MySQL Exception in WL 8.1 - Can't call commit when autocommit=true

Question

Thanks in advance. Any help would be appreciated as I'm new to Weblogic. I've created a database control and get the following error at run time that I can't seem to get around:
An unexpected exception occurred while attempting to locate the run-time information for this Web Service. Error: java.sql.SQLException:
The server trace is as follows:
####<Jul 23, 2004 8:54:08 AM CDT> <Error> <WLW> <dts-client1> <cgServer> <ExecuteThread: '11' for queue: 'weblogic.kernel.Default'> <<anonymous>> <> <000000> <Exception processing ManageRouteTableJCS.ManageRouteTableTest
java.sql.SQLException: Can't call commit when autocommit=true
     at com.mysql.jdbc.Connection.commit(Connection.java:1136)
     at weblogic.jdbc.wrapper.PoolConnection_com_mysql_jdbc_Connection.commit(Unknown Source)
     at com.bea.wlw.runtime.core.bean.BMPContainerBean.initTableAccess(BMPContainerBean.java:1650)
     at com.bea.wlw.runtime.core.dispatcher.DispComponentJar.confirmDeployment(DispComponentJar.java:157)
     at com.bea.wlw.runtime.core.dispatcher.DispResources.confirmDeployment(DispResources.java:754)
     at com.bea.wlw.runtime.core.dispatcher.DispCache.ensureDispUnit(DispCache.java:660)
     at com.bea.wlw.runtime.core.dispatcher.HttpServerHelper.getDispUnit(HttpServerHelper.java:501)
     at com.bea.wlw.runtime.core.dispatcher.HttpServerHelper.executeGetRequest(HttpServerHelper.java:541)
     at com.bea.wlw.runtime.core.dispatcher.HttpServer.doGet(HttpServer.java:81)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
     at weblogic.servlet.internal.ServletStubImpl$ServletInvocationAction.run(ServletStubImpl.java:996)
     at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:419)
     at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:315)
     at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:6456)
     at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
     at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:118)
     at weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletContext.java:3661)
     at weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestImpl.java:2630)
     at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:219)
     at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:178)
Note that the above error only occurs with the database control. When I use the following straight Java code I can read records from the database just fine:
<%@page import="javax.naming.*,javax.sql.*,java.sql.*"%>
<%
Context ctx = new InitialContext ( );
DataSource dataSource = (DataSource) ctx.lookup ( "MySQLDataSource" );
Connection connection = dataSource.getConnection ( );
Statement statement = connection.createStatement ( );
ResultSet result = statement.executeQuery ( "select * from myTable1" );
while ( result.next ( ) ) {
out.print ( result.getString ( "field1" ) );
out.print ( "<br>" );
connection.close ( );
%>
I have experimented with disabling autconnect at the datasource with no change to the behavior.
Environmet specifics:
- Weblogic 8.1/SP3 (had the issue with SP2)
- MySQL standard 4.1 (had the issue with 4.0 and MaxDB)
- mysql-connector-java-3.0.14-production
I have read many articles on using using MySQL and Weblogic using I/O classes but not an article where a control was created in design view as I have done. Since I am able to read from the database with the executeQuery command I am led to believe that I have the database and driver set up correctly.
Anyone run into this and have an idea of what I don't have configured properly?
Thanks,
David

Answer 1

Thanks in advance. Any help would be appreciated as I'm new to Weblogic. I've created a database control and get the following error at run time that I can't seem to get around:
An unexpected exception occurred while attempting to locate the run-time information for this Web Service. Error: java.sql.SQLException:
The server trace is as follows:
####<Jul 23, 2004 8:54:08 AM CDT> <Error> <WLW> <dts-client1> <cgServer> <ExecuteThread: '11' for queue: 'weblogic.kernel.Default'> <<anonymous>> <> <000000> <Exception processing ManageRouteTableJCS.ManageRouteTableTest
java.sql.SQLException: Can't call commit when autocommit=true
     at com.mysql.jdbc.Connection.commit(Connection.java:1136)
     at weblogic.jdbc.wrapper.PoolConnection_com_mysql_jdbc_Connection.commit(Unknown Source)
     at com.bea.wlw.runtime.core.bean.BMPContainerBean.initTableAccess(BMPContainerBean.java:1650)
     at com.bea.wlw.runtime.core.dispatcher.DispComponentJar.confirmDeployment(DispComponentJar.java:157)
     at com.bea.wlw.runtime.core.dispatcher.DispResources.confirmDeployment(DispResources.java:754)
     at com.bea.wlw.runtime.core.dispatcher.DispCache.ensureDispUnit(DispCache.java:660)
     at com.bea.wlw.runtime.core.dispatcher.HttpServerHelper.getDispUnit(HttpServerHelper.java:501)
     at com.bea.wlw.runtime.core.dispatcher.HttpServerHelper.executeGetRequest(HttpServerHelper.java:541)
     at com.bea.wlw.runtime.core.dispatcher.HttpServer.doGet(HttpServer.java:81)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
     at weblogic.servlet.internal.ServletStubImpl$ServletInvocationAction.run(ServletStubImpl.java:996)
     at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:419)
     at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:315)
     at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:6456)
     at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
     at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:118)
     at weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletContext.java:3661)
     at weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestImpl.java:2630)
     at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:219)
     at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:178)
Note that the above error only occurs with the database control. When I use the following straight Java code I can read records from the database just fine:
<%@page import="javax.naming.*,javax.sql.*,java.sql.*"%>
<%
Context ctx = new InitialContext ( );
DataSource dataSource = (DataSource) ctx.lookup ( "MySQLDataSource" );
Connection connection = dataSource.getConnection ( );
Statement statement = connection.createStatement ( );
ResultSet result = statement.executeQuery ( "select * from myTable1" );
while ( result.next ( ) ) {
out.print ( result.getString ( "field1" ) );
out.print ( "<br>" );
connection.close ( );
%>
I have experimented with disabling autconnect at the datasource with no change to the behavior.
Environmet specifics:
- Weblogic 8.1/SP3 (had the issue with SP2)
- MySQL standard 4.1 (had the issue with 4.0 and MaxDB)
- mysql-connector-java-3.0.14-production
I have read many articles on using using MySQL and Weblogic using I/O classes but not an article where a control was created in design view as I have done. Since I am able to read from the database with the executeQuery command I am led to believe that I have the database and driver set up correctly.
Anyone run into this and have an idea of what I don't have configured properly?
Thanks,
David