error by login

same issue of MRM-1428

2010-12-15 11:12:22,085 [TP-Processor19] ERROR org.apache.xmlrpc.server.XmlRpcStreamServer - execute: Error while performing request
org.codehaus.plexus.redback.users.UserManagerException: Unable to get object 'org.codehaus.plexus.redback.users.jdo.JdoUser', id 'admin', fetch-group 'null' from jdo store.
at org.codehaus.plexus.redback.users.jdo.JdoUserManager.getObjectById(JdoUserManager.java:417)
at org.codehaus.plexus.redback.users.jdo.JdoUserManager.findUser(JdoUserManager.java:339)
at org.codehaus.plexus.redback.authentication.users.UserManagerAuthenticator.authenticate(UserManagerAuthenticator.java:84)
at org.codehaus.plexus.redback.authentication.DefaultAuthenticationManager.authenticate(DefaultAuthenticationManager.java:84)
at org.codehaus.plexus.redback.system.DefaultSecuritySystem.authenticate(DefaultSecuritySystem.java:94)
at org.apache.maven.continuum.xmlrpc.server.ContinuumXmlRpcServlet$1.isAuthorized(ContinuumXmlRpcServlet.java:157)
at org.apache.maven.continuum.xmlrpc.server.ContinuumXmlRpcMetaDataHandler.execute(ContinuumXmlRpcMetaDataHandler.java:102)
at org.apache.xmlrpc.server.XmlRpcServerWorker.execute(XmlRpcServerWorker.java:43)
at org.apache.xmlrpc.server.XmlRpcServer.execute(XmlRpcServer.java:83)
at org.apache.xmlrpc.server.XmlRpcStreamServer.execute(XmlRpcStreamServer.java:191)
at org.apache.xmlrpc.webserver.XmlRpcServletServer.execute(XmlRpcServletServer.java:104)
at org.apache.maven.continuum.xmlrpc.server.ContinuumXmlRpcServlet.doPost(ContinuumXmlRpcServlet.java:190)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:647)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
at org.apache.struts2.dispatcher.FilterDispatcher.doFilter(FilterDispatcher.java:416)
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.opensymphony.module.sitemesh.filter.PageFilter.doFilter(PageFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
at org.apache.struts2.dispatcher.ActionContextCleanUp.doFilter(ActionContextCleanUp.java:99)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:96)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:172)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174)
at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:200)
at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:283)
at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:773)
at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:703)
at org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:895)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689)
at java.lang.Thread.run(Thread.java:619)