrorInterceptor.java:123)
	at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionI
nvocation.java:224)
	at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionI
nvocation.java:223)
	at
com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack
.java:455)
	at
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocati
on.java:221)
	at
com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(Parame
tersInterceptor.java:184)
	at
com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(Method
FilterInterceptor.java:86)
	at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionI
nvocation.java:224)
	at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionI
nvocation.java:223)
	at
com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack
.java:455)
	at
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocati
on.java:221)
	at
com.opensymphony.xwork2.interceptor.StaticParametersInterceptor.intercept(St
aticParametersInterceptor.java:105)
	at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionI
nvocation.java:224)
	at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionI
nvocation.java:223)
	at
com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack
.java:455)
	at
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocati
on.java:221)
	at
org.apache.struts2.interceptor.CheckboxInterceptor.intercept(CheckboxInterce
ptor.java:83)
	at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionI
nvocation.java:224)
	at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionI
nvocation.java:223)
	at
com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack
.java:455)
	at
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocati
on.java:221)
	at
org.apache.struts2.interceptor.FileUploadInterceptor.intercept(FileUploadInt
erceptor.java:207)
	at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionI
nvocation.java:224)
	at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionI
nvocation.java:223)
	at
com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack
.java:455)
	at
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocati
on.java:221)
	at
com.opensymphony.xwork2.interceptor.ModelDrivenInterceptor.intercept(ModelDr
ivenInterceptor.java:74)
	at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionI
nvocation.java:224)
	at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionI
nvocation.java:223)
	at
com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack
.java:455)
	at
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocati
on.java:221)
	at
com.opensymphony.xwork2.interceptor.ScopedModelDrivenInterceptor.intercept(S
copedModelDrivenInterceptor.java:127)
	at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionI
nvocation.java:224)
	at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionI
nvocation.java:223)
	at
com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack
.java:455)
	at
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocati
on.java:221)
	at
org.apache.struts2.interceptor.ProfilingActivationInterceptor.intercept(Prof
ilingActivationInterceptor.java:107)
	at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionI
nvocation.java:224)
	at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionI
nvocation.java:223)
	at
com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack
.java:455)
	at
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocati
on.java:221)
	at
org.apache.struts2.interceptor.debugging.DebuggingInterceptor.intercept(Debu
ggingInterceptor.java:206)
	at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionI
nvocation.java:224)
	at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionI
nvocation.java:223)
	at
com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack
.java:455)
	at
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocati
on.java:221)
	at
com.opensymphony.xwork2.interceptor.ChainingInterceptor.intercept(ChainingIn
terceptor.java:115)
	at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionI
nvocation.java:224)
	at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionI
nvocation.java:223)
	at
com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack
.java:455)
	at
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocati
on.java:221)
	at
com.opensymphony.xwork2.interceptor.I18nInterceptor.intercept(I18nIntercepto
r.java:143)
	at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionI
nvocation.java:224)
	at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionI
nvocation.java:223)
	at
com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack
.java:455)
	at
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocati
on.java:221)
	at
com.opensymphony.xwork2.interceptor.PrepareInterceptor.doIntercept(PrepareIn
terceptor.java:121)
	at
com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(Method
FilterInterceptor.java:86)
	at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionI
nvocation.java:224)
	at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionI
nvocation.java:223)
	at
com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack
.java:455)
	at
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocati
on.java:221)
	at
org.apache.struts2.interceptor.ServletConfigInterceptor.intercept(ServletCon
figInterceptor.java:170)
	at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionI
nvocation.java:224)
	at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionI
nvocation.java:223)
	at
com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack
.java:455)
	at
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocati
on.java:221)
	at
com.opensymphony.xwork2.interceptor.AliasInterceptor.intercept(AliasIntercep
tor.java:123)
	at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionI
nvocation.java:224)
	at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionI
nvocation.java:223)
	at
com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack
.java:455)
	at
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocati
on.java:221)
	at
com.opensymphony.xwork2.interceptor.ExceptionMappingInterceptor.intercept(Ex
ceptionMappingInterceptor.java:176)
	at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionI
nvocation.java:224)
	at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionI
nvocation.java:223)
	at
com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack
.java:455)
	at
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocati
on.java:221)
	at
org.codehaus.plexus.redback.struts2.interceptor.AutoLoginInterceptor.interce
pt(AutoLoginInterceptor.java:167)
	at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionI
nvocation.java:224)
	at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionI
nvocation.java:223)
	at
com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack
.java:455)
	at
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocati
on.java:221)
	at
org.codehaus.plexus.redback.struts2.interceptor.ForceAdminUserInterceptor.in
tercept(ForceAdminUserInterceptor.java:77)
	at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionI
nvocation.java:224)
	at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionI
nvocation.java:223)
	at
com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack
.java:455)
	at
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocati
on.java:221)
	at
org.codehaus.plexus.redback.struts2.interceptor.EnvironmentCheckInterceptor.
intercept(EnvironmentCheckInterceptor.java:97)
	at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionI
nvocation.java:224)
	at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionI
nvocation.java:223)
	at
com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack
.java:455)
	at
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocati
on.java:221)
	at
org.apache.struts2.impl.StrutsActionProxy.execute(StrutsActionProxy.java:50)
	at
org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:504)
	at
org.apache.struts2.dispatcher.FilterDispatcher.doFilter(FilterDispatcher.jav
a:422)
	at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application
FilterChain.java:235)
	at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh
ain.java:206)
	at
com.opensymphony.module.sitemesh.filter.PageFilter.parsePage(PageFilter.java
:118)
	at
com.opensymphony.module.sitemesh.filter.PageFilter.doFilter(PageFilter.java:
52)
	at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application
FilterChain.java:235)
	at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh
ain.java:206)
	at
org.apache.struts2.dispatcher.ActionContextCleanUp.doFilter(ActionContextCle
anUp.java:99)
	at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application
FilterChain.java:235)
	at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh
ain.java:206)
	at
org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(Char
acterEncodingFilter.java:96)
	at
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestF
ilter.java:76)
	at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application
FilterChain.java:235)
	at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh
ain.java:206)
	at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.ja
va:233)
	at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.ja
va:191)
	at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128
)
	at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102
)
	at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java
:109)
	at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
	at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:849)
	at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http
11Protocol.java:583)
	at
org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:454)
	at java.lang.Thread.run(Thread.java:619)

