TopLink 9.0.4

Hello,
I am curious about the next release of TopLink. Does anyone know when is it going out?
[]s

There is no prerelease version of TopLink 9.0.4 available, however the 10.0.3 version has exactly the same support for WLS 8 as in 9.0.4, including examples. You can try that out (for eval only), or wait for the 9.0.4. production release, where TopLink will indeed be bundled with Oracle Application Server 10g (9.0.4)
Regards,
Richard Wardle
TopLink Product Management

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Upgrading from Weblogic 6.1sp5/TopLink 3.6.3 to Weblogic 8.1/TopLink 9.0.4

Hi.
We are doing the migration from Weblogic 6.1sp5/TopLink 3.6.3 to Weblogic 8.1 & TopLink 9.0.4
We have been reading available documentation and started the migration. We have not had any problems with package ranaming issues and XML DOCTYPES changes.
As we do have a lot of ammedmed querys, we do prefer to use a java class as our proyect mapping descriptor rather than a huge XML.
We are currently porting all our querys to the new system.
As we are doing a lot of changes we are also updating our EJB 1.1 entity beans to EJB 2.0 (maybe in the future we will deploy our EJBs with local interfaces too).
The main problem we are facing right now is with all the querys we had in our toplink-cmp-<bean>.xml files. Even if most of the finders are "REDIRECT" querys that had to be ammendmed we have a good number of "EXPRESSION"s on them.
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Another issue we don't have clear is if now all the querys must be either ejb-ql (compliant with the EJB 2.0 standard) or named querys (either TopLink expressions or SQL querys) defined in the TopLink Project java or XML files. What happened with the redirect querys
I would like to point just another issue we have "solved" but we are not really satisfied with how we solved it.
We are using timestamp locking with our entity beans. The shouldBindAllParameters is set to true too and we have the logging activated so we have been able to track down the problem.
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INSERT INTO FOO(OID,OCA) VALUES (?, ?)
bind => [1, 2004-04-26 13:16:45.251]
As far as we know Oracle 8.1.7 doesn't store the milliseconds (we are using DATE type in Oracle tables) so the ".251" value is stored as "0"
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DELETE FROM FOO WHERE ((OID = ? AND OCA = ?))
bind => [1, 2004-04-26 13:16:45.251]
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If we have configured two datasources in our Weblogic's config.xml file (one for transactional operations, beeing that one also an XA driver as we need to coordinate RDBMS operations with a JMS service, and the other one being a "standar" oracle.jdbc.driver.OracleDriver) why is that the driver used as default by the login method is that "weird" sun.jdbc... driver? Shouldn't TopLink use one (the XA driver I hopefully) of the drivers defined in Weblogic's datasource?
1. Is the issue we are seeing with the timestamp a known bug/problem?
2. Is there a better way to solve it than changing the driver (we are affraid of the "new" issues changing it could raise)
I have seen that with TopLink 3.6.3 and the "default" driver used in the login (it is the same by default on both TopLink 3.6.3 and TopLink 9.0.4) the binded timestamp are "truncated" to the second resolution and it works without any problem.
Thanks in advance.
Ignacio

Not sure on all of the issues, but can provide some information on some of them.
Re-directors:
Support was added for re-director to core queries, so now your named queries can make use of re-director if they require advanced dynamic execution. So all re-director queries can become named queries.
Timestamp locking:
In general we would always suggest numeric version locking if you have the choice. I'm not clear on what you are saying about the driver having an effect on the problem, however in general Oracle 8 does not support milliseconds, if you use timestamp locking with local timestamps they will have milliseconds and the database values will not match the ones in memory.
To resolve this you can,
- Use server timestamps TimestampLockingPolicy.useServerTime()
- Clear the timestamp's milli/nano second value through an aboutToInsert event.
- Extend Oracle8Platform.convertObject to clear the timestamp's milli/nano second value.
- If you can use Oracle 9 or 10 there is now a TIMESTAMP type that does support milliseconds.
If a different driver seems to be solving this, it is most likely the database ignores the milliseconds in the comparison, but the driver you are using sends the millisecond to the database incorrectly when binding.

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Hi,
I have a sql statement like this:
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order by field1,
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I just spent about a half hour writing a response here, and the damned forum timed out on me. #$^!@$#!^!@$%.
Here is the summary:
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- Don

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Hi everybody!
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Thanks in advance,
Alejandro T

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As I said, I never used it so that's pure theory. Someone else might know better, though.

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Hi All,
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I am strating tomcat using -javaagent:/Path/To/spring-agaent.jar
Dec 14, 2006 9:52:46 AM org.apache.catalina.loader.WebappClassLoader loadClass
INFO: Illegal access: this web application instance has been stopped already. Could not load oracle.toplink.essentials.internal.weaving.ClassDetails. The eventual following stack trace is caused by an error thrown for debugging purposes as well as to attempt to terminate the thread which caused the illegal access, and has no functional impact.
java.lang.IllegalStateException
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        at java.lang.Class.getDeclaredConstructors0(Native Method)
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        at java.lang.Class.newInstance0(Class.java:321)
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Sateesh

Spring 2.0 provides custom support for TopLink Essentials in Tomcat out-of-the-box. You should follow the instructions here: http://static.springframework.org/spring/docs/2.0.x/reference/orm.html#orm-jpa-setup-lcemfb-tomcat
Essentially, Spring provides a custom class loader for Tomcat and doesn't use an agent.
--Shaun

How do I use toplink with Spring 2.5 and oc4j 10.1.2?

