PLSQL webservice eventually gives java.sql.SQLException: Closed Connection

Hi
We have created a web service based on a plsql procedure in jdeveloper 10.1.2.1.0
We deployed the web service to .ear file in jdev and then deployed that ear file to our 10.1.2 app server.
The web service works fine for a short time but then gives
java.sql.SQLException: Closed Connection
The web service is not used frequently so it's possible the connection is timing out. I haven't tested invoking the web service perodically to see if it remains alive.
I tried to follow this note on metalink
https://metalink.oracle.com/metalink/plsql/f?p=130:14:2526430465590485698::::p14_database_id,p14_docid,p14_show_header,p14_show_help,p14_black_frame,p14_font:NOT,370209.1,1,1,1,helvetica
Which wants me to make changes to the file <webservice_name>Base.java in our case GPAuditBase.java
My questions are:
1. In the jdeveloper navigator there is a file called GPAuditBase.sqlj but it does not contain all the code mentioned in the metalink note. Specifically the finally{} section. Do I need to edit the generated GPAuditBase.java that is saved in the src folder for the project? That file seems to contain the code mentioned in the metalink note.
2. If so, how are those changes reflected in the ear file that I want to deploy to my app server? Do I change the files in the src folder and then deploy to ear in jdev
thanks
paul schweiger

ahem...
bump

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[/i PLEASE HELP
Thanks
Rina

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When accidentaly toplink loose connection with database server for short time and request coming from client in the same time toplink close connection with database server and generate the following exception:
Exception [TOPLINK-4002] (Oracle TopLink - 10g Developer Preview 3 (10.1.3.0 ) (Build 041116)): oracle.toplink.exceptions.DatabaseException
Internal Exception: java.sql.SQLException: Closed ConnectionError Code: 17008
 at oracle.toplink.exceptions.DatabaseException.sqlException(DatabaseException.java:272)
Problem is because toplink does not renew the connection with database server. Anybody know how to resolve this situation ?
Mention:
Application is build around toplink server session that serve client giving them clientsession and unitofwork.

