Swap the default database to McKoi

java.lang.IllegalStateException: getAttribute: Session already invalidated
at org.apache.catalina.session.StandardSession.getAttribute(StandardSession.java:954)
at org.apache.catalina.session.StandardSessionFacade.getAttribute(StandardSessionFacade.java:171)
at com.opensymphony.webwork.lifecycle.SessionLifecycleListener.sessionDestroyed(SessionLifecycleListener.java:61)
at org.apache.catalina.session.StandardSession.expire(StandardSession.java:659)
at org.apache.catalina.session.StandardSession.expire(StandardSession.java:608)
at org.apache.catalina.session.StandardManager.processExpires(StandardManager.java:793)
at org.apache.catalina.session.StandardManager.run(StandardManager.java:870)
at java.lang.Thread.run(Thread.java:536)

2003-09-18 13:59:30 StandardWrapperValve[simple-display]: Servlet.service() for servlet simple-display threw exception
com.atlassian.confluence.InfrastructureException: Couldn't close the session
at com.atlassian.confluence.persistence.hibernate.HibernateThreadLocal.endSession(HibernateThreadLocal.java:76)
at com.atlassian.confluence.setup.ConfluenceConfigurationFilter.doFilter(ConfluenceConfigurationFilter.java:84)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:213)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
at com.atlassian.util.profiling.filters.ProfilingFilter.doFilter(ProfilingFilter.java:148)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:213)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:256)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2416)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:171)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:172)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:223)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:601)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:392)
at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:565)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:619)
at java.lang.Thread.run(Thread.java:536)
Caused by: net.sf.hibernate.JDBCException: Cannot open connection: The database is already in use by another process
at net.sf.hibernate.impl.BatcherImpl.openConnection(BatcherImpl.java:265)
at net.sf.hibernate.impl.SessionImpl.connect(SessionImpl.java:3231)
at net.sf.hibernate.impl.SessionImpl.connection(SessionImpl.java:3214)
at com.atlassian.confluence.persistence.hibernate.HibernateThreadLocal.endSession(HibernateThreadLocal.java:58)
... 33 more
Caused by: java.sql.SQLException: The database is already in use by another process
at org.hsqldb.Trace.getError(Unknown Source)
at org.hsqldb.Trace.error(Unknown Source)
at org.hsqldb.Log.open(Unknown Source)
at org.hsqldb.Database$Logger.openLog(Unknown Source)
at org.hsqldb.Database.open(Unknown Source)
at org.hsqldb.Database.<init>(Unknown Source)
at org.hsqldb.jdbcConnection.openStandalone(Unknown Source)
at org.hsqldb.jdbcConnection.<init>(Unknown Source)
at org.hsqldb.jdbcDriver.connect(Unknown Source)
at java.sql.DriverManager.getConnection(DriverManager.java:512)
at java.sql.DriverManager.getConnection(DriverManager.java:140)
at net.sf.hibernate.connection.DriverManagerConnectionProvider.getConnection(DriverManagerConnectionProvider.java:97)
at net.sf.hibernate.impl.BatcherImpl.openConnection(BatcherImpl.java:262)
... 36 more