Exception saving public query in new module

Hello,

i have installed b21 on Windows Server 2003 with MySQL 5.x.

I have created a new module and now i want to create first public query.
If i want to save the query information i get an exception. Parameters
for the query information are:

Name: all issues
Availability: module or personal
Location: <the new mocule>

In turbine.log i dont find any log entry.

Stack trace:

org.apache.turbine.TurbineException: java.lang.RuntimeException: Please
check turbine.log for more info: Failed to retrieve users
	at
org.apache.turbine.pipeline.DefaultActionValve.invoke(DefaultActionValve
.java:104)
	at
org.apache.turbine.pipeline.TurbinePipeline.invokeNext(TurbinePipeline.j
ava:231)
	at
org.apache.turbine.pipeline.DefaultACLCreationValve.invoke(DefaultACLCre
ationValve.java:127)
	at
org.apache.turbine.pipeline.TurbinePipeline.invokeNext(TurbinePipeline.j
ava:231)
	at
org.tigris.scarab.pipeline.SetLocaleValve.invoke(SetLocaleValve.java:112
)
	at
org.apache.turbine.pipeline.TurbinePipeline.invokeNext(TurbinePipeline.j
ava:231)
	at
org.tigris.scarab.pipeline.FreshenUserValve.invoke(FreshenUserValve.java
:189)
	at
org.apache.turbine.pipeline.TurbinePipeline.invokeNext(TurbinePipeline.j
ava:231)
	at
org.apache.turbine.pipeline.DefaultSessionValidationValve.invoke(Default
SessionValidationValve.java:131)
	at
org.apache.turbine.pipeline.TurbinePipeline.invokeNext(TurbinePipeline.j
ava:231)
	at
org.apache.turbine.pipeline.DefaultLoginValve.invoke(DefaultLoginValve.j
ava:109)
	at
org.apache.turbine.pipeline.TurbinePipeline.invokeNext(TurbinePipeline.j
ava:231)
	at
org.tigris.scarab.pipeline.AnonymousLoginValve.invoke(AnonymousLoginValv
e.java:63)
	at
org.apache.turbine.pipeline.TurbinePipeline.invokeNext(TurbinePipeline.j
ava:231)
	at
org.tigris.scarab.pipeline.NTLMLoginValve.invoke(NTLMLoginValve.java:70)
	at
org.apache.turbine.pipeline.TurbinePipeline.invokeNext(TurbinePipeline.j
ava:231)
	at
org.apache.turbine.pipeline.DefaultSessionTimeoutValve.invoke(DefaultSes
sionTimeoutValve.java:121)
	at
org.apache.turbine.pipeline.TurbinePipeline.invokeNext(TurbinePipeline.j
ava:231)
	at
org.tigris.scarab.pipeline.DetermineTargetValve.invoke(DetermineTargetVa
lve.java:138)
	at
org.apache.turbine.pipeline.TurbinePipeline.invokeNext(TurbinePipeline.j
ava:231)
	at
org.apache.turbine.pipeline.DetermineActionValve.invoke(DetermineActionV
alve.java:107)
	at
org.apache.turbine.pipeline.TurbinePipeline.invokeNext(TurbinePipeline.j
ava:231)
	at
org.tigris.scarab.pipeline.SetInfoMessageValve.invoke(SetInfoMessageValv
e.java:85)
	at
org.apache.turbine.pipeline.TurbinePipeline.invokeNext(TurbinePipeline.j
ava:231)
	at
org.tigris.scarab.pipeline.ResetCacheValve.invoke(ResetCacheValve.java:7
7)
	at
org.apache.turbine.pipeline.TurbinePipeline.invokeNext(TurbinePipeline.j
ava:231)
	at
org.tigris.scarab.pipeline.DetermineCharsetValve.invoke(DetermineCharset
Valve.java:103)
	at
org.apache.turbine.pipeline.TurbinePipeline.invokeNext(TurbinePipeline.j
ava:231)
	at
org.tigris.scarab.pipeline.TimingInfoValve.invoke(TimingInfoValve.java:1
31)
	at
org.apache.turbine.pipeline.TurbinePipeline.invokeNext(TurbinePipeline.j
ava:231)
	at
org.apache.turbine.pipeline.TurbinePipeline.invoke(TurbinePipeline.java:
213)
	at org.apache.turbine.Turbine.doGet(Turbine.java:298)
	at org.apache.turbine.Turbine.doPost(Turbine.java:343)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
	at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applica
tionFilterChain.java:247)
	at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilt
erChain.java:193)
	at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValv
e.java:256)
	at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.i
nvokeNext(StandardPipeline.java:643)
	at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:4
80)
	at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
	at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValv
e.java:191)
	at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.i
nvokeNext(StandardPipeline.java:643)
	at
org.apache.catalina.authenticator.AuthenticatorBase.invoke(Authenticator
Base.java:494)
	at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.i
nvokeNext(StandardPipeline.java:641)
	at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:4
80)
	at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
	at
org.apache.catalina.core.StandardContext.invoke(StandardContext.java:241
7)
	at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java
:180)
	at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.i
nvokeNext(StandardPipeline.java:643)
	at
org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherVa
lve.java:171)
	at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.i
nvokeNext(StandardPipeline.java:641)
	at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java
:172)
	at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.i
nvokeNext(StandardPipeline.java:641)
	at
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:577
)
	at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.i
nvokeNext(StandardPipeline.java:641)
	at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:4
80)
	at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
	at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.
java:174)
	at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.i
nvokeNext(StandardPipeline.java:643)
	at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:4
80)
	at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
	at
org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:193)
	at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:78
1)
	at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processC
onnection(Http11Protocol.java:549)
	at
org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:58
9)
	at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool
.java:666)
	at java.lang.Thread.run(Thread.java:619)
Caused by: java.lang.RuntimeException: Please check turbine.log for more
info: Failed to retrieve users
	at
org.tigris.scarab.om.ScarabModule.getUsers(ScarabModule.java:344)
	at
org.tigris.scarab.om.ScarabModule.getUsers(ScarabModule.java:289)
	at org.tigris.scarab.actions.Search.doSavequery(Search.java:413)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.jav
a:39)
	at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessor
Impl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at
org.apache.turbine.modules.actions.TemplateAction.executeEvents(Template
Action.java:160)
	at
org.apache.turbine.modules.ActionEvent.perform(ActionEvent.java:144)
	at
org.apache.turbine.modules.actions.TemplateSecureAction.perform(Template
SecureAction.java:90)
	at
org.apache.turbine.modules.ActionEvent.execute(ActionEvent.java:179)
	at
org.apache.turbine.pipeline.DefaultActionValve.executeAction(DefaultActi
onValve.java:139)
	at
org.apache.turbine.pipeline.DefaultActionValve.invoke(DefaultActionValve
.java:99)
	... 67 more 

Kind regards,
Daniel