Hi
I am getting this exception randomly, I want my application to be flexible. I am using Glassfish V2.1.1, Toplink Essentials, Windows linux, Oracle 11g database.
Below is the stacktrace :
Local Exception Stack:
Exception [TOPLINK-4002] (Oracle TopLink Essentials - 2.1 (Build b31g-fcs (10/19/2009))): oracle.toplink.essentials.exceptions.DatabaseException
Internal Exception: java.sql.SQLException: Closed Connection
Error Code: 17008
Call: SELECT t0.CRITICALITY, t0.USER_TAG_IDENT, t0.SEGMENT_GROUP_YN, t0.NAME, t0.GMT_LAST_UPDATED, t0.LONG_DESCRIPTION, t0.CS_TYPE_DB_SITE, t0.CS_TYPE_DB_ID, t0.CS_TYPE_CODE, t0.SEGMENT_SITE, t0.SEGMENT_ID, t0.RSTAT_TYPE_CODE, t0.LAST_UPD_DB_SITE, t0.LAST_UPD_DB_ID, t0.SG_DB_SITE, t0.SG_DB_ID, t0.SG_TYPE_CODE FROM SEGMENT t0, ROW_STATUS_TYPE t2, SEGMENT_TYPE t1 WHERE ((((t0.SEGMENT_ID NOT IN (SELECT t3.CHILD_SG_ID FROM SEGMENT_CHILD t3 WHERE (t3.SEGMENT_SITE = ?)) AND (t0.SEGMENT_SITE = ?)) AND (t1.SG_TYPE_CODE = ?)) AND (t2.RSTAT_TYPE_COD = ?)) AND (((t1.SG_DB_SITE = t0.SG_DB_SITE) AND ((t1.SG_DB_ID = t0.SG_DB_ID) AND (t1.SG_TYPE_CODE = t0.SG_TYPE_CODE))) AND (t2.RSTAT_TYPE_COD = t0.RSTAT_TYPE_CODE))) ORDER BY t0.USER_TAG_IDENT ASC
 bind => [0000000100000001, 0000000100000001, 9, 1]
Query: ReportQuery(com.esrg.jpa.Segment)
 at oracle.toplink.essentials.exceptions.DatabaseException.sqlException(DatabaseException.java:319)
 at oracle.toplink.essentials.internal.databaseaccess.DatabaseAccessor.basicExecuteCall(DatabaseAccessor.java:566)
 at oracle.toplink.essentials.internal.databaseaccess.DatabaseAccessor.executeCall(DatabaseAccessor.java:452)
 at oracle.toplink.essentials.threetier.ServerSession.executeCall(ServerSession.java:473)
 at oracle.toplink.essentials.internal.queryframework.DatasourceCallQueryMechanism.executeCall(DatasourceCallQueryMechanism.java:228)
 at oracle.toplink.essentials.internal.queryframework.DatasourceCallQueryMechanism.executeCall(DatasourceCallQueryMechanism.java:214)
 at oracle.toplink.essentials.internal.queryframework.DatasourceCallQueryMechanism.executeSelectCall(DatasourceCallQueryMechanism.java:285)
 at oracle.toplink.essentials.internal.queryframework.DatasourceCallQueryMechanism.selectAllRows(DatasourceCallQueryMechanism.java:615)
 at oracle.toplink.essentials.internal.queryframework.ExpressionQueryMechanism.selectAllRowsFromTable(ExpressionQueryMechanism.java:2416)
 at oracle.toplink.essentials.internal.queryframework.ExpressionQueryMechanism.selectAllReportQueryRows(ExpressionQueryMechanism.java:2382)
 at oracle.toplink.essentials.queryframework.ReportQuery.executeDatabaseQuery(ReportQuery.java:802)
 at oracle.toplink.essentials.queryframework.DatabaseQuery.execute(DatabaseQuery.java:628)
 at oracle.toplink.essentials.queryframework.ObjectLevelReadQuery.execute(ObjectLevelReadQuery.java:692)
 at oracle.toplink.essentials.queryframework.ObjectLevelReadQuery.executeInUnitOfWork(ObjectLevelReadQuery.java:746)
 at oracle.toplink.essentials.internal.sessions.UnitOfWorkImpl.internalExecuteQuery(UnitOfWorkImpl.java:2244)
 at oracle.toplink.essentials.internal.sessions.AbstractSession.executeQuery(AbstractSession.java:952)
 at oracle.toplink.essentials.internal.sessions.AbstractSession.executeQuery(AbstractSession.java:924)
 at oracle.toplink.essentials.internal.ejb.cmp3.base.EJBQueryImpl.executeReadQuery(EJBQueryImpl.java:367)
 at oracle.toplink.essentials.internal.ejb.cmp3.base.EJBQueryImpl.getResultList(EJBQueryImpl.java:478)
 at com.sun.enterprise.util.QueryWrapper.getResultList(QueryWrapper.java:196)
 at com.esrgtech.erm.viewer.segment.eRMViewerSegmentBean.findSystem(eRMViewerSegmentBean.java:537)
 at com.esrgtech.erm.viewer.segment.eRMViewerSegmentBean.getTree(eRMViewerSegmentBean.java:131)
 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
 at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
 at java.lang.reflect.Method.invoke(Method.java:597)
 at com.sun.enterprise.security.application.EJBSecurityManager.runMethod(EJBSecurityManager.java:1011)
 at com.sun.enterprise.security.SecurityUtil.invoke(SecurityUtil.java:175)
 at com.sun.ejb.containers.BaseContainer.invokeTargetBeanMethod(BaseContainer.java:2929)
 at com.sun.ejb.containers.BaseContainer.intercept(BaseContainer.java:4020)
 at com.sun.ejb.containers.EJBLocalObjectInvocationHandler.invoke(EJBLocalObjectInvocationHandler.java:197)
 at com.sun.ejb.containers.EJBLocalObjectInvocationHandlerDelegate.invoke(EJBLocalObjectInvocationHandlerDelegate.java:127)
 at $Proxy60.getTree(Unknown Source)
 at com.esrgtech.erm.DataViewerSession.getTree(DataViewerSession.java:237)
 at com.esrgtech.erm.ui.dashboard.DashboardLeft.buildTree(DashboardLeft.java:88)
 at com.esrgtech.erm.ui.dashboard.DashboardLeft.<init>(DashboardLeft.java:48)
 at com.esrgtech.erm.ui.dashboard.Dashboard.createLeftContent(Dashboard.java:55)
 at com.esrgtech.erm.ui.base.WebPageTwoColLeft180.buildPage(WebPageTwoColLeft180.java:58)
 at com.esrgtech.erm.ui.dashboard.Dashboard.<init>(Dashboard.java:34)
 at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
 at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
 at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
 at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
 at org.apache.wicket.session.DefaultPageFactory.createPage(DefaultPageFactory.java:192)
 at org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:57)
 at org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:81)
 at com.esrgtech.erm.ui.signin.SignInPanel.onSignInSucceeded(SignInPanel.java:236)
 at com.esrgtech.erm.ui.signin.SignInPanel$SignInForm.onSubmit(SignInPanel.java:116)
 at org.apache.wicket.markup.html.form.Form.delegateSubmit(Form.java:1536)
 at org.apache.wicket.markup.html.form.Form.process(Form.java:925)
 at org.apache.wicket.markup.html.form.Form.onFormSubmitted(Form.java:887)
 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
 at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
 at java.lang.reflect.Method.invoke(Method.java:597)
 at org.apache.wicket.RequestListenerInterface.invoke(RequestListenerInterface.java:182)
 at org.apache.wicket.request.target.component.listener.ListenerInterfaceRequestTarget.processEvents(ListenerInterfaceRequestTarget.java:73)
 at org.apache.wicket.request.AbstractRequestCycleProcessor.processEvents(AbstractRequestCycleProcessor.java:92)
 at org.apache.wicket.RequestCycle.processEventsAndRespond(RequestCycle.java:1250)
 at org.apache.wicket.RequestCycle.step(RequestCycle.java:1329)
 at org.apache.wicket.RequestCycle.steps(RequestCycle.java:1428)
 at org.apache.wicket.RequestCycle.request(RequestCycle.java:545)
 at org.apache.wicket.protocol.http.WicketFilter.doGet(WicketFilter.java:479)
 at org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:312)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:246)
 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:214)
 at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:313)
 at org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java:287)
 at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:218)
 at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:648)
 at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:593)
 at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:94)
 at com.sun.enterprise.web.PESessionLockingStandardPipeline.invoke(PESessionLockingStandardPipeline.java:98)
 at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:222)
 at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:648)
 at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:593)
 at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:587)
 at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:1093)
 at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:166)
 at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:648)
 at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:593)
 at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:587)
 at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:1093)
 at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:291)
 at com.sun.enterprise.web.connector.grizzly.DefaultProcessorTask.invokeAdapter(DefaultProcessorTask.java:666)
 at com.sun.enterprise.web.connector.grizzly.DefaultProcessorTask.doProcess(DefaultProcessorTask.java:597)
 at com.sun.enterprise.web.connector.grizzly.DefaultProcessorTask.process(DefaultProcessorTask.java:872)
 at com.sun.enterprise.web.connector.grizzly.DefaultReadTask.executeProcessorTask(DefaultReadTask.java:341)
 at com.sun.enterprise.web.connector.grizzly.DefaultReadTask.doTask(DefaultReadTask.java:263)
 at com.sun.enterprise.web.connector.grizzly.DefaultReadTask.doTask(DefaultReadTask.java:214)
 at com.sun.enterprise.web.connector.grizzly.TaskBase.run(TaskBase.java:264)
 at com.sun.enterprise.web.connector.grizzly.ssl.SSLWorkerThread.run(SSLWorkerThread.java:106)
Caused by: java.sql.SQLException: Closed Connection
 at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:112)
 at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:146)
 at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:208)
 at oracle.jdbc.driver.PhysicalConnection.prepareStatement(PhysicalConnection.java:840)
 at oracle.jdbc.driver.PhysicalConnection.prepareStatement(PhysicalConnection.java:759)
 at com.sun.gjc.spi.base.ConnectionHolder.prepareStatement(ConnectionHolder.java:475)
 at oracle.toplink.essentials.internal.databaseaccess.DatabaseAccessor.prepareStatement(DatabaseAccessor.java:1162)
 at oracle.toplink.essentials.internal.databaseaccess.DatabaseCall.prepareStatement(DatabaseCall.java:612)
 at oracle.toplink.essentials.internal.databaseaccess.DatabaseAccessor.basicExecuteCall(DatabaseAccessor.java:485)
 ... 90 more
Need Help.....