Our existing java server environment is limited to Oc4j 10.1.2 due to being tied to Oracle Forms.
We've added a java 6 jdk to the machine and linked it to a specific container to examine some newer java features since this version of the application server only comes with java 1.4.2.
Does anyone have some configuration steps for getting toplink essentials and spring to work with oc4j 10.1.2? Even with oc4j 10.1.3 in jdev 10.1.3.4 I'm having problems trying to figure out what needs placed in the persistence.xml file verses what needs placed in the spring-beans.xml file.
I'm trying to either use the J2SE option of keeping the connection information in the persistence.xml file (which doesn't work) - it tries to connect to //localhost:1521/orcl. If I try to define a datasource within Spring's xml file, I'm not sure how to tie that into the persistence.xml file. Could I use the oc4j 10.1.2 container provided datasource?
It seems like I'm at a loss as to how to get this working. If you'd like me to post some files, I can do that later on today when I get back to work.
The configuration that I'm trying to do is based on a modified workspace from an ibm developerworks article with websphere, mixing in the ideas from a JPA with Spring 2.0 article from Mike Keith and Rod Johnson. (That article goes pretty far in the configuration information but never provided an example to download...)
Any help appreciated.
Eric (hbg, pa)

I'm still at a loss with this. Rather than worry about the older version, for now, I just want to see JPA in action. So, I've decided on just running the Spring 2.5.6 petclinic example out of the samples folder. When I try to do this, after only tweaking the web.xml to use the applicationContext-jpa.xml file, the application does not initialize properly. Here's the stack trace I get:
Target URL -- http://192.168.0.2:8988/petclinic/index.jsp
09/05/11 23:26:05 Oracle Containers for J2EE 10g (10.1.3.4.0) initialized
WARNING: Code-source C:\javalib\spring-2.5.6\samples\petclinic\war\WEB-INF\lib\connector.jar (from WEB-INF/lib/ directory in C:\javalib\spring-2.5.6\samples\petclinic\war\WEB-INF\lib) has the same filename but is not identical to /C:/jdev10134/j2ee/home/lib/connector.jar (from <code-source> (ignore manifest Class-Path) in META-INF/boot.xml in C:\jdev10134\j2ee\home\oc4j.jar). If it contains different versions of the same classes, it will be masked as the latter is already visible in the search path of loader current-workspace-app.web.petclinic:0.0.0.
WARNING: Code-source C:\javalib\spring-2.5.6\samples\petclinic\war\WEB-INF\lib\jta.jar (from WEB-INF/lib/ directory in C:\javalib\spring-2.5.6\samples\petclinic\war\WEB-INF\lib) has the same filename but is not identical to /C:/jdev10134/j2ee/home/lib/jta.jar (from <code-source> (ignore manifest Class-Path) in META-INF/boot.xml in C:\jdev10134\j2ee\home\oc4j.jar). If it contains different versions of the same classes, it will be masked as the latter is already visible in the search path of loader current-workspace-app.web.petclinic:0.0.0.
WARNING: Code-source C:\javalib\spring-2.5.6\samples\petclinic\war\WEB-INF\lib\persistence.jar (from WEB-INF/lib/ directory in C:\javalib\spring-2.5.6\samples\petclinic\war\WEB-INF\lib) has the same filename but is not identical to /C:/jdev10134/j2ee/home/lib/persistence.jar (from <code-source> (ignore manifest Class-Path) in META-INF/boot.xml in C:\jdev10134\j2ee\home\oc4j.jar). If it contains different versions of the same classes, it will be masked as the latter is already visible in the search path of loader current-workspace-app.web.petclinic:0.0.0.
WARNING: Code-source C:\javalib\spring-2.5.6\samples\petclinic\war\WEB-INF\lib\toplink-essentials.jar (from WEB-INF/lib/ directory in C:\javalib\spring-2.5.6\samples\petclinic\war\WEB-INF\lib) has the same filename but is not identical to /C:/jdev10134/toplink/jlib/toplink-essentials.jar (from <code-source> in /C:/jdev10134/jdev/system/oracle.j2ee.10.1.3.42.70/embedded-oc4j/config/server.xml). If it contains different versions of the same classes, it will be masked as the latter is already visible in the search path of loader current-workspace-app.web.petclinic:0.0.0.
09/05/11 23:26:24 log4j: Parsing for [root] with value=[INFO, stdout].
09/05/11 23:26:24 log4j: Level token is [INFO].
09/05/11 23:26:24 log4j: Category root set to INFO
09/05/11 23:26:24 log4j: Parsing appender named "stdout".
09/05/11 23:26:24 log4j: Parsing layout options for "stdout".
09/05/11 23:26:24 log4j: Setting property [conversionPattern] to [%d %p [%c] - <%m>%n].
09/05/11 23:26:24 log4j: End of parsing for "stdout".
09/05/11 23:26:24 log4j: Parsed "stdout" options.
09/05/11 23:26:24 log4j: Parsing for [org.springframework.samples.petclinic.aspects] with value=[DEBUG].
09/05/11 23:26:24 log4j: Level token is [DEBUG].
09/05/11 23:26:24 log4j: Category org.springframework.samples.petclinic.aspects set to DEBUG
09/05/11 23:26:24 log4j: Handling log4j.additivity.org.springframework.samples.petclinic.aspects=[null]
09/05/11 23:26:24 log4j: Finished configuring.
09/05/11 23:26:24 log4j: Reading configuration from URL file:/C:/javalib/spring-2.5.6/samples/petclinic/war/WEB-INF/classes/log4j.properties
09/05/11 23:26:24 log4j: Parsing for [root] with value=[INFO, stdout].
09/05/11 23:26:24 log4j: Level token is [INFO].
09/05/11 23:26:24 log4j: Category root set to INFO
09/05/11 23:26:24 log4j: Parsing appender named "stdout".
09/05/11 23:26:24 log4j: Parsing layout options for "stdout".
