Unexpected Error

login as dell with standard password

Go to Admin Users and Roles page

Click on Roles tab

In the pagenation goto page 2

in page 2 put goto @ and then click on the Previous arrow (i.e go to page 1) and you get UN expected error page

9/6 17:07:22.862 LoggingMappingExceptionResolver.resolveException Error start ---------------------------
9/6 17:07:22.864 LoggingMappingExceptionResolver.resolveException Full Url: /app/admin/role?perpage=10&page=1
9/6 17:07:22.864 LoggingMappingExceptionResolver.resolveException perpage = [10]
9/6 17:07:22.864 LoggingMappingExceptionResolver.resolveException page = [1]
9/6 17:07:22.865 LoggingMappingExceptionResolver.resolveException User: "dell" (33DC6C84-57EA-B3B7-3AC4-F645C73130A5)
9/6 17:07:22.867 LoggingMappingExceptionResolver.resolveException 
org.springframework.orm.hibernate3.HibernateSystemException: Illegal attempt to associate a collection with two open sessions; nested exception is org.hibernate.HibernateException: Illegal attempt to associate a collection with two open sessions
	at org.springframework.orm.hibernate3.SessionFactoryUtils.convertHibernateAccessException(SessionFactoryUtils.java:676)
	at org.springframework.orm.hibernate3.HibernateAccessor.convertHibernateAccessException(HibernateAccessor.java:412)
	at org.springframework.orm.hibernate3.HibernateTemplate.doExecute(HibernateTemplate.java:424)
	at org.springframework.orm.hibernate3.HibernateTemplate.executeWithNativeSession(HibernateTemplate.java:374)
	at org.springframework.orm.hibernate3.HibernateTemplate.update(HibernateTemplate.java:716)
	at org.springframework.orm.hibernate3.HibernateTemplate.update(HibernateTemplate.java:712)
	at com.common.server.hibernate.HibernateTransactionTemplate$3.doInTransaction(Unknown Source)
	at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:128)
	at com.common.server.hibernate.HibernateTransactionTemplate.update(Unknown Source)
	at com.aquafold.aquadataserver.core.manager.UserManager.updateUser(Unknown Source)
	at com.aquafold.aquadataserver.core.manager.UserManager.updateSort(Unknown Source)
	at com.aquafold.aquadataserver.ui.controllers.admin.EditSystemRoleController.browseRoles(Unknown Source)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at org.springframework.web.bind.annotation.support.HandlerMethodInvoker.doInvokeMethod(HandlerMethodInvoker.java:421)
	at org.springframework.web.bind.annotation.support.HandlerMethodInvoker.invokeHandlerMethod(HandlerMethodInvoker.java:136)
	at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java:326)
	at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:313)
	at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:875)
	at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:807)
	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:571)
	at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:501)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	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:235)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
	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:298)
	at org.apache.coyote.http11.Http11NioProcessor.process(Http11NioProcessor.java:883)
	at org.apache.coyote.http11.Http11NioProtocol$Http11ConnectionHandler.process(Http11NioProtocol.java:721)
	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:2258)
	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
	at java.lang.Thread.run(Unknown Source)
Caused by: org.hibernate.HibernateException: Illegal attempt to associate a collection with two open sessions
	at org.hibernate.collection.AbstractPersistentCollection.setCurrentSession(AbstractPersistentCollection.java:432)
	at org.hibernate.event.def.OnUpdateVisitor.processCollection(OnUpdateVisitor.java:66)
	at org.hibernate.event.def.AbstractVisitor.processValue(AbstractVisitor.java:124)
	at org.hibernate.event.def.AbstractVisitor.processValue(AbstractVisitor.java:84)
	at org.hibernate.event.def.AbstractVisitor.processEntityPropertyValues(AbstractVisitor.java:78)
	at org.hibernate.event.def.AbstractVisitor.process(AbstractVisitor.java:146)
	at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.performUpdate(DefaultSaveOrUpdateEventListener.java:316)
	at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.entityIsDetached(DefaultSaveOrUpdateEventListener.java:246)
	at org.hibernate.event.def.DefaultUpdateEventListener.performSaveOrUpdate(DefaultUpdateEventListener.java:56)
	at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:93)
	at org.hibernate.impl.SessionImpl.fireUpdate(SessionImpl.java:591)
	at org.hibernate.impl.SessionImpl.update(SessionImpl.java:579)
	at org.hibernate.impl.SessionImpl.update(SessionImpl.java:571)
	at org.springframework.orm.hibernate3.HibernateTemplate$14.doInHibernate(HibernateTemplate.java:719)
	at org.springframework.orm.hibernate3.HibernateTemplate.doExecute(HibernateTemplate.java:419)
	... 41 more
9/6 17:07:22.870 LoggingMappingExceptionResolver.resolveException Error END ---------------------------