Java.sql.SQLException: Closed Statement

I'm having a problem with my Java code trying to access an Oracle 10g database through the JDBC driver using the Oracle XML Publisher.
We generate a number of different reports, but one report consistently fails with the error: java.sql.SQLException: Closed Statement
It only happens in the production environment, which has significantly more data than the test and development environments.
One interesting (!) observation is that the error occurs after 10 minutes to the second (almost). Which leads me to think it is a timeout related problem, but am aware that this could be a red herring.
And finally, the code is being run within a job sheduled using the Quartz Scheduler v1.6.5.
Any help would be appreciated.
Many Thanks
Lawrence
Here is the stack trace:
java.sql.SQLException: Closed Statement: getMetaData
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:112)
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:146)
at oracle.jdbc.driver.OracleResultSetImpl.getMetaData(OracleResultSetImpl.java:128)
at com.mchange.v2.c3p0.impl.NewProxyResultSet.getMetaData(NewProxyResultSet.java:47)
at oracle.apps.xdo.dataengine.XMLPGEN.processSQLDataSource(Unknown Source)
at oracle.apps.xdo.dataengine.XMLPGEN.writeData(Unknown Source)
at oracle.apps.xdo.dataengine.XMLPGEN.writeGroup(Unknown Source)
at oracle.apps.xdo.dataengine.XMLPGEN.writeGroup(Unknown Source)
at oracle.apps.xdo.dataengine.XMLPGEN.processSQLDataSource(Unknown Source)
at oracle.apps.xdo.dataengine.XMLPGEN.writeData(Unknown Source)
at oracle.apps.xdo.dataengine.XMLPGEN.writeGroupStructure(Unknown Source)
at oracle.apps.xdo.dataengine.XMLPGEN.processData(Unknown Source)
at oracle.apps.xdo.dataengine.XMLPGEN.processXML(Unknown Source)
at oracle.apps.xdo.dataengine.XMLPGEN.writeXML(Unknown Source)
at oracle.apps.xdo.dataengine.DataProcessor.processDataStructre(Unknown Source)
at oracle.apps.xdo.dataengine.DataProcessor.processData(Unknown Source)
at com.tmobile.sett.file.invoice.InvoiceFileFactory.generateXML(InvoiceFileFactory.java:157)
at com.tmobile.sett.file.invoice.InvoiceFileFactory.generateStatements(InvoiceFileFactory.java:365)
at com.tmobile.sett.file.invoice.InvoiceFileFactory.generateInvoices(InvoiceFileFactory.java:457)
at com.tmobile.sett.file.invoice.StatementGeneratorJob.execute(StatementGeneratorJob.java:34)
at org.quartz.core.JobRunShell.run(JobRunShell.java:202)
at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:525)
Here is the code:
private void generateXML(String xmlTemplate, String xmlFilename, Hashtable parameters) {
DataProcessor dataProcessor = new DataProcessor();
log.debug("generateXML: xmlTemplate {}, xmlFilename {}", xmlTemplate, xmlFilename);
try {
// Set Data Template to be executed
dataProcessor.setDataTemplate(xmlTemplate);
// Obtain a new Connection from the Pool
Connection conn = HibernateUtil.getConnection();
if (conn == null)
log.debug("conn is null after getCall");
if (conn.isClosed())
log.debug("conn is closed after getCall");
// Set the Connection for the dataProcessor
dataProcessor.setConnection(conn);
if (conn.isClosed())
log.debug("conn is closed after setConnection");
dataProcessor.setParameters(parameters);
if (conn.isClosed())
log.debug("conn is closed after setParameters");
// Specify the output directory and file for the data file
dataProcessor.setOutput(xmlFilename);
if (conn.isClosed())
log.debug("conn is closed after setOutput");
// Process the data template
dataProcessor.processData();
if (conn.isClosed())
log.debug("conn is closed after processData");
// Return the connection to the pool
conn.close();
} catch (Exception e) {
System.err.println("Error generating XML with the following parameters:");
System.err.println("xmlTemplate=" + xmlTemplate);
System.err.println("xmlFilename=" + xmlFilename);
System.err.println("Here's the stack trace");
e.printStackTrace();
System.exit(1);
}