09/05/11 23:26:24 log4j: Setting property [conversionPattern] to [%d %p [%c] - <%m>%n].
09/05/11 23:26:24 log4j: End of parsing for "stdout".
09/05/11 23:26:24 log4j: Parsed "stdout" options.
09/05/11 23:26:24 log4j: Parsing for [org.springframework.samples.petclinic.aspects] with value=[DEBUG].
09/05/11 23:26:24 log4j: Level token is [DEBUG].
09/05/11 23:26:24 log4j: Category org.springframework.samples.petclinic.aspects set to DEBUG
09/05/11 23:26:24 log4j: Handling log4j.additivity.org.springframework.samples.petclinic.aspects=[null]
09/05/11 23:26:24 log4j: Finished configuring.
2009-05-11 23:26:24,593 INFO [org.springframework.web.context.ContextLoader] - <Root WebApplicationContext: initialization started>
2009-05-11 23:26:24,687 INFO [org.springframework.web.context.support.XmlWebApplicationContext] - <Refreshing org.springframework.web.context.support.XmlWebApplicationContext@eeb406: display name [Root WebApplicationContext]; startup date [Mon May 11 23:26:24 EDT 2009]; root of context hierarchy>
2009-05-11 23:26:24,828 INFO [org.springframework.beans.factory.xml.XmlBeanDefinitionReader] - <Loading XML bean definitions from ServletContext resource [WEB-INF/applicationContext-jpa.xml]>
2009-05-11 23:26:25,281 INFO [org.springframework.web.context.support.XmlWebApplicationContext] - <Bean factory for application context [org.springframework.web.context.support.XmlWebApplicationContext@eeb406]: org.springframework.beans.factory.support.DefaultListableBeanFactory@1da817b>
2009-05-11 23:26:25,734 INFO [org.springframework.beans.factory.config.PropertyPlaceholderConfigurer] - <Loading properties file from class path resource [jdbc.properties]>
2009-05-11 23:26:25,796 INFO [org.springframework.context.weaving.DefaultContextLoadTimeWeaver] - <Determined server-specific load-time weaver: org.springframework.instrument.classloading.oc4j.OC4JLoadTimeWeaver>
2009-05-11 23:26:28,296 INFO [org.springframework.web.context.support.XmlWebApplicationContext] - <Bean 'org.springframework.orm.jpa.vendor.TopLinkJpaVendorAdapter#c25ae3' is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)>
2009-05-11 23:26:28,359 INFO [org.springframework.web.context.support.XmlWebApplicationContext] - <Bean 'dataSource' is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)>
2009-05-11 23:26:28,437 INFO [org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean] - <Building JPA container EntityManagerFactory for persistence unit 'PetClinic'>
2009-05-11 23:26:28,468 INFO [org.springframework.web.context.support.XmlWebApplicationContext] - <Bean 'entityManagerFactory' is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)>
2009-05-11 23:26:28,562 INFO [org.springframework.beans.factory.support.DefaultListableBeanFactory] - <Pre-instantiating singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@1da817b: defining beans [org.springframework.context.weaving.AspectJWeavingEnabler#0,org.springframework.context.config.internalBeanConfigurerAspect,loadTimeWeaver,org.springframework.beans.factory.config.PropertyPlaceholderConfigurer#0,dataSource,entityManagerFactory,transactionManager,org.springframework.context.annotation.internalPersistenceAnnotationProcessor,org.springframework.context.annotation.internalCommonAnnotationProcessor,org.springframework.context.annotation.internalAutowiredAnnotationProcessor,org.springframework.context.annotation.internalRequiredAnnotationProcessor,org.springframework.transaction.config.internalTransactionAspect,org.springframework.samples.petclinic.aspects.UsageLogAspect#0,org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor#0,clinic]; root of factory hierarchy>
2009-05-11 23:26:29,671 INFO [org.springframework.web.context.ContextLoader] - <Root WebApplicationContext: initialization completed in 5078 ms>
2009-05-11 23:26:29,734 INFO [org.springframework.web.servlet.DispatcherServlet] - <FrameworkServlet 'petclinic': initialization started>
2009-05-11 23:26:29,734 INFO [org.springframework.web.context.support.XmlWebApplicationContext] - <Refreshing org.springframework.web.context.support.XmlWebApplicationContext@c00e55: display name [WebApplicationContext for namespace 'petclinic-servlet']; startup date [Mon May 11 23:26:29 EDT 2009]; parent: org.springframework.web.context.support.XmlWebApplicationContext@eeb406>
2009-05-11 23:26:29,734 INFO [org.springframework.beans.factory.xml.XmlBeanDefinitionReader] - <Loading XML bean definitions from ServletContext resource [WEB-INF/petclinic-servlet.xml]>
2009-05-11 23:26:30,171 INFO [org.springframework.web.context.support.XmlWebApplicationContext] - <Bean factory for application context [org.springframework.web.context.support.XmlWebApplicationContext@c00e55]: org.springframework.beans.factory.support.DefaultListableBeanFactory@1c5543b>
2009-05-11 23:26:30,375 INFO [org.springframework.beans.factory.support.DefaultListableBeanFactory] - <Pre-instantiating singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@1c5543b: defining beans [addOwnerForm,addPetForm,addVisitForm,clinicController,editOwnerForm,editPetForm,findOwnersForm,org.springframework.context.annotation.internalPersistenceAnnotationProcessor,org.springframework.context.annotation.internalCommonAnnotationProcessor,org.springframework.context.annotation.internalAutowiredAnnotationProcessor,org.springframework.context.annotation.internalRequiredAnnotationProcessor,org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter#0,org.springframework.web.servlet.handler.SimpleMappingExceptionResolver#0,org.springframework.web.servlet.view.InternalResourceViewResolver#0,messageSource]; parent: org.springframework.beans.factory.support.DefaultListableBeanFactory@1da817b>