Thanks in advance,
Bruno Antunes


Re: Problem when acessing Continuum

Posted by Wendy Smoak <ws...@gmail.com>.
On Thu, May 13, 2010 at 11:03 AM, Bruno Antunes <be...@dei.uc.pt> wrote:
> I'm using Continuum 1.3.6 on a Tomcat 6.0.20 server and a MySQL database.
>
> Whenever I don't access Continuum for some time, when I open the main page I
> get a strange error. If I reload the page this error disappears and
> Continuum works just fine. This happens over and over. I'm also using
> Archiva and the same happens. I suppose it is something related with
> database access.
>
> Do you have any idea on what could be causing this error?
>
> The error I get is:
>
> Error Occured
> org.codehaus.plexus.redback.users.UserManagerException: Unable to get object
> 'org.codehaus.plexus.redback.users.jdo.JdoUser', id 'guest', fetch-group
> 'null' from jdo store.

>From the stack trace, it's a problem in Redback, which both Continuum
and Archiva use to handle user auth.

If it's repeatable, go ahead and open a JIRA issue (if there isn't one already).

But we need more details.  When you say you don't access it for a long
time and then open the main page... are you logged in and then letting
it sit for a while?  By open the page, do you mean in a fresh browser
window, or are you refreshing an old one?

How did you set it up for the alternate MySQL database?

Can you try the latest 1.4.0 and see if it still happens there?

-- 
Wendy