I have made some progress in understanding the problem...
Basically, your comment about threads made me look at the code from a threads perspective. There are only three objects used, log4j, oracleXML Publisher and hibernate. Discounting log4j, the Oracle object is created, opened and closed within the procedure, so I concluded that hibernate was the most likely cause of the problem (i know, theres an element of educated guesswork in this).
Anyway, I found the hibernate timeouts (all around 300 seconds) and increased them to 3000 seconds... and lo and behold the reports are generated successfully, although some of them take over 20 minutes each.
So, this is a performance problem with the SQL itself:
SELECT service
, reply
, ROUND(SUM(DECODE(op, 3, 0, count))* :uplift,0) x_events
, ROUND(SUM(DECODE(op, 3, count, 0))* :uplift,0) y_events
FROM aggregate
WHERE ref_time >= :period_start
AND ref_time < :period_end
AND feed = 13
AND agreement = :agreement
AND line = 1
GROUP BY service, reply
ORDER BY 1,2
The SQL in question is querying data for a specific month from a monthly partitioned table that contains about 11 million records a month. We currently have 99 partitions.
Executing the sql in Toad / Sql developer / sqlplus takes around 20 seconds...so why 20 minutes?
Looking in the session browser, I can see that the 20 minute query is looking through all 99 partitions where the 20 second query is only looking at 1 partition for the month in question.
I'm not sure if this is heading off topic for the forum thread, but the question now is...
Why is Oracle using a clearly innefficient execution plan when we are using a query with bound variables and how do we get it to use a more efficient execution plan?

Exception java.sql.SQLException: This Connection has either timed out

I am using JRUN 4 & SQL Server 2000
and Driver is Type 4 SQL Server 2000.
Type 4 driver : com.microsoft.jdbc.sqlserver.SQLServerDriver
I am able to connect & fire the query but while insertion record it gives me this error.
Exception java.sql.SQLException: This Connection has either timed out
or been closed, and it has returned to its pool. You must re-acquire the Connect
ion.
java.sql.SQLException: This Connection has either timed out or been closed, and
it has returned to its pool. You must re-acquire the Connection.
at jrun.sql.JRunConnectionHandle.assertConnectionExists(JRunConnectionHa
ndle.java:50)
at jrun.sql.JRunConnectionHandle.rollback(JRunConnectionHandle.java:107)
at krisolshipping.common.LMaintain.postData(LMaintain.java:563)
at krisolshipping.securities.SUser.doPost(SUser.java:186)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at jrun.servlet.ServletInvoker.invoke(ServletInvoker.java:91)
at jrun.servlet.JRunInvokerChain.invokeNext(JRunInvokerChain.java:42)
at jrun.servlet.JRunRequestDispatcher.invoke(JRunRequestDispatcher.java:
226)
at jrun.servlet.ServletEngineService.dispatch(ServletEngineService.java:
527)
at jrun.servlet.http.WebService.invokeRunnable(WebService.java:172)
at jrunx.scheduler.ThreadPool$ThreadThrottle.invokeRunnable(ThreadPool.j
ava:451)
Krisol 03 Exception java.sql.SQLException: This Connection has either timed out
or been closed, and it has returned to its pool. at jrunx.scheduler.Worke
rThread.run(WorkerThread.java:66)
You must re-acquire the Connection.
java.sql.SQLException: This Connection has either timed out or been closed, and
it has returned to its pool. You must re-acquire the Connection.

Did you by any chance close the connection?
The following appendix in the connection URL is recommended for M$ SQL:
jdbc:microsoft:sqlserver://mssql:1433;SelectMethod=Cursor

Java.sql.SQLRecoverableException: Closed Connection

code in java :-V(JDeveloper)
for(int i=0; i<result.size(); i++){
OpportunityData OPPORTUNITY_NAME = result.get(i); --------> I am able to get the results displayed in console
service.connMgr = ConnectionManager.getConnectionManager();
System.out.println("Got the connection to the database"); -------> it displays this, I got the connection to DB
service.complete = new CallableStatementDAO("test2", "UpdateAAA", "OPPORTUNITY_NAME"); -----> this inturn calls CallableStatementDAO cstms.execute();
backend :- (PL/SQL)
wrote package, body, procedure and the key line is below :-
insert into table_table (OPPORTUNITY_NAME) VALUES((OPPORUNITY_NAME));
I checked if connection is usable and it returns True..it does return True
CallableStatementDAO
public void callProcedure(String value) throws SQLException {
if (paramNames != null) {
cstmt.setString(paramName, value);
cstmt.execute();
error message :-
java.sql.SQLRecoverableException: Closed Connection
 at oracle.jdbc.driver.OracleStatement.ensureOpen(OracleStatement.java:4017)
 at oracle.jdbc.driver.OracleCallableStatement.execute(OracleCallableStatement.java:4705)
 at oracle.jdbc.driver.OraclePreparedStatementWrapper.execute(OraclePreparedStatementWrapper.java:1374)
 at dao.CallableStatementDAO.callProcedure(CallableStatementDAO.java:62)
 at integration.IntegrationService.main(IntegrationService.java:194)
Process exited with exit code 0.