2009-05-11 23:26:31,828 INFO [org.springframework.web.servlet.DispatcherServlet] - <FrameworkServlet 'petclinic': initialization completed in 2094 ms>
May 11, 2009 11:26:58 PM oracle.toplink.essentials.session.file:/C:/javalib/spring-2.5.6/samples/petclinic/war/WEB-INF/classes/-PetClinic.transaction
WARNING: PersistenceUnitInfo PetClinic has transactionType RESOURCE_LOCAL and therefore jtaDataSource will be ignored
May 11, 2009 11:26:58 PM oracle.toplink.essentials.session.file:/C:/javalib/spring-2.5.6/samples/petclinic/war/WEB-INF/classes/-PetClinic
INFO: TopLink, version: Oracle TopLink Essentials - 2.0.1 (Build b09d-fcs (12/06/2007))
May 11, 2009 11:26:58 PM oracle.toplink.essentials.session.file:/C:/javalib/spring-2.5.6/samples/petclinic/war/WEB-INF/classes/-PetClinic
INFO: Server: unknown
May 11, 2009 11:26:58 PM oracle.toplink.essentials.session.file:/C:/javalib/spring-2.5.6/samples/petclinic/war/WEB-INF/classes/-PetClinic.connection
CONFIG: connecting(DatabaseLogin(
        platform=>EssentialsHSQLPlatformWithNativeSequence
        user name=> ""
        connector=>JNDIConnector datasource name=>null
May 11, 2009 11:27:03 PM oracle.toplink.essentials.session.file:/C:/javalib/spring-2.5.6/samples/petclinic/war/WEB-INF/classes/-PetClinic
SEVERE:
Local Exception Stack:
Exception [TOPLINK-4002] (Oracle TopLink Essentials - 2.0.1 (Build b09d-fcs (12/06/2007))): oracle.toplink.essentials.exceptions.DatabaseException
Internal Exception: java.sql.SQLException: Io exception: The Network Adapter could not establish the connection
Error Code: 17002
        at oracle.toplink.essentials.exceptions.DatabaseException.sqlException(DatabaseException.java:305)
        at oracle.toplink.essentials.jndi.JNDIConnector.connect(JNDIConnector.java:150)
        at oracle.toplink.essentials.sessions.DatasourceLogin.connectToDatasource(DatasourceLogin.java:184)
        at oracle.toplink.essentials.internal.databaseaccess.DatasourceAccessor.connect(DatasourceAccessor.java:233)
        at oracle.toplink.essentials.internal.databaseaccess.DatabaseAccessor.connect(DatabaseAccessor.java:242)
        at oracle.toplink.essentials.internal.databaseaccess.DatasourceAccessor.connect(DatasourceAccessor.java:309)
        at oracle.toplink.essentials.threetier.ConnectionPool.buildConnection(ConnectionPool.java:117)
        at oracle.toplink.essentials.threetier.ExternalConnectionPool.startUp(ExternalConnectionPool.java:135)
        at oracle.toplink.essentials.threetier.ServerSession.connect(ServerSession.java:451)
        at oracle.toplink.essentials.internal.sessions.DatabaseSessionImpl.login(DatabaseSessionImpl.java:616)
        at oracle.toplink.essentials.ejb.cmp3.EntityManagerFactoryProvider.login(EntityManagerFactoryProvider.java:282)
        at oracle.toplink.essentials.internal.ejb.cmp3.EntityManagerSetupImpl.deploy(EntityManagerSetupImpl.java:229)
        at oracle.toplink.essentials.internal.ejb.cmp3.base.EntityManagerFactoryImpl.getServerSession(EntityManagerFactoryImpl.java:93)
        at oracle.toplink.essentials.internal.ejb.cmp3.base.EntityManagerFactoryImpl.createEntityManagerImpl(EntityManagerFactoryImpl.java:126)
        at oracle.toplink.essentials.internal.ejb.cmp3.base.EntityManagerFactoryImpl.createEntityManagerImpl(EntityManagerFactoryImpl.java:120)
        at oracle.toplink.essentials.internal.ejb.cmp3.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:91)
        at org.springframework.orm.jpa.JpaTransactionManager.createEntityManagerForTransaction(JpaTransactionManager.java:392)
        at org.springframework.orm.jpa.JpaTransactionManager.doBegin(JpaTransactionManager.java:320)
        at org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:374)
        at org.springframework.transaction.interceptor.TransactionAspectSupport.createTransactionIfNecessary(TransactionAspectSupport.java:263)
        at org.springframework.transaction.interceptor.TransactionAspectSupport.createTransactionIfNecessary(TransactionAspectSupport.java:220)
        at org.springframework.transaction.aspectj.AbstractTransactionAspect.ajc$before$org_springframework_transaction_aspectj_AbstractTransactionAspect$1$2a73e96c(AbstractTransactionAspect.aj:63)
        at org.springframework.samples.petclinic.jpa.EntityManagerClinic.getVets(EntityManagerClinic.java:39)
        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:307)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:182)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:149)
        at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:138)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
        at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
        at $Proxy19.getVets(Unknown Source)
        at org.springframework.samples.petclinic.web.ClinicController.vetsHandler(ClinicController.java:53)
        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.web.bind.annotation.support.HandlerMethodInvoker.doInvokeMethod(HandlerMethodInvoker.java:421)
        at org.springframework.web.bind.annotation.support.HandlerMethodInvoker.invokeHandlerMethod(HandlerMethodInvoker.java:136)
        at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java:326)
        at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:313)
