Hi,
I'm using container managed transaction of Jboss 3.0 with Tomcat
4.0.3. We are using the Struts framework and Castor.
When i try to modify an existing object, the first time it works
fine. the next time it throws the
exception given below. Again the third time it works, 4th time exception
and so on..
However if we try to modify object1 for the first time, there is no
problem. Then we modfy object2 for the first time, there is no problem.
If we now try to modify object1 again i.e. for the 2nd time, exception
is thrown.
First 2 set of codes are Deployment descriptor, ejb-jar.xml and Vendor
specific file jboss.xml
modifyClientDetails() is first called from Action class. This in turn
calls the corresponding method in the clientManagerBean.The method in
the Bean performs 2 calls, 1st calls findByPrimaryKey() defined in
CastorMain. This performs database operation. 2nd, it calls populate()
[which is not a database call]. findByPrimaryKey() in CastorMain
performs the following oeration --
db = dobj.getDatabase();
aData = db.load(aClass, aKey);
EXCEPTION is shown at the end.
Error seems to be on the client side and not on the Server side.
EJB-JAR.XML
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE ejb-jar PUBLIC "-//Sun Microsystems, Inc.//DTD Enterprise
JavaBeans 2.0//EN"
"http://java.sun.com/dtd/ejb-jar_2_0.dtd";>
<ejb-jar >
<description>No Description.</description>
<display-name>Generated by XDoclet</display-name>
<enterprise-beans>
<!-- Session Beans -->
<session >
<description><![CDATA[The ClientManager Session
Bean]]></description>
<display-name>Client Manager Session Bean</display-name>
<ejb-name>client/ClientManager</ejb-name>
<home>com.softex.itesoverseer.server.ejb.interfaces.ClientManagerHome</home>
<remote>com.softex.itesoverseer.server.ejb.interfaces.ClientManager</remote>
<ejb-class>com.softex.itesoverseer.server.ejb.session.ClientManagerBean</ejb-class>
<session-type>Stateless</session-type>
<transaction-type>Container</transaction-type>
<resource-ref>
<res-ref-name>jdo/mydb</res-ref-name>
<res-type>org.exolab.castor.jdo.DataObjects</res-type>
<res-auth>Container</res-auth>
</resource-ref>
</session>
</enterprise-beans>
<!-- Assembly Descriptor -->
<assembly-descriptor >
<container-transaction>
<method>
<ejb-name>client/ClientManager</ejb-name>
<method-name>*</method-name>
</method>
<trans-attribute>Required</trans-attribute>
</container-transaction>
</assembly-descriptor>
</ejb-jar>
JBOSS.XML
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE jboss PUBLIC "-//JBoss//DTD JBOSS//EN"
"http://www.jboss.org/j2ee/dtd/jboss.dtd";>
<jboss>
<enterprise-beans>
<session>
<ejb-name>client/ClientManager</ejb-name>
<jndi-name>ejb/client/ClientManager</jndi-name>
</session>
</enterprise-beans>
<resource-managers>
<resource-manager
res-class="org.jboss.ejb.deployment.CastorJDOResource">
<res-name>jdo/mydb</res-name>
<res-jndi-name>java:/jdo/mydb</res-jndi-name>
</resource-manager>
</resource-managers>
</jboss>
Here is the code -
ActionClass
{
//Actionclass calls the modifyClientDetails method of the session bean.
clientManager.modifyClientDetails(oClientEntity);
log.info("After calling modifyClientDetails in action");
}catch (java.lang.reflect.UndeclaredThrowableException ex){
//java.lang.reflect.UndeclaredThrowableException is thrown with an
UndeclaredThrowable.
//printint out getUndeclaredThrowable
Throwable throwable = ex.getUndeclaredThrowable();
log.error("STACK TRACE STARTS");
log.error("ex.getUndeclaredThrowable",throwable);
log.error("STACK TRACE ENDS");
throw ex;
}catch(Exception e) {
log.error("Unexpected error ="+e.getMessage(),e);
throw e;
}
}
ClientManagerBean
{
//modifyClientDetails of Session bean. Calls the findByPrimaryKey method
of helper class.
public void modifyClientDetails(Client aClient) throws
ApplicationException {
ClientJDO clientJDO = null;
System.out.println("in DAO "+aClient.getClientID());
try {
//retrieves object.
clientJDO = (ClientJDO)castor.findByPrimaryKey(ClientJDO.class, new
Long(aClient.getClientID()));
//modifies properties of object.
BeanUtils.populate(clientJDO,BeanUtils.describe(aClient));
}
catch (CastorException e) {
throw new ApplicationException(e.getMessageKey(), e);
}
catch (Exception e) {
throw new ApplicationException("error.apperror", e);
}
}
CastorMain
{
......
//method called in helper class - CastorMain
public Object findByPrimaryKey(Class aClass, Object aKey) throws
CastorException
{
OQLQuery findOql;
Object aData
try
{
db = dobj.getDatabase();
aData = db.load(aClass, aKey);
}
catch(Exception e)
{
throw new CastorException("error.generalJDOError", e);
}
finally
{
try
{
if(db!= null) then db.close();
log.debug("connection closed");
}
catch(PersistenceException e)
{
throw new CastorException("error.generalJDOError",e);
}
}
return aData;
}
EXCEPTION
2002-08-01 20:16:27,960 INFO
[com.softex.itesoverseer.server.servlet.action.ClientAction] Entered in
Client Module
2002-08-01 20:16:28,450 INFO
[com.softex.itesoverseer.server.ejb.session.ClientManagerBean] before
modify in Bean
2002-08-01 20:16:28,510 DEBUG
[com.softex.itesoverseer.server.ejb.dao.CastorMain] connection closed
2002-08-01 20:16:28,510 INFO
[com.softex.itesoverseer.server.ejb.session.ClientManagerBean] After
modify in Bean
2002-08-01 20:16:28,620 ERROR
[com.softex.itesoverseer.server.servlet.action.ClientAction] STACK TRACE
STARTS
2002-08-01 20:16:28,950 ERROR
[com.softex.itesoverseer.server.servlet.action.ClientAction]
ex.getUndeclaredThrowable
javax.transaction.RollbackException: Unable to commit, tx=XidImpl
[FormatId=257, GlobalId=sham//14, BranchQual=]
status=STATUS_ROLLEDBACK at
org.jboss.tm.TxCapsule.commit(TxCapsule.java:389)
at org.jboss.tm.TransactionImpl.commit(TransactionImpl.java:74)
at
org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(TxInterceptorCMT.java:190)
at
org.jboss.ejb.plugins.TxInterceptorCMT.invoke(TxInterceptorCMT.java:61)
at
org.jboss.ejb.plugins.SecurityInterceptor.invoke(SecurityInterceptor.java:129)
at org.jboss.ejb.plugins.LogInterceptor.invoke(LogInterceptor.java:166)
at
org.jboss.ejb.StatelessSessionContainer.invoke(StatelessSessionContainer.java:313)
at org.jboss.ejb.Container.invoke(Container.java:705)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:491)
at org.jboss.invocation.local.LocalInvoker.invoke(LocalInvoker.java:98)
at
org.jboss.invocation.InvokerInterceptor.invoke(InvokerInterceptor.java:102)
at
org.jboss.proxy.TransactionInterceptor.invoke(TransactionInterceptor.java:73)
at
org.jboss.proxy.SecurityInterceptor.invoke(SecurityInterceptor.java:76)
at
org.jboss.proxy.ejb.StatelessSessionInterceptor.invoke(StatelessSessionInterceptor.java:111)
at org.jboss.proxy.ClientContainer.invoke(ClientContainer.java:76)
at $Proxy25.modifyClientDetails(Unknown Source)
at
com.softex.itesoverseer.server.servlet.action.ClientAction.execute(ClientAction.java:140)
at
org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:437)
at
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:264)
at
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1109)
at
org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:470)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:243)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:190)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at
org.apache.catalina.valves.CertificatesValve.invoke(CertificatesValve.java:246)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at
org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2343)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at
org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:170)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:170)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
at
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:468)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at
org.apache.catalina.connector.http.HttpProcessor.process(HttpProcessor.java:1012)
at
org.apache.catalina.connector.http.HttpProcessor.run(HttpProcessor.java:1107)
at java.lang.Thread.run(Thread.java:484)
2002-08-01 20:16:29,000 ERROR
[com.softex.itesoverseer.server.servlet.action.ClientAction] STACK TRACE
ENDS
Thanks in advance
Regards,
Arijit
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