java.sql.SQLRecoverableException: Closed Connection: OraclePooledConnection.getConnection() - SQLException Ocurred:Closed Connection
 at oracle.jdbc.pool.OraclePooledConnection.getConnection(OraclePooledConnection.java:326)
 at dao.ConnectionManager.releaseConnection(ConnectionManager.java:72)
 at dao.CallableStatementDAO.finalize(CallableStatementDAO.java:82)
 at java.lang.ref.Finalizer.invokeFinalizeMethod(Native Method)
 at java.lang.ref.Finalizer.runFinalizer(Finalizer.java:83)
 at java.lang.ref.Finalizer.access$100(Finalizer.java:14)
 at java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:160)
java.sql.SQLRecoverableException: Closed Connection: OraclePooledConnection.getConnection() - SQLException Ocurred:Closed Connection
 at oracle.jdbc.pool.OraclePooledConnection.getConnection(OraclePooledConnection.java:326)
 at dao.ConnectionManager.releaseConnection(ConnectionManager.java:72)
 at dao.CallableStatementDAO.finalize(CallableStatementDAO.java:82)
 at java.lang.ref.Finalizer.invokeFinalizeMethod(Native Method)
 at java.lang.ref.Finalizer.runFinalizer(Finalizer.java:83)
 at java.lang.ref.Finalizer.access$100(Finalizer.java:14)
 at java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:160)
java.sql.SQLRecoverableException: Closed Connection: OraclePooledConnection.getConnection() - SQLException Ocurred:Closed Connection
 at oracle.jdbc.pool.OraclePooledConnection.getConnection(OraclePooledConnection.java:326)
 at dao.ConnectionManager.releaseConnection(ConnectionManager.java:72)
 at dao.CallableStatementDAO.finalize(CallableStatementDAO.java:82)
 at java.lang.ref.Finalizer.invokeFinalizeMethod(Native Method)
 at java.lang.ref.Finalizer.runFinalizer(Finalizer.java:83)
 at java.lang.ref.Finalizer.access$100(Finalizer.java:14)
 at java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:160)
java.sql.SQLRecoverableException: Closed Connection: OraclePooledConnection.getConnection() - SQLException Ocurred:Closed Connection
 at oracle.jdbc.pool.OraclePooledConnection.getConnection(OraclePooledConnection.java:326)
 at dao.ConnectionManager.releaseConnection(ConnectionManager.java:72)
 at dao.CallableStatementDAO.finalize(CallableStatementDAO.java:82)
 at java.lang.ref.Finalizer.invokeFinalizeMethod(Native Method)
 at java.lang.ref.Finalizer.runFinalizer(Finalizer.java:83)
 at java.lang.ref.Finalizer.access$100(Finalizer.java:14)
 at java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:160)

Oracle error: java.sql.sqlrecoverableException: Closed Connection

need help on this closed connection
getting oracle error: java.sql.sqlrecoverableException: Closed Connection when running a java application using tomcat api to oracle 11g database EE 11.2.0.3.0 on windows 2008 R2
The process is reading data from an Oracle database using user_sdo_geom_metadata , memory allocated to DB is 5GB, java pool size 1G allocated , below is the code which gets data from Oracle
<NamedDataSourceDefinition:NamedDataSourceDefinition xmlns:NamedDataSourceDefinition="http://www.mapinfo.com/mxp" xmlns="http://www.mapinfo.com/mxp" xmlns:gml="http://www.opengis.net/gml"xmlns:ns2="http://www.mapinfo.com/midev/service/common/v1" xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:v1="http://www.mapinfo.com/midev/service/namedresource/v1"version="MXP_WorkSpace_1_5">
<ConnectionSet/>
<DataSourceDefinitionSet>
<DBDataSourceDefinition id="TXLANDMARKS">
<DataSourceName>txlandmarks</DataSourceName>
<ConnectionMember>
<InlineDBConnection dbType="oracle">
<JDBCDriverParameters>
<JDBCUrl>jdbc:oracle:thin:@NOIORAENT2K8-64:1521:FMETEST</JDBCUrl>
<DriverPropertySet>
<Property name="user" value="NOIDADATADEV"/>
<Property name="password" value="mndata"/>
</DriverPropertySet>
</JDBCDriverParameters>
</InlineDBConnection>
</ConnectionMember>
<DBTable owner="NOIDADATADEV" useQuotes="true">TXLANDMARKS</DBTable>
</DBDataSourceDefinition>
</DataSourceDefinitionSet>
<DataSourceRef ref="TXLANDMARKS"/>
</NamedDataSourceDefinition:NamedDataSourceDefinition>
Both the machines can ping to each other successfully, no firewall exists between them, these are connection setting been used in pooling-datasource-factory.properties
poolingDataSourceFactoryClass=com.mapinfo.midev.dbms.jdbc.TomcatDataSourceFactory
# what follows are properties specific to com.mapinfo.midev.dbms.jdbc.TomcatDataSourceFactory
# defaultAutoCommit - the default auto commit state of the connection. if
# not set the assumes the driver default
# defaultAutoCommit =
# (int) The maximum number of active connections that can be allocated from # this pool at the same time. The default value is 20
maxActive = 10
# (int) The maximum number of connections that should be kept in the pool at # all times. Default value is maxActive. Idle connections are checked # periodically (if enabled) and connections that been idle for longer than
# minEvictableIdleTimeMillis will be released.
maxIdle = 10
# (int) The minimum number of established connections that should be kept in the pool at all times. The connection pool can shrink below this number if # validation queries fail. Default value is 10
minIdle = 5
# (int)The initial number of connections that are created when the pool is # started. Default value is 10
initialSize = 5
# (int) The maximum number of milliseconds that the pool will wait (when # there are no available connections) for a connection to be returned before # throwing an exception. Default value is 30000 (30 seconds)
# maxWaitMillis = 30000
# (int) The number of milliseconds to sleep between runs of the idle # connection validation/cleaner thread. This value should not be set under 1
# second. It dictates how often we check for idle, abandoned connections,
# and how often we validate idle connections. The default value is 5000
# (5 seconds).
# timeBetweenEvictionRunsMillis = 5000
# (int) The minimum amount of time an object may sit idle in the pool before
# it is eligible for eviction. The default value is 60000 (60 seconds).
# minEvictableIdleTimeMillis = 60000
# (boolean) Flag to remove abandoned connections if they exceed the
# removeAbandonedTimout. If set to true a connection is considered abandoned
# and eligible for removal if it has been in use longer than the
# removeAbandonedTimeout Setting this to true can recover db connections
# from applications that fail to close a connection. See also
# logAbandoned The default value is false.
# removeAbandoned = false
# (int) Timeout in seconds before an abandoned(in use) connection can be
# removed. The default value is 60 (60 seconds). The value should be set to
# the longest running query your applications might have.
# removeAbandonedTimeout = 60
# (boolean) Flag to log stack traces for application code which abandoned a
# Connection. Logging of abandoned Connections adds overhead for every
# Connection borrow because a stack trace has to be generated. The default
# value is false.
# logAbandoned = false
# (long) Time in milliseconds to keep this connection. When a connection is
# returned to the pool, the pool will check to see if the now
# - time-when-connected > maxAge has been reached, and if so, it closes the
# connection rather than returning it to the pool. The default value is 0,
# which implies that connections will be left open and no age check will be
# done upon returning the connection to the pool.
# maxAgeMillis = 0

