Re: [Springframework-developer] Reworked transaction infrastructure

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Hmmm, I don't see how Spring's transaction infrastructure could cause =
such behavior... Are you using transaction suspension here (i.e. =
PROPAGATION_REQUIRES_NEW) at all? If not, there's hardly anything that =
Spring could mess up. Better to double-check this, though: I guess the =
debugger is your friend here ;-)
=20
Juergen
=20

________________________________

Von: spr...@li... im Auftrag =
von Colin Sampaleanu
Gesendet: Mi 28.01.2004 18:21
An: spr...@li...; j=FCrgen h=F6ller =
[werk3AT]
Betreff: Re: [Springframework-developer] Reworked transaction =
infrastructure

I've been using the new code for a few days with generaly no issues.
I've come upon a problem now which may or may not have been there
before; it's hard for me to tell, and I can't roll back to the previous
spring version since I need some of the new features elsewhere.

The use case is fairly complex. There is a hierarchical appcontext
(although that is irrelevant), with a number of service beans in there
wrapped transactionally with an interceptor using JTATransactionManager
and with the Hibernate interceptor, via BeanNameAutoProxyCreator. There
is also usage of CMT Session Beans, which get called from Spring
objects, and call to Spring objects. So I have a problem with the
following sequence:

- JMS call to MessageDrivenBean, DispatcherBean
- DispatcherBean gets real POJO service object,
PackagingMessageHandlerImpl, from a context it locates, and delegates to
it. PackagingMessageHandlerImpl is transactionally wrapped by the =
context.
- PackagingMessageHandlerImpl calls out to ApplicationController, a
Session Bean (with CMT)
- ApplicationController gets real POJO service object from context,
ApplicationControllerServiceImpl, and delegates to it.
- ApplicationControllerServiceImpl does some work using some
Hibernate-based Mappers/DAOs.
- ApplicationControllerServiceImpl returns
- transaction manager calls commit, but no commit actually done since
not a new transaction, return continues
- ApplicationController (sessionBean) returns

then I get the following blowup, where JBoss is pretty confused. Looks
like an unknown connection is attempted to be closed, and the real one
isn't (as per the subsequent error about closing connections yourself).
Hard to tell who is at fault here. I will try to dig into this deeper
myself, but if you have any ideas they would be much appreciated:

2004-01-28 10:54:38,934 DEBUG
[org.springframework.transaction.interceptor.TransactionInterceptor]
Invoking commit for transaction on method 'uploadDistribution'
2004-01-28 10:54:38,934 DEBUG
[org.springframework.orm.hibernate.HibernateInterceptor] Not closing
pre-bound Hibernate session after interceptor
2004-01-28 10:54:38,934 INFO=20
[org.jboss.resource.connectionmanager.TxConnectionManager$TxConnectionEve=
ntListener]
throwable from unregister connection
java.lang.IllegalStateException: Trying to return an unknown
connection2! org.jboss.resource.adapter.jdbc.WrappedConnection@5cd34e
    at
org.jboss.resource.connectionmanager.CachedConnectionManager.unregisterCo=
nnection(CachedConnectionManager.java:275)
    at
org.jboss.resource.connectionmanager.TxConnectionManager$TxConnectionEven=
tListener.connectionClosed(TxConnectionManager.java:550)
    at
org.jboss.resource.adapter.jdbc.BaseWrapperManagedConnection.closeHandle(=
BaseWrapperManagedConnection.java:287)
    at
org.jboss.resource.adapter.jdbc.WrappedConnection.close(WrappedConnection=
.java:127)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java=
:39)
    at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorI=
mpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:324)
    at
org.jboss.resource.connectionmanager.CachedConnectionManager.closeAll(Cac=
hedConnectionManager.java:375)
    at
org.jboss.resource.connectionmanager.CachedConnectionManager.popMetaAware=
Object(CachedConnectionManager.java:199)
    at
org.jboss.resource.connectionmanager.CachedConnectionInterceptor.invoke(C=
achedConnectionInterceptor.java:190)
    at
org.jboss.ejb.plugins.StatelessSessionInstanceInterceptor.invoke(Stateles=
sSessionInstanceInterceptor.java:72)
    at
org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(AbstractTxIntercep=
tor.java:84)
    at
org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(TxInterceptorC=
MT.java:267)
    at
org.jboss.ejb.plugins.TxInterceptorCMT.invoke(TxInterceptorCMT.java:128)
    at
org.jboss.ejb.plugins.SecurityInterceptor.invoke(SecurityInterceptor.java=
:118)
    at =
org.jboss.ejb.plugins.LogInterceptor.invoke(LogInterceptor.java:191)
    at
org.jboss.ejb.plugins.ProxyFactoryFinderInterceptor.invoke(ProxyFactoryFi=
nderInterceptor.java:122)
    at
org.jboss.ejb.StatelessSessionContainer.internalInvoke(StatelessSessionCo=
ntainer.java:331)
    at org.jboss.ejb.Container.invoke(Container.java:700)
    at sun.reflect.GeneratedMethodAccessor88.invoke(Unknown Source)
    at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorI=
mpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:324)
    at
org.jboss.mx.capability.ReflectedMBeanDispatcher.invoke(ReflectedMBeanDis=
patcher.java:284)
    at =
org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:546)
    at =
org.jboss.invocation.local.LocalInvoker.invoke(LocalInvoker.java:101)
    at
org.jboss.invocation.InvokerInterceptor.invoke(InvokerInterceptor.java:90=
)
    at
org.jboss.proxy.TransactionInterceptor.invoke(TransactionInterceptor.java=
:46)
    at
org.jboss.proxy.SecurityInterceptor.invoke(SecurityInterceptor.java:45)
    at
org.jboss.proxy.ejb.StatelessSessionInterceptor.invoke(StatelessSessionIn=
terceptor.java:100)
    at org.jboss.proxy.ClientContainer.invoke(ClientContainer.java:85)
    at $Proxy99.uploadDistribution(Unknown Source)
    at
com.whatever.coreserv.services.messaging.PackagingMessageHandlerImpl.onMe=
ssage(PackagingMessageHandlerImpl.java:156)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java=
:39)
    at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorI=
mpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:324)
    at
org.springframework.aop.framework.AopProxyUtils.invokeJoinpointUsingRefle=
ction(AopProxyUtils.java:59)
    at
org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpo=
int(ReflectiveMethodInvocation.java:201)
    at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(Refl=
ectiveMethodInvocation.java:176)
    at
org.springframework.transaction.interceptor.TransactionInterceptor.invoke=
(TransactionInterceptor.java:156)
    at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(Refl=
ectiveMethodInvocation.java:196)
    at
org.springframework.orm.hibernate.HibernateInterceptor.invoke(HibernateIn=
terceptor.java:84)
    at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(Refl=
ectiveMethodInvocation.java:196)
    at
org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAop=
Proxy.java:135)
    at $Proxy114.onMessage(Unknown Source)
    at
com.whatever.coreserv.services.messaging.DispatcherBean.onMessage(Dispatc=
herBean.java:96)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java=
:39)
    at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorI=
mpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:324)
    at
org.jboss.ejb.MessageDrivenContainer$ContainerInterceptor.invoke(MessageD=
rivenContainer.java:460)
    at
org.jboss.resource.connectionmanager.CachedConnectionInterceptor.invoke(C=
achedConnectionInterceptor.java:186)
    at
org.jboss.ejb.plugins.MessageDrivenInstanceInterceptor.invoke(MessageDriv=
enInstanceInterceptor.java:62)
    at
org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(AbstractTxIntercep=
tor.java:84)
    at
org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(TxInterceptorC=
MT.java:240)
    at
org.jboss.ejb.plugins.TxInterceptorCMT.invoke(TxInterceptorCMT.java:128)
    at
org.jboss.ejb.plugins.RunAsSecurityInterceptor.invoke(RunAsSecurityInterc=
eptor.java:90)
    at =
org.jboss.ejb.plugins.LogInterceptor.invoke(LogInterceptor.java:191)
    at
org.jboss.ejb.plugins.ProxyFactoryFinderInterceptor.invoke(ProxyFactoryFi=
nderInterceptor.java:122)
    at
org.jboss.ejb.MessageDrivenContainer.internalInvoke(MessageDrivenContaine=
r.java:374)
    at org.jboss.ejb.Container.invoke(Container.java:700)
    at
org.jboss.ejb.plugins.jms.JMSContainerInvoker.invoke(JMSContainerInvoker.=
java:827)
    at
org.jboss.ejb.plugins.jms.JMSContainerInvoker$MessageListenerImpl.onMessa=
ge(JMSContainerInvoker.java:1117)
    at
