03-22/15:26:42 ERROR ["http-bio-/0.0.0.0-8080"-exec-6] CommonExecuter - Connection com.mysql.jdbc.Connection@2304a962 is closed.
java.sql.SQLException: Connection com.mysql.jdbc.Connection@2304a962 is closed.
        at org.apache.commons.dbcp.DelegatingConnection.checkOpen(DelegatingConnection.java:398)
        at org.apache.commons.dbcp.DelegatingConnection.prepareStatement(DelegatingConnection.java:279)
        at bitel.billing.server.contract.bean.CommentPatternManager.updateContractComment(CommentPatternManager.java:57)
        at bitel.billing.server.contract.action.ActionUpdateParameterType1.doAction(ActionUpdateParameterType1.java:60)
        at bitel.billing.server.Executer.doModule(Unknown Source)
        at bitel.billing.server.Executer$1.run(Unknown Source)
        at java.security.AccessController.doPrivileged(Native Method)
        at javax.security.auth.Subject.doAs(Subject.java:396)
        at bitel.billing.server.Executer.doPost(Unknown Source)
        at bitel.billing.server.Executer.doGet(Unknown Source)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:304)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
        at ru.dsi.bgbilling.web.filter.XDFilter.doFilter(XDFilter.java:56)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
        at bitel.billing.server.filters.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:48)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:240)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:164)
        at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:462)
        at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:563)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:164)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:403)
        at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:301)
        at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:162)
        at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:309)
        at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
        at java.lang.Thread.run(Thread.java:662)