Hi,
I understand that you have raised a SR for this issue which is being worked upon by our team.
Additionally, please note that the "Closed connection" error typically happens because a timeout parameter of some sort timed out the connection. This could be a parameter specified in your datasource, in your application code, or network (such as a firewall).
You may also want to -
1. check your database to be sure it is not timing out connections.
2. Make sure your network is running efficiently and that it can provide fast connections,
3. Check your Java Virtual Machine (JVM) Code Cache For Oracle Enterprise Data Quality for any memory related issues
Thanks,
Shwet

Java.sql.SQLException: Lost connection to server during query

Hi all,
While I execute the sql query, i get the following exception
java.sql.SQLException: Lost connection to server during query
     at org.gjt.mm.mysql.Connection.execSQL(Unknown Source)
     at org.gjt.mm.mysql.PreparedStatement.executeQuery(Unknown Source)
     at org.jboss.resource.adapter.jdbc.WrappedPreparedStatement.executeQuery(WrappedPreparedStatement.java:302)
Below is my code to execute the query.
String sqlQuery = "some query";
    Connection dbConnection=null;
    PreparedStatement stmt = null;
    ResultSet rs = null;
    try
      dbConnection=getDBConnection(); //perform lookup on the data source,   and return the connection
      stmt= prepareStmt(dbConnection, sqlQuery);
      rs = stmt.executeQuery(); //fail here
      //more below......
    catch(Exception e)
      throw e;
    finally
      releaseResource(stmt,dbConnection);
      closeResultSet(rs);
    }The DB i am using is MySql 4.0, Server: Jboss3.2. Could I know the possible reason that will cause the above exception?
Thanks for your help

Anyone would help me.
I am using linux, resin, jdk1.3 and Mysql plus mm.mysql driver. I write some static class which open one database connection for the class. I found that if the Server is ideal for period of time. When I doing the query again I meet same error message.
ava.sql.SQLException: Lost connection to server during query
at org.gjt.mm.mysql.Connection.execSQL(Unknown Source)
at org.gjt.mm.mysql.Connection.execSQL(Unknown Source)
at org.gjt.mm.mysql.Statement.executeQuery(Unknown Source)
at org.gjt.mm.mysql.jdbc2.Statement.executeQuery(Unknown Source)
at com.ccnet.desktop.Grouping.getDomainBanner(Grouping.java:1835)

Could someone help me with this error: java.sql.SQLException: Closed Connec

My code:
<%@ include file="../setupcache.jsp"%>
<%
if(connectionPool_dig==null){
%>
Could not connect to database. Please try again, thank!
<%
 return ;
Connection con = connectionPool_dig.getConnection();
if(con==null){
%>
Could not connect to database. Please try again, thank!
<%
 return;
 String file = request.getParameter("m_FILE");
 file = "a";
 String sql = " SELECT *"+
 " FROM "+
 " FILEUPLOAD, SUBJECT"+
 " WHERE "+
 " FILEUPLOAD.SUBJECTCODE = SUBJECT.CODE AND UPPER(FILEUPLOAD.FILENAME) LIKE(UPPER(?))";
 PreparedStatement stmt = con.prepareStatement(sql);
 stmt.setString(1,"%"+file+"%");
 ResultSet rs = stmt.executeQuery();
 while(rs.next()){
 out.println(" "+rs.getString(1));
 out.println(" "+rs.getString(2));
 out.println(" "+rs.getString(3));
 out.println(" "+rs.getString(4));
 rs.close();
 stmt.close();
try{
 con.close();
}catch(SQLException e){}
%>
it usualy generate that error (once wrong then right then wrong....), but if I don't close connection (con.close), it work well. Could some one help me!

Hi,
I think that it should be better that returning the Connection
instance back to the Connection Pool. The connection
should not be close by you. it should controlled by the
connection pool mechanism. So I think that you should
check out your connection pool usage document for the
right usage.
If your code is the case, the connection in connection
pool will get less and your connection pool mechanism
may need to reallocate a new one for application. I
don't think that it is right.
good luck,
Alfred Wu

Java.sql.SQLException: Pool connect failed: javax.security.auth.login.FailedLoginException: Authentication Failed

I am trying to connect to SQL Server 2000 from a JSP (Weblogic 7.0) using a
connection pool. (Without datasource etc). I am getting the above mentioned
exception.
If i connect through sun.jdbc.odbc it works fine. I dont know what i am
doing wrong. Can anyone help out with this problem.
thnx in advance.
Franky

Franky Ronald D'Souza wrote:
I am trying to connect to SQL Server 2000 from a JSP (Weblogic 7.0) using a
connection pool. (Without datasource etc). I am getting the above mentioned
exception.
If i connect through sun.jdbc.odbc it works fine. I dont know what i am
doing wrong. Can anyone help out with this problem.Whose SQLServer drier are you using? Can you connect to the DBMS using the
driver in a simple standalone program?
Joe
>
>
thnx in advance.
Franky

SQLException: Closed Connection, SQL state [null]; error code [17002]