        at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:875)
        at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:807)
        at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:571)
        at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:501)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:743)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
        at com.evermind.server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:713)
        at com.evermind.server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:370)
        at com.evermind.server.http.HttpRequestHandler.doProcessRequest(HttpRequestHandler.java:871)
        at com.evermind.server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:453)
        at com.evermind.server.http.HttpRequestHandler.serveOneRequest(HttpRequestHandler.java:221)
        at com.evermind.server.http.HttpRequestHandler.run(HttpRequestHandler.java:122)
        at com.evermind.server.http.HttpRequestHandler.run(HttpRequestHandler.java:111)
        at oracle.oc4j.network.ServerSocketReadHandler$SafeRunnable.run(ServerSocketReadHandler.java:260)
        at oracle.oc4j.network.ServerSocketAcceptHandler.procClientSocket(ServerSocketAcceptHandler.java:234)
        at oracle.oc4j.network.ServerSocketAcceptHandler.access$700(ServerSocketAcceptHandler.java:29)
        at oracle.oc4j.network.ServerSocketAcceptHandler$AcceptHandlerHorse.run(ServerSocketAcceptHandler.java:879)
        at com.evermind.util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:303)
        at java.lang.Thread.run(Thread.java:595)
Caused by: java.sql.SQLException: Io exception: The Network Adapter could not establish the connection
        at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:138)
        at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:175)
        at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:287)
        at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:328)
        at oracle.jdbc.driver.PhysicalConnection.<init>(PhysicalConnection.java:430)
        at oracle.jdbc.driver.T4CConnection.<init>(T4CConnection.java:151)
        at oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:32)
        at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:608)
        at oracle.jdbc.pool.OracleDataSource.getConnection(OracleDataSource.java:218)
        at oracle.jdbc.pool.OracleConnectionPoolDataSource.getPhysicalConnection(OracleConnectionPoolDataSource.java:114)
        at oracle.jdbc.pool.OracleConnectionPoolDataSource.getPooledConnection(OracleConnectionPoolDataSource.java:77)
        at oracle.jdbc.pool.OracleImplicitConnectionCache.makeCacheConnection(OracleImplicitConnectionCache.java:1361)
        at oracle.jdbc.pool.OracleImplicitConnectionCache.getCacheConnection(OracleImplicitConnectionCache.java:441)
        at oracle.jdbc.pool.OracleImplicitConnectionCache.getConnection(OracleImplicitConnectionCache.java:336)
        at oracle.jdbc.pool.OracleDataSource.getConnection(OracleDataSource.java:286)
        at oracle.jdbc.pool.OracleDataSource.getConnection(OracleDataSource.java:179)
        at oracle.jdbc.pool.OracleDataSource.getConnection(OracleDataSource.java:159)
        at oracle.oc4j.sql.DataSourceConnectionPoolDataSource.getPooledConnection(DataSourceConnectionPoolDataSource.java:57)
        at oracle.oc4j.sql.xa.EmulatedXADataSource.getXAConnection(EmulatedXADataSource.java:92)
        at oracle.oc4j.sql.spi.ManagedConnectionFactoryImpl.createXAConnection(ManagedConnectionFactoryImpl.java:211)
        at oracle.oc4j.sql.spi.ManagedConnectionFactoryImpl.createManagedConnection(ManagedConnectionFactoryImpl.java:170)
        at com.evermind.server.connector.ApplicationConnectionManager.createManagedConnection(ApplicationConnectionManager.java:1398)
        at oracle.j2ee.connector.ConnectionPoolImpl.createManagedConnectionFromFactory(ConnectionPoolImpl.java:327)
        at oracle.j2ee.connector.ConnectionPoolImpl.access$800(ConnectionPoolImpl.java:98)
        at oracle.j2ee.connector.ConnectionPoolImpl$NonePoolingScheme.getManagedConnection(ConnectionPoolImpl.java:1211)
        at oracle.j2ee.connector.ConnectionPoolImpl.getManagedConnection(ConnectionPoolImpl.java:785)
        at oracle.oc4j.sql.ConnectionPoolImpl.getManagedConnection(ConnectionPoolImpl.java:45)
        at com.evermind.server.connector.ApplicationConnectionManager.getConnectionFromPool(ApplicationConnectionManager.java:1596)
        at com.evermind.server.connector.ApplicationConnectionManager.acquireConnectionContext(ApplicationConnectionManager.java:1541)
        at com.evermind.server.connector.ApplicationConnectionManager.allocateConnection(ApplicationConnectionManager.java:1486)
        at oracle.j2ee.connector.OracleConnectionManager.unprivileged_allocateConnection(OracleConnectionManager.java:238)
        at oracle.j2ee.connector.OracleConnectionManager.allocateConnection(OracleConnectionManager.java:192)
        at oracle.oc4j.sql.ManagedDataSource.getConnection(ManagedDataSource.java:272)
        at oracle.oc4j.sql.ManagedDataSource.getConnection(ManagedDataSource.java:200)
        at oracle.oc4j.sql.ManagedDataSource.getConnection(ManagedDataSource.java:142)
        at oracle.oc4j.sql.ManagedDataSource.getConnection(ManagedDataSource.java:127)
        at oracle.toplink.essentials.jndi.JNDIConnector.connect(JNDIConnector.java:145)
        ... 60 moreAny ideas? I'd really like to see JPA, Spring and oc4j working together?
Thanks,
Eric

