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From Haim Schneider <HA...@il.ibm.com>
Subject MySQLNonTransientConnectionException: Can't call rollback when autocommit=true
Date Thu, 13 Mar 2014 12:59:54 GMT
Automatic table generation fails with MySQL. I get the exception:

MySQLNonTransientConnectionException: Can't call rollback when 
autocommit=true

This exception causes the connection to be closed, and the automatic table 
generation fails.

The exception is thrown by the SchemaTool.executeSQL method. I checked the 
source code and found that the method calls rollback prior to executing 
the SQL statement. The problem is that the method also set autocommit to 
true before calling rollback, and this leads to the 
MySQLNonTransientConnectionException that causes the connection to be 
closed.

Is there any workaround?

The complete exception is: 

com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: 
Can't call rollback when autocommit=true
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native 
Method)
        at 
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
        at 
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
        at com.mysql.jdbc.Util.handleNewInstance(Util.java:411)
        at com.mysql.jdbc.Util.getInstance(Util.java:386)
        at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1015)
        at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:989)
        at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:975)
        at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:920)
        at 
com.mysql.jdbc.ConnectionImpl.rollback(ConnectionImpl.java:5065)
        at 
com.mysql.jdbc.jdbc2.optional.ConnectionWrapper.rollback(ConnectionWrapper.java:794)
        at 
com.ibm.ws.rsadapter.jdbc.WSJdbcConnection.rollback(WSJdbcConnection.java:2593)
        at 
org.apache.openjpa.lib.jdbc.DelegatingConnection.rollback(DelegatingConnection.java:179)
        at 
org.apache.openjpa.lib.jdbc.LoggingConnectionDecorator$LoggingConnection.rollback(LoggingConnectionDecorator.java:356)
        at 
org.apache.openjpa.lib.jdbc.DelegatingConnection.rollback(DelegatingConnection.java:179)
        at 
org.apache.openjpa.lib.jdbc.ConfiguringConnectionDecorator$ConfiguringConnection.rollback(ConfiguringConnectionDecorator.java:132)
        at 
org.apache.openjpa.jdbc.schema.SchemaTool.executeSQL(SchemaTool.java:1219)
        at 
org.apache.openjpa.jdbc.schema.SchemaTool.createTable(SchemaTool.java:975)
        at 
org.apache.openjpa.jdbc.schema.SchemaTool.add(SchemaTool.java:551)
        at 
org.apache.openjpa.jdbc.schema.SchemaTool.add(SchemaTool.java:366)
        at 
org.apache.openjpa.jdbc.schema.SchemaTool.run(SchemaTool.java:343)
        at 
org.apache.openjpa.jdbc.meta.MappingTool.record(MappingTool.java:505)
        at 
org.apache.openjpa.jdbc.meta.MappingTool.record(MappingTool.java:455)
        at 
org.apache.openjpa.jdbc.kernel.JDBCBrokerFactory.synchronizeMappings(JDBCBrokerFactory.java:160)
        at 
org.apache.openjpa.jdbc.kernel.JDBCBrokerFactory.synchronizeMappings(JDBCBrokerFactory.java:164)
        at 
org.apache.openjpa.jdbc.kernel.JDBCBrokerFactory.newBrokerImpl(JDBCBrokerFactory.java:122)
        at 
org.apache.openjpa.kernel.AbstractBrokerFactory.newBroker(AbstractBrokerFactory.java:209)
        at 
org.apache.openjpa.kernel.DelegatingBrokerFactory.newBroker(DelegatingBrokerFactory.java:156)
        at 
org.apache.openjpa.persistence.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:227)
        at 
org.apache.openjpa.persistence.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:154)
        at 
org.apache.openjpa.persistence.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:60)
        at 
org.springframework.orm.jpa.JpaTransactionManager.createEntityManagerForTransaction(JpaTransactionManager.java:445)
        at 
org.springframework.orm.jpa.JpaTransactionManager.doBegin(JpaTransactionManager.java:366)
        at 
org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:371)
        at 
org.springframework.transaction.interceptor.TransactionAspectSupport.createTransactionIfNecessary(TransactionAspectSupport.java:336)
        at 
org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:105)
        at 
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
        at 
org.springframework.aop.framework.Cglib2AopProxy$DynamicAdvisedInterceptor.intercept(Cglib2AopProxy.java:622)
        at 
com.ibm.mbaas.mam.dao.MAMClientDAO$$EnhancerByCGLIB$$e32fb58f.getAllMetadata(<generated>)
        at 
com.ibm.mbaas.mam.controllers.ClientMetadataController.getClients(ClientMetadataController.java:173)
        at 
com.ibm.mbaas.mam.controllers.ClientMetadataController.getAllClientsMetadata(ClientMetadataController.java:105)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:606)
        at 
org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:213)
        at 
org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:126)
        at 
org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:96)
        at 
org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:617)
        at 
org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:578)
        at 
org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)
        at 
org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:923)
        at 
org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:852)
        at 
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:882)
        at 
org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:778)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:575)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:668)
        at 
com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:1240)
        at 
com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:760)
        at 
com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:443)
        at 
com.ibm.ws.webcontainer.filter.WebAppFilterChain.invokeTarget(WebAppFilterChain.java:127)
        at 
com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:88)
        at 
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
        at 
org.cloudfoundry.identity.uaa.security.web.SecurityFilterChainPostProcessor$UaaLoggingFilter.doFilter(SecurityFilterChainPostProcessor.java:195)
        at 
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
        at 
org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:192)
        at 
org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:160)
        at 
org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:346)
        at 
org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:259)
        at 
com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:194)
        at 
com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:85)
        at 
com.ibm.ws.icap.security.uaa.filter.OverrideServerPortFilter.doFilter(OverrideServerPortFilter.java:48)
        at 
com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:194)
        at 
com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:85)
        at 
com.ibm.ws.webcontainer.filter.WebAppFilterManager.doFilter(WebAppFilterManager.java:949)
        at 
com.ibm.ws.webcontainer.filter.WebAppFilterManager.invokeFilters(WebAppFilterManager.java:1029)
        at 
com.ibm.ws.webcontainer.webapp.WebApp.handleRequest(WebApp.java:4499)
        at 
com.ibm.ws.webcontainer.osgi.DynamicVirtualHost$2.handleRequest(DynamicVirtualHost.java:282)
        at 
com.ibm.ws.webcontainer.WebContainer.handleRequest(WebContainer.java:954)
        at 
com.ibm.ws.webcontainer.osgi.DynamicVirtualHost$2.run(DynamicVirtualHost.java:252)
        at 
com.ibm.ws.http.dispatcher.internal.channel.HttpDispatcherLink$TaskWrapper.run(HttpDispatcherLink.java:584)
        at 
com.ibm.ws.threading.internal.Worker.executeWork(Worker.java:439)
        at com.ibm.ws.threading.internal.Worker.run(Worker.java:421)
        at java.lang.Thread.run(Thread.java:724)

Thanks,
Haim Schneider
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