Hello All,
I am supporting a Java 5 project on Tomcat. We've used Spring and Stored Procedure in the project.
Recently we deployed our application in a GoLive environment and have started seeing Timeout errors in log files. After around two days we also have to restart Tomcat as users are no more able to login to access the application.
Same application runs fine without any timeout issues on another environment.
The only difference between two environments is that the Go-Live env has a firewall between Tomcat and Database and the other environment hosts both Tomcat and Database on same machine (i.e. no firewall).
For GoLive env the only port open on firewall for JDBC connection is 1521 and is used in the connection string url for obtaining the connections.
When there is a Timeout error, the N/w admin guy observed that the JDBC connection was not attempted on 1521 port, but on some random port which is not open on firewall, due to which the Database server logs also do not show entry for this connection attempt as it gets blocked by the firewall.
I am not sure why a randam port should be used to connect when a specific port is mentioned in the connection url? Also what can be making this port switching?
Application uses Apache DBCP with Spring to obtain connections.
Has anyone experienced similar errors?
Any suggestions/help on this issue is greatly appreciated!
Many Thanks,
CD
===============================
Error Log Extract:
Error while extracting database product name - falling back to empty error codes
org.springframework.jdbc.support.MetaDataAccessException: Error while extracting DatabaseMetaData; nested exception is java.sql.SQLException: Closed Connection
java.sql.SQLException: Closed Connection
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:112)
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:146)
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:208)
at oracle.jdbc.driver.PhysicalConnection.getMetaData(PhysicalConnection.java:1605)
at org.apache.commons.dbcp.DelegatingConnection.getMetaData(DelegatingConnection.java:247)
at org.apache.commons.dbcp.DelegatingConnection.getMetaData(DelegatingConnection.java:247)
at org.apache.commons.dbcp.PoolingDataSource$PoolGuardConnectionWrapper.getMetaData(PoolingDataSource.java:231)
at org.springframework.jdbc.support.JdbcUtils.extractDatabaseMetaData(JdbcUtils.java:172)
at org.springframework.jdbc.support.JdbcUtils.extractDatabaseMetaData(JdbcUtils.java:207)
at org.springframework.jdbc.support.SQLErrorCodesFactory.getErrorCodes(SQLErrorCodesFactory.java:187)
at org.springframework.jdbc.support.SQLErrorCodeSQLExceptionTranslator.setDataSource(SQLErrorCodeSQLExceptionTranslator.java:126)
at org.springframework.jdbc.support.SQLErrorCodeSQLExceptionTranslator.<init>(SQLErrorCodeSQLExceptionTranslator.java:92)
at org.springframework.jdbc.support.JdbcAccessor.getExceptionTranslator(JdbcAccessor.java:96)
at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:294)
at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:348)
at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:352)
at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:356)
at com.o2.morse.dao.impl.sql.UserDaoImpl.batchLoad(UserDaoImpl.java:371)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:287)
at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:181)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:148)
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:170)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:176)
at $Proxy3.batchLoad(Unknown Source)
at com.o2.morse.domain.User.doHousekeeping(User.java:667)
at com.o2.morse.domain.User$$FastClassByCGLIB$$372ff70b.invoke(<generated>)
at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:149)
at org.springframework.aop.framework.Cglib2AopProxy$CglibMethodInvocation.invokeJoinpoint(Cglib2AopProxy.java:705)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:148)
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:170)
at org.springframework.aop.framework.Cglib2AopProxy$DynamicAdvisedInterceptor.intercept(Cglib2AopProxy.java:643)
at com.o2.morse.domain.User$$EnhancerByCGLIB$$d5ac966a.doHousekeeping(<generated>)
at com.o2.morse.scheduler.EndOfDay.run(EndOfDay.java:63)
at com.o2.morse.scheduler.EndOfDay$$FastClassByCGLIB$$3b2d4927.invoke(<generated>)
at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:149)
at org.springframework.aop.framework.Cglib2AopProxy$CglibMethodInvocation.invokeJoinpoint(Cglib2AopProxy.java:705)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:148)
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:170)
at org.springframework.aop.framework.Cglib2AopProxy$DynamicAdvisedInterceptor.intercept(Cglib2AopProxy.java:643)
at com.o2.morse.scheduler.EndOfDay$$EnhancerByCGLIB$$488a9f86.run(<generated>)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.springframework.util.MethodInvoker.invoke(MethodInvoker.java:248)
at org.springframework.scheduling.quartz.MethodInvokingJobDetailFactoryBean$MethodInvokingJob.executeInternal(MethodInvokingJobDetailFactoryBean.java:165)
at org.springframework.scheduling.quartz.QuartzJobBean.execute(QuartzJobBean.java:90)
at org.quartz.core.JobRunShell.run(JobRunShell.java:202)
at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:525)
Could not close JDBC Connection
java.sql.SQLException: Already closed.
at org.apache.commons.dbcp.PoolableConnection.close(PoolableConnection.java:77)
at org.apache.commons.dbcp.PoolingDataSource$PoolGuardConnectionWrapper.close(PoolingDataSource.java:180)
at org.springframework.jdbc.datasource.DataSourceUtils.doReleaseConnection(DataSourceUtils.java:286)
at org.springframework.jdbc.datasource.DataSourceUtils.releaseConnection(DataSourceUtils.java:247)
at org.springframework.jdbc.datasource.DataSourceTransactionManager.doCleanupAfterCompletion(DataSourceTransactionManager.java:297)
at org.springframework.transaction.support.AbstractPlatformTransactionManager.cleanupAfterCompletion(AbstractPlatformTransactionManager.java:754)
at org.springframework.transaction.support.AbstractPlatformTransactionManager.processRollback(AbstractPlatformTransactionManager.java:615)
at org.springframework.transaction.support.AbstractPlatformTransactionManager.rollback(AbstractPlatformTransactionManager.java:560)
at org.springframework.transaction.interceptor.TransactionAspectSupport.doCloseTransactionAfterThrowing(TransactionAspectSupport.java:284)
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:100)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:170)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:176)
at $Proxy3.batchLoad(Unknown Source)
at com.o2.morse.domain.User.doHousekeeping(User.java:667)