org.jboss.jms.asf.StdServerSession.onMessage(StdServerSession.java:256)
    at
org.jboss.mq.SpyMessageConsumer.sessionConsumerProcessMessage(SpyMessageC=
onsumer.java:633)
    at
org.jboss.mq.SpyMessageConsumer.addMessage(SpyMessageConsumer.java:433)
    at org.jboss.mq.SpySession.run(SpySession.java:298)
    at org.jboss.jms.asf.StdServerSession.run(StdServerSession.java:180)
    at
EDU.oswego.cs.dl.util.concurrent.PooledExecutor$Worker.run(PooledExecutor=
.java:727)
    at java.lang.Thread.run(Thread.java:534)
2004-01-28 10:54:39,167 INFO=20
[org.jboss.resource.connectionmanager.CachedConnectionManager]
Successfully closed a connection for you.  Please close them yourself:
org.jboss.resource.adapter.jdbc.WrappedConnection@5cd34e
java.lang.Exception: Stack Trace
    at
org.jboss.resource.connectionmanager.CachedConnectionManager.closeAll(Cac=
hedConnectionManager.java:376)
    at
org.jboss.resource.connectionmanager.CachedConnectionManager.popMetaAware=
Object(CachedConnectionManager.java:199)
    at
org.jboss.resource.connectionmanager.CachedConnectionInterceptor.invoke(C=
achedConnectionInterceptor.java:190)
    at
org.jboss.ejb.plugins.StatelessSessionInstanceInterceptor.invoke(Stateles=
sSessionInstanceInterceptor.java:72)
    at
org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(AbstractTxIntercep=
tor.java:84)
    at
org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(TxInterceptorC=
MT.java:267)
    at
org.jboss.ejb.plugins.TxInterceptorCMT.invoke(TxInterceptorCMT.java:128)
    at
org.jboss.ejb.plugins.SecurityInterceptor.invoke(SecurityInterceptor.java=
:118)
    at =
org.jboss.ejb.plugins.LogInterceptor.invoke(LogInterceptor.java:191)
    at
org.jboss.ejb.plugins.ProxyFactoryFinderInterceptor.invoke(ProxyFactoryFi=
nderInterceptor.java:122)
    at
org.jboss.ejb.StatelessSessionContainer.internalInvoke(StatelessSessionCo=
ntainer.java:331)
    at org.jboss.ejb.Container.invoke(Container.java:700)
    at sun.reflect.GeneratedMethodAccessor88.invoke(Unknown Source)
    at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorI=
mpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:324)
    at
org.jboss.mx.capability.ReflectedMBeanDispatcher.invoke(ReflectedMBeanDis=
patcher.java:284)
    at =
org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:546)
    at =
org.jboss.invocation.local.LocalInvoker.invoke(LocalInvoker.java:101)
    at
org.jboss.invocation.InvokerInterceptor.invoke(InvokerInterceptor.java:90=
)
    at
org.jboss.proxy.TransactionInterceptor.invoke(TransactionInterceptor.java=
:46)
    at
org.jboss.proxy.SecurityInterceptor.invoke(SecurityInterceptor.java:45)
    at
org.jboss.proxy.ejb.StatelessSessionInterceptor.invoke(StatelessSessionIn=
terceptor.java:100)
    at org.jboss.proxy.ClientContainer.invoke(ClientContainer.java:85)
    at $Proxy99.uploadDistribution(Unknown Source)
    at
com.whatever.coreserv.services.messaging.PackagingMessageHandlerImpl.onMe=
ssage(PackagingMessageHandlerImpl.java:156)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java=
:39)
    at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorI=
mpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:324)
    at
org.springframework.aop.framework.AopProxyUtils.invokeJoinpointUsingRefle=
ction(AopProxyUtils.java:59)
    at
org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpo=
int(ReflectiveMethodInvocation.java:201)
    at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(Refl=
ectiveMethodInvocation.java:176)
    at
org.springframework.transaction.interceptor.TransactionInterceptor.invoke=
(TransactionInterceptor.java:156)
    at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(Refl=
ectiveMethodInvocation.java:196)
    at
org.springframework.orm.hibernate.HibernateInterceptor.invoke(HibernateIn=
terceptor.java:84)
    at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(Refl=
ectiveMethodInvocation.java:196)
    at
org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAop=
Proxy.java:135)
    at $Proxy114.onMessage(Unknown Source)
    at
com.whatever.coreserv.services.messaging.DispatcherBean.onMessage(Dispatc=
herBean.java:96)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java=
:39)
    at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorI=
mpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:324)
    at
org.jboss.ejb.MessageDrivenContainer$ContainerInterceptor.invoke(MessageD=
rivenContainer.java:460)
    at
org.jboss.resource.connectionmanager.CachedConnectionInterceptor.invoke(C=
achedConnectionInterceptor.java:186)
    at
org.jboss.ejb.plugins.MessageDrivenInstanceInterceptor.invoke(MessageDriv=
enInstanceInterceptor.java:62)
    at
org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(AbstractTxIntercep=
tor.java:84)
    at
org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(TxInterceptorC=
MT.java:240)
    at
org.jboss.ejb.plugins.TxInterceptorCMT.invoke(TxInterceptorCMT.java:128)
    at
org.jboss.ejb.plugins.RunAsSecurityInterceptor.invoke(RunAsSecurityInterc=
eptor.java:90)
    at =
org.jboss.ejb.plugins.LogInterceptor.invoke(LogInterceptor.java:191)
    at
org.jboss.ejb.plugins.ProxyFactoryFinderInterceptor.invoke(ProxyFactoryFi=
nderInterceptor.java:122)
    at
org.jboss.ejb.MessageDrivenContainer.internalInvoke(MessageDrivenContaine=
r.java:374)
    at org.jboss.ejb.Container.invoke(Container.java:700)
    at
org.jboss.ejb.plugins.jms.JMSContainerInvoker.invoke(JMSContainerInvoker.=
java:827)
    at
org.jboss.ejb.plugins.jms.JMSContainerInvoker$MessageListenerImpl.onMessa=
ge(JMSContainerInvoker.java:1117)
    at
org.jboss.jms.asf.StdServerSession.onMessage(StdServerSession.java:256)
    at
org.jboss.mq.SpyMessageConsumer.sessionConsumerProcessMessage(SpyMessageC=
onsumer.java:633)
    at
org.jboss.mq.SpyMessageConsumer.addMessage(SpyMessageConsumer.java:433)
    at org.jboss.mq.SpySession.run(SpySession.java:298)
    at org.jboss.jms.asf.StdServerSession.run(StdServerSession.java:180)
    at
EDU.oswego.cs.dl.util.concurrent.PooledExecutor$Worker.run(PooledExecutor=
.java:727)
    at java.lang.Thread.run(Thread.java:534)

j=FCrgen h=F6ller [werk3AT] wrote:

>Everybody,
>
>I've significantly reworked our transaction infrastructure last week, =
to effectively provide the same support for transaction suspension as =
EJB CMT does.  Accordingly, I've introduced propagation behaviors =
"REQUIRES_NEW", "NOT_SUPPORTED", and "NEVER" for all our =
PlatformTransactionManagers. I've committed this yesterday evening, now =
that CVS seems to work again.
>
>JtaTransactionManager needs to access the =
javax.transaction.TransactionManager for transaction suspension; =
unfortunately, the TransactionManager location is not defined by J2EE =
(O/R mappers have a similar problem for cache callbacks in a JTA =
environment). Thus, I've introduced a JtaDialect interface (analogous to =
our JdoDialect), containing "getInternalTransactionManager" and =
"applyIsolationLevel" methods (the latter factored out from =
JtaTransactionManager's template method into this strategy).
>
>The default dialect implementations is JndiLookupJtaDialect, with a =
configurable "templateManagerName" JNDI location (not doing anything =
about the isolation level); its Javadoc states a couple of well-known =
JTA TransactionManager locations in popular application servers. =
Additionally, I've added JotmJtaDialect and WebSphereJtaDialect, which =
both require specific static accessor methods to obtain the JTA =
TransactionManager. I've simply taken the corresponding code from =
Hibernate's TransactionManagerLookups.
>
>There's also a new "jtaDialect" property in LocalSessionFactoryBean, =
allowing to use a Spring-configured JtaDialect for Hibernate's =
TransactionManagerLookup. This avoids double configuration of the =
server-specific lookup strategy. As when providing a DataSource, the =
corresponding Hibernate property will be set implictly when a JtaDialect =
is provided.
>
>I've tested transaction suspension with HibernateTransactionManager and =
DataSourceTransactionManager in Tomcat, Resin, and JBoss; with =
JtaTransactionManager and a corresponding JndiLookupJtaDialect, in Resin =
and JBoss. Works nicely in all cases: I'd be happy if someone else tried =
WebLogic, WebSphere, JOTM, etc (there's nothing to worry about there, =
just validating the TransactionManager lookup strategies).
>
>I've also added a ClobStringType for Hibernate, using a =
LocalSessionFactoryBean-specified LobHandler for mapping Strings to =
CLOBs. You can specify ClobStringType for such fields in your Hibernate =
mappings even if just using CLOBs in certain environments: =
DefaultLobHandler will simply delegate to =
PreparedStatement.setString/ResultSet.getString anyway. On Oracle, =
simply configure OracleLobHandler in your application context - the =
Hibernate mapping file does not have to change.
>
>ClobStringType is particularly useful if you need Strings with more =
than 4000 characters in Oracle mapped to persistent objects via =
Hibernate. You need to use CLOBs for such long texts in Oracle; and due =
to Oracle's peculiar handling of LOBs, you need a special strategy like =
OracleLobHandler. On other databases like MySQL, type "longtext" is =
fine, to be used like normal String values. Our LobHandler abstraction =
allows to turn this into a configuration issue.
>
>If you get the chance, please check this out promptly, as we intend to =
release 1.0 RC1 this weekend!
>
>Juergen
>
>

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