Support Center Plus, java error

Occasionally when working in SCP, our users experience this error, any advice would be great, thanks:

HTTP Status 500 -

type Exception report

message

description The server encountered an internal error () that prevented it from fulfilling this request.

exception

javax.servlet.ServletException: java.sql.SQLException: Invalid state, the Connection object is closed.

com.adventnet.client.view.web.StateFilter.doFilter(StateFilter.java:51)

com.adventnet.authentication.ContextChangeDetector.doFilter(ContextChangeDetector.java:112)

org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:75)

root cause

javax.servlet.ServletException: java.sql.SQLException: Invalid state, the Connection object is closed.

org.apache.struts.action.RequestProcessor.processException(RequestProcessor.java:545)

org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:486)

org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:274)

org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482)

org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:525)

javax.servlet.http.HttpServlet.service(HttpServlet.java:717)

javax.servlet.http.HttpServlet.service(HttpServlet.java:810)

com.adventnet.client.view.web.StateFilter.doFilter(StateFilter.java:38)

com.adventnet.authentication.ContextChangeDetector.doFilter(ContextChangeDetector.java:112)

org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:75)

root cause

com.adventnet.persistence.DataAccessException: java.sql.SQLException: Invalid state, the Connection object is closed.

com.adventnet.persistence.internal.GetUtil.get(GetUtil.java:102)

com.adventnet.persistence.DataAccess.get(DataAccess.java:1154)

com.adventnet.persistence.DataAccess.get(DataAccess.java:1144)

com.adventnet.persistence.ejb.interceptor.CorePersistenceInterceptor.process(CorePersistenceInterceptor.java:110)

com.adventnet.persistence.ejb.interceptor.NotificationPersistenceInterceptor.process(NotificationPersistenceInterceptor.java:148)

com.adventnet.cis.ejb.CISPersistenceInterceptor.process(CISPersistenceInterceptor.java:59)

com.adventnet.persistence.ejb.PersistenceBean.get(PersistenceBean.java:225)

sun.reflect.GeneratedMethodAccessor91.invoke(Unknown Source)

sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

java.lang.reflect.Method.invoke(Unknown Source)

org.jboss.ejb.StatelessSessionContainer$ContainerInterceptor.invoke(StatelessSessionContainer.java:683)

com.adventnet.authentication.interceptor.SecurityInterceptor.invoke(SecurityInterceptor.java:108)

org.jboss.resource.connectionmanager.CachedConnectionInterceptor.invoke(CachedConnectionInterceptor.java:186)

org.jboss.ejb.plugins.StatelessSessionInstanceInterceptor.invoke(StatelessSessionInstanceInterceptor.java:72)

org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(AbstractTxInterceptor.java:84)

org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(TxInterceptorCMT.java:315)

org.jboss.ejb.plugins.TxInterceptorCMT.invoke(TxInterceptorCMT.java:148)

org.jboss.ejb.plugins.LogInterceptor.invoke(LogInterceptor.java:191)

org.jboss.ejb.plugins.ProxyFactoryFinderInterceptor.invoke(ProxyFactoryFinderInterceptor.java:122)

org.jboss.ejb.StatelessSessionContainer.internalInvoke(StatelessSessionContainer.java:331)

org.jboss.ejb.Container.invoke(Container.java:709)

sun.reflect.GeneratedMethodAccessor46.invoke(Unknown Source)

sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

java.lang.reflect.Method.invoke(Unknown Source)

org.jboss.mx.server.ReflectedDispatcher.dispatch(ReflectedDispatcher.java:60)

org.jboss.mx.server.Invocation.dispatch(Invocation.java:62)

org.jboss.mx.server.Invocation.dispatch(Invocation.java:54)

org.jboss.mx.server.Invocation.invoke(Invocation.java:82)

org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:197)

org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:473)

org.jboss.invocation.local.LocalInvoker.invoke(LocalInvoker.java:97)

org.jboss.invocation.InvokerInterceptor.invoke(InvokerInterceptor.java:90)

org.jboss.proxy.TransactionInterceptor.invoke(TransactionInterceptor.java:46)

com.adventnet.authentication.interceptor.ClientPrincipalAssociator.invoke(ClientPrincipalAssociator.java:47)

org.jboss.proxy.ejb.StatelessSessionInterceptor.invoke(StatelessSessionInterceptor.java:100)

com.adventnet.persistence.ejb.interceptor.ConstructDOProxyInterceptor.invoke(ConstructDOProxyInterceptor.java:37)

org.jboss.proxy.ClientContainer.invoke(ClientContainer.java:85)

$Proxy65.get(Unknown Source)

com.adventnet.servicedesk.workorder.action.WorkOrderListAction.execute(WorkOrderListAction.java:121)

org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:484)