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java.sql.SQLException: Already closed. 	at org.apache.commons.dbcp.PoolableConnection.close(PoolableConnection.java:84)	at org.apache.commons.dbcp.PoolingDataSource$PoolGuardConnectionWrapper.close(PoolingDataSource.java:181)	at org.springframework.jdbc.datasource.DataSourceUtils.doReleaseConnection(DataSourceUtils.java:313)	at org.springframework.jdbc.datasource.TransactionAwareDataSourceProxy$TransactionAwareInvocationHandler.invoke(TransactionAwareDataSourceProxy.java:166)	at $Proxy0.close(Unknown Source)	at org.springframework.orm.ibatis.SqlMapClientTemplate.execute(SqlMapClientTemplate.java:218)	at org.springframework.orm.ibatis.SqlMapClientTemplate.queryForObject(SqlMapClientTemplate.java:271)	at org.nexweb.qol.gcc.ibatis.dao.sqlmaps.UserSqlMapDAO.getUserByUserNameAndRealmName(UserSqlMapDAO.java:26)	at org.nexweb.qol.gcc.ibatis.services.UserService.getUserByUserNameAndRealmName(UserService.java:30)	at org.nexweb.qol.gcc.actions.WelcomeAction.execute(WelcomeAction.java:71)	at org.apache.struts.chain.commands.servlet.ExecuteAction.execute(ExecuteAction.java:58)	at org.apache.struts.chain.commands.AbstractExecuteAction.execute(AbstractExecuteAction.java:67)	at org.apache.struts.chain.commands.ActionCommandBase.execute(ActionCommandBase.java:51)	at org.apache.commons.chain.impl.ChainBase.execute(ChainBase.java:190)	at org.apache.commons.chain.generic.LookupCommand.execute(LookupCommand.java:304)	at org.apache.commons.chain.impl.ChainBase.execute(ChainBase.java:190)	at org.apache.struts.chain.ComposableRequestProcessor.process(ComposableRequestProcessor.java:283)	at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1913)	at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:449)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:743)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)	at com.evermind.server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:713)	at com.evermind.server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:370)	at com.evermind.server.http.ServletRequestDispatcher.unprivileged_forward(ServletRequestDispatcher.java:259)	at com.evermind.server.http.ServletRequestDispatcher.access$100(ServletRequestDispatcher.java:51)	at com.evermind.server.http.ServletRequestDispatcher$2.oc4jRun(ServletRequestDispatcher.java:193)	at oracle.oc4j.security.OC4JSecurity.doPrivileged(OC4JSecurity.java:283)	at com.evermind.server.http.ServletRequestDispatcher.forward(ServletRequestDispatcher.java:198)	at com.evermind.server.http.EvermindPageContext.forward(EvermindPageContext.java:392)	at _jsp._forward._jspService(_forward.java:48)	at com.orionserver.http.OrionHttpJspPage.service(OrionHttpJspPage.java:59)	at oracle.jsp.runtimev2.JspPageTable.service(JspPageTable.java:462)	at oracle.jsp.runtimev2.JspServlet.internalService(JspServlet.java:594)	at oracle.jsp.runtimev2.JspServlet.service(JspServlet.java:518)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)	at com.evermind.server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:713)	at com.evermind.server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:370)	at com.evermind.server.http.HttpRequestHandler.doProcessRequest(HttpRequestHandler.java:871)	at com.evermind.server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:453)	at com.evermind.server.http.HttpRequestHandler.serveOneRequest(HttpRequestHandler.java:221)	at com.evermind.server.http.HttpRequestHandler.run(HttpRequestHandler.java:122)	at com.evermind.server.http.HttpRequestHandler.run(HttpRequestHandler.java:111)	at oracle.oc4j.network.ServerSocketReadHandler$SafeRunnable.run(ServerSocketReadHandler.java:260)	at com.evermind.util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:303)	at java.lang.Thread.run(Thread.java:595)