at com.o2.morse.domain.User$$FastClassByCGLIB$$372ff70b.invoke(<generated>)
at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:149)
at org.springframework.aop.framework.Cglib2AopProxy$CglibMethodInvocation.invokeJoinpoint(Cglib2AopProxy.java:705)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:148)
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:170)
at org.springframework.aop.framework.Cglib2AopProxy$DynamicAdvisedInterceptor.intercept(Cglib2AopProxy.java:643)
at com.o2.morse.domain.User$$EnhancerByCGLIB$$d5ac966a.doHousekeeping(<generated>)
at com.o2.morse.scheduler.EndOfDay.run(EndOfDay.java:63)
at com.o2.morse.scheduler.EndOfDay$$FastClassByCGLIB$$3b2d4927.invoke(<generated>)
at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:149)
at org.springframework.aop.framework.Cglib2AopProxy$CglibMethodInvocation.invokeJoinpoint(Cglib2AopProxy.java:705)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:148)
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:170)
at org.springframework.aop.framework.Cglib2AopProxy$DynamicAdvisedInterceptor.intercept(Cglib2AopProxy.java:643)
at com.o2.morse.scheduler.EndOfDay$$EnhancerByCGLIB$$488a9f86.run(<generated>)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.springframework.util.MethodInvoker.invoke(MethodInvoker.java:248)
at org.springframework.scheduling.quartz.MethodInvokingJobDetailFactoryBean$MethodInvokingJob.executeInternal(MethodInvokingJobDetailFactoryBean.java:165)
at org.springframework.scheduling.quartz.QuartzJobBean.execute(QuartzJobBean.java:90)
at org.quartz.core.JobRunShell.run(JobRunShell.java:202)
at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:525)
Application exception overridden by rollback exception
org.springframework.jdbc.UncategorizedSQLException: StatementCallback; uncategorized SQLException for SQL [SELECT ID_USER_DETAILS, USERNAME, CREATED_ON, LAST_LOGIN FROM USER_DETAILS WHERE STATUS = 157 AND SUPERUSER <> 'Y']; SQL state [null]; error code [17002] ; Io exception: Connection timed out; nested exception is java.sql.SQLException: Io exception: Connection timed out
java.sql.SQLException: Io exception: Connection timed out
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:112)
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:146)
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:255)
at oracle.jdbc.driver.T4CStatement.executeForDescribe(T4CStatement.java:820)
at oracle.jdbc.driver.OracleStatement.executeMaybeDescribe(OracleStatement.java:1049)
at oracle.jdbc.driver.T4CStatement.executeMaybeDescribe(T4CStatement.java:845)
at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:1154)
at oracle.jdbc.driver.OracleStatement.executeQuery(OracleStatement.java:1313)
at org.apache.commons.dbcp.DelegatingStatement.executeQuery(DelegatingStatement.java:205)
at org.apache.commons.dbcp.DelegatingStatement.executeQuery(DelegatingStatement.java:205)
at org.springframework.jdbc.core.JdbcTemplate$1QueryStatementCallback.doInStatement(JdbcTemplate.java:333)
at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:282)
at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:348)
at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:352)
at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:356)
at com.o2.morse.dao.impl.sql.UserDaoImpl.batchLoad(UserDaoImpl.java:371)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:287)
at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:181)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:148)
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:170)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:176)
at $Proxy3.batchLoad(Unknown Source)
at com.o2.morse.domain.User.doHousekeeping(User.java:667)
at com.o2.morse.domain.User$$FastClassByCGLIB$$372ff70b.invoke(<generated>)
at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:149)
at org.springframework.aop.framework.Cglib2AopProxy$CglibMethodInvocation.invokeJoinpoint(Cglib2AopProxy.java:705)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:148)
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:170)
at org.springframework.aop.framework.Cglib2AopProxy$DynamicAdvisedInterceptor.intercept(Cglib2AopProxy.java:643)
at com.o2.morse.domain.User$$EnhancerByCGLIB$$d5ac966a.doHousekeeping(<generated>)
at com.o2.morse.scheduler.EndOfDay.run(EndOfDay.java:63)
at com.o2.morse.scheduler.EndOfDay$$FastClassByCGLIB$$3b2d4927.invoke(<generated>)
at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:149)
at org.springframework.aop.framework.Cglib2AopProxy$CglibMethodInvocation.invokeJoinpoint(Cglib2AopProxy.java:705)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:148)
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:170)
at org.springframework.aop.framework.Cglib2AopProxy$DynamicAdvisedInterceptor.intercept(Cglib2AopProxy.java:643)
at com.o2.morse.scheduler.EndOfDay$$EnhancerByCGLIB$$488a9f86.run(<generated>)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.springframework.util.MethodInvoker.invoke(MethodInvoker.java:248)
at org.springframework.scheduling.quartz.MethodInvokingJobDetailFactoryBean$MethodInvokingJob.executeInternal(MethodInvokingJobDetailFactoryBean.java:165)
at org.springframework.scheduling.quartz.QuartzJobBean.execute(QuartzJobBean.java:90)
at org.quartz.core.JobRunShell.run(JobRunShell.java:202)
at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:525)
Batch Job Failed: org.springframework.transaction.TransactionSystemException: Could not roll back JDBC transaction; nested exception is java.sql.SQLException: Closed Connection

I am using latest Jrockit 16)5, ojdbc6_g.jar,spring.jar Weblogic 10.3 and Oracle 10G 10.2.4 .. whatever but always get "Closed Connection"
java.lang.Throwable: Closed Connection
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:112)
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:146)
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:208)
at oracle.jdbc.driver.PhysicalConnection.createStatement(PhysicalConnection.java:750)
at oracle.jdbc.OracleConnectionWrapper.createStatement(OracleConnectionWrapper.java:183)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:27)
at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:7053)
at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:121)
at weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletContext.java:3902)
at weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestImpl.java:2773)
at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:224)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:183)

PLSQL webservice eventually gives java.sql.SQLException: Closed Connection

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