Anything fixed in Oracle TopLink 11g Release 1 (11.1.1.1.0) ?

Was there anything fixed in Oracle TopLink 11g Release 1 (11.1.1.1.0) ?
I don't see anything in release notes ( http://www.oracle.com/technology/products/ias/toplink/doc/11110/relnotes/toplink-relnotes.html ) regarding fixes. Anybody know where I can get that info? We have run into a couple of issues in the previous 11g release (11.1.1.0.1) and want to know if those issues have been addressed in the new release.
Thanks!

The two major areas of work in 11gR1 (11.1.1.1.0) are enhancements to EclipseLink included with the its 1.1.1 release as well as enhancements around TopLink Grid (JPA-Coherence integration).
The EclipseLink 1.1.1 fixes are documented here: http://wiki.eclipse.org/EclipseLink/Release/1.1.1
Doug

How to open and edit a TopLink .mwp file?

I can not open the toplink_mappings.mwp file using JDeveloper tool.
How to open and edit a TopLink .mwp file?
Thank you

Hi,
Use JDeveloper to import the mwp project .In Jdeveloper,File->Import->ToplinkWorkbench->Select the .mwp file and can work from JDeveloper in editing the tlmap.xml and session.xml.
Regards,
P.Vinay Kumar

Toplink with sql server

I have sucessfully used Toplink with Oracle. ow I have to use it with MS SQL server and I am having problems. First of all, in the Mapping Worbench, the only SQL server driver listed is weblogic.jdbc.mssqlserver4.Driver. Why can't I use the regular ms sql driver, com.microsoft.jdbc.sqlserver.SQLServerDriver? Why should the mapping workbench be tied to Weblogic? If one did not have Weblogic, would it be impossible to use Toplink with SQL server? Well, I have Weblogic, so I tried using the weblogic driver with the url jdbc:microsoft:sqlserver://<host ip>:1433;DatabaseName=<db name>. When I try to connect, a dialog box appears that says: "java.sql.SQLException $$$$$$$$$$ License Exception $$$$$$$$$$ Missing license for: WebLogic Server 6.1. $$$$$$$$$$ License Exception $$$$$$$$$$ Username or password could be invalid." I have weblogic.jar in the classpath. I tried adding the line SET WLS61_HOME=M:\bea610\wlserver6.1 to workbench.cmd. It didn't help. Any suggestions?

I already tried this. It does not work. I put the following jars in the classpath in workbench.cmd: msbase.jar;mssqlserver.jar;msutil.jar. Then I start workbench. When I try to enter com.microsoft.jdbc.sqlserver.SQLServerDriver as the driver, I get an exception. Here is the stacktrace:
Exception occurred during event dispatching:
java.lang.ClassCastException: com.webgain.openapi.foundation.uitools.WGDefaultListModel
     at com.webgain.workbench.ui.db.BldrLoginInfoPanel.actionPerformed(Unknown Source)
     at com.webgain.openapi.foundation.uitools.WGListChooser.fireActionEvent(WGListChooser.java:664)
     at com.webgain.openapi.foundation.uitools.WGListChooser$ListDataHandler.contentsChanged(WGListChooser.java:473)
     at javax.swing.AbstractListModel.fireContentsChanged(Unknown Source)
     at com.webgain.openapi.foundation.uitools.WGDefaultListModel.setSelectedItem(WGDefaultListModel.java:740)
     at com.webgain.openapi.foundation.uitools.WGListChooser.setSelectedItem(WGListChooser.java:1446)
     at com.webgain.openapi.foundation.plaf.basic.WGBasicListChooserUI$ListChooserModel.setSelectedItem(WGBasicListChooserUI.java:527)
     at javax.swing.JComboBox.actionPerformed(Unknown Source)
     at javax.swing.plaf.basic.BasicComboBoxUI$EditorFocusListener.focusLost(Unknown Source)
     at java.awt.AWTEventMulticaster.focusLost(Unknown Source)
     at java.awt.AWTEventMulticaster.focusLost(Unknown Source)
     at java.awt.Component.processFocusEvent(Unknown Source)
     at javax.swing.JComponent.processFocusEvent(Unknown Source)
     at java.awt.Component.processEvent(Unknown Source)
     at java.awt.Container.processEvent(Unknown Source)
     at java.awt.Component.dispatchEventImpl(Unknown Source)
     at java.awt.Container.dispatchEventImpl(Unknown Source)
     at java.awt.Component.dispatchEvent(Unknown Source)
     at java.awt.LightweightDispatcher.setFocusRequest(Unknown Source)
     at java.awt.Container.proxyRequestFocus(Unknown Source)
     at java.awt.Container.proxyRequestFocus(Unknown Source)
     at java.awt.Container.proxyRequestFocus(Unknown Source)
     at java.awt.Container.proxyRequestFocus(Unknown Source)
     at java.awt.Container.proxyRequestFocus(Unknown Source)
     at java.awt.Container.proxyRequestFocus(Unknown Source)
     at java.awt.Container.proxyRequestFocus(Unknown Source)
     at java.awt.Container.proxyRequestFocus(Unknown Source)
     at java.awt.Component.requestFocus(Unknown Source)
     at javax.swing.JComponent.grabFocus(Unknown Source)
     at javax.swing.JComponent.requestFocus(Unknown Source)
     at javax.swing.text.DefaultCaret.mousePressed(Unknown Source)
     at java.awt.AWTEventMulticaster.mousePressed(Unknown Source)
     at java.awt.AWTEventMulticaster.mousePressed(Unknown Source)
     at java.awt.AWTEventMulticaster.mousePressed(Unknown Source)
     at java.awt.Component.processMouseEvent(Unknown Source)
     at com.webgain.openapi.foundation.uitools.WGPasswordField.processMouseEvent(WGPasswordField.java:99)
     at java.awt.Component.processEvent(Unknown Source)
     at java.awt.Container.processEvent(Unknown Source)
     at java.awt.Component.dispatchEventImpl(Unknown Source)
     at java.awt.Container.dispatchEventImpl(Unknown Source)
     at java.awt.Component.dispatchEvent(Unknown Source)
     at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
     at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
     at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
     at java.awt.Container.dispatchEventImpl(Unknown Source)
     at java.awt.Window.dispatchEventImpl(Unknown Source)
     at java.awt.Component.dispatchEvent(Unknown Source)
     at java.awt.EventQueue.dispatchEvent(Unknown Source)
     at java.awt.EventDispatchThread.pumpOneEventForHierarchy(Unknown Source)
     at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
     at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
     at java.awt.EventDispatchThread.run(Unknown Source)
If I ignore the exception and try to connect to the database anyway, it tries to use the weblogic driver.
Next I manually edited the database xml file and put in the driver name automatically. When I bought up the mapping workbench again, it again threw an exception. However, the correct driver name was in the file, so it did finally let me connect to the database. So it seems there IS a bug, although it has to do with the GUI and not SQL server per se.

How can I use TopLink for querys that have two and more tables?

I use TopLink today, and I can use one table to query, but how can I use TopLink for querys that have two and more tables?
Thank you for see and answer this question.

You can write a custom SQL query and map it to an object as needed. You can also use the Toplink query language "anyOf" or "get" commands to map two tables as long as you map them as one to one (get command) or one to many (anyOf command) in the toplink mapping workbench.
Zev.
check out oracle.toplink.expressions.Expression in the 10.1.3 API

Problem with multiple Toplink/JPA apps in same server

Anyone have experence of running serveral Toplink/ EJB-3 Web apps in the same server (OC4J, alas)?
We seem to get a problem with the second app failing to initialise toplink, with an entity not found message. Each app runs OK on it's own.

Yes, they access the same datasource and most of the tables overlap.
We're thinking it might help to have common entity classes and put them in a shared library, but I don't know if this is relevant (setting up shared libraries complicates testing and tends to snowball, I reckon we need about 15 jars all told).
I''ve had some funnies on OC4J before which I think may be to do with it's use of ClassLoaders, for example I initially put persistence.xml in the libary jar with the data model, but for some reason I get the entity not found error that way. It only seems to work if it's in the classes folder.
For the moment we're getting arround the problem with multiple OC4J instances in the server.

Please help. Got TopLink working, but now I can't run a JSP page

I am using JDeveloper 9.0.3.
I got TopLink working successfully. Meaning I can access the DB using my mapped TopLink classes from my java code in JDeveloper.
However, now I can't even run the default .jsp page.
I am getting the error:
Error instantiating application at file:/C:/LBIT/LBIT-oc4j-app.xml: Error parsing data-sources config at file:/C:/LBIT/LBIT-data-sources.xml: Fatal error at line 0 offset 0 in file:/C:/LBIT/LBIT-data-sources.xml: The encoding "windows-1252" is not supported.
If I go change the "LBIT-data-sources.xml" file to "ISO-8859-1," as soon as I run the .jsp page (from JDeveloper) the "LBIT-data-sources.xml" file gets overwritten with a new one that contains the "windows-1252" encoding line again.
What can I do to fix this???
I know someone else has run into this problem!!!
Please help. Thanks so much.
Andy

You could change the encoding by doing the following.
Stop Embedded OC4J Server (Run | Terminate | Embedded OC4J Server)
Tools | Preferences
Select Environment
Change the Encoding to ISO-xxxxx
Click OK
Run your JSP now.
Atleast this should fix encoding generated into data-sources.xml
raghu
JDev Team

Purpose of toplink

What is the purpose of toplink?
Kindly explain me
Thanks,
Ervan.

Hi Ervan,
TopLink is a modeling and code generation tool that connects to your database and reads its schema, then lets you map objects to database tables and views, specify single-row insert, update, load, and delete operations, queries and stored procedure calls, as methods to these objects. And, it also lets you define one-to-one, one-to-many, many-to-one, and many-to-many relationships between objects based on relationships between tables in the database. It then generates fully working persistence objects code for you.
There are many other features that TopLink provides but I'm keeping my description brief so I can talk more about the benefits.
ORM Cuts down your development time
A typical application with 15-20 database tables has 30-50 objects (including domain and factory objects) and this is roughly 5000 to 10,000 lines of code. It is likely to take you a few weeks to a couple of months to develop and test this code. And, if your application has more tables than this (which many do), then just multiple the above numbers by that much.
On the other hand, an TopLink would generate this code very fast and easier. Even here, you need these 1-2 days primarily to determine your object mappings to the database. The actual code generation is instantaneous. So, your time saving is tremendous.
TopLink Tool Produces better designed code*
The code that you'll generate from an ORM is very likely going to be better designed than code designed by your own development team.
In brief the Model to Database interaction completelym will be handled by TopLink
Regards,
Vinay

Is possible to pass array/list as parameter in TopLink StoredProcedureCall?

Hi, We need to pass an array/List/Vector of values (each value is a 10 character string) into TopLink's StoredProcedureCall. The maximum number of elements on the list is 3,000 (3,000 * 10 = 30,000 characters).
This exposed two questions:
1. Is it possible to pass a Vector as a parameter in TopLink's StoredProcedureCall, such as
StoredProcedureCall call = new StoredProcedureCall();
call.setProcedureName("STORED_PROCEDURE_NAME");
call.addNamedArgument("PERSON_CODE");
Vector strVect = new Vector(3000);
strVect.add(“ab-gthhjko”);
strVect.add(“cd-gthhjko”);
strVect.add(“ef-gthhjko”);
Vector parameters = new Vector();
parameters.addElement(strVect);
session.executeQuery(query,parameters);
2. If the answer on previous question is yes:
- How this parameter has to be defined in Oracle’s Stored Procedure?
- What is the maximum number of elements/bytes that can be passed into the vector?
The best way that we have found so far was to use single string as a parameter. The individual values would be delimited by comma, such as "ab-gthhjko,cd-gthhjko,ef-gthhjko..."
However, in this case concern is the size that can be 3,000 * 11 = 33, 000 characters. The maximum size of VARCHAR2 is 4000, so we would need to break calls in chunks (max 9 chunks).
Is there any other/more optimal way to do this?
Thanks for your help!
Zoran

Hello,
No, you cannot currently pass a vector of objects as a parameter to a stored procedure. JDBC will not take a vector as an argument unless you want it to serialize it (ie a blob) .
The Oracle database though does have support for struct types and varray types. So you could define a stored procedure to take a VARRAY of strings/varchar, and use that stored procedure through TopLink. For instance:
StoredProcedureCall call = new StoredProcedureCall();
call.setProcedureName("STORED_PROCEDURE_NAME");
call.addNamedArgument("PERSON_CODE");
oracle.sql.ArrayDescriptor descriptor = new oracle.sql.ArrayDescriptor("ARRAYTYPE_NAME", dbconnection);
oracle.sql.ARRAY dbarray = new oracle.sql.ARRAY(descriptor, dbconnection, dataArray);
Vector parameters = new Vector();
parameters.addElement(dbarray);
session.executeQuery(query,parameters);This will work for any values as long as you are not going to pass in null as a value as the driver can determine the type from the object.
dataArray is an Object array consisting of your String objects.
For output or inoutput parameters you need to set the type and typename as well:
sqlcall.addUnamedInOutputArgument("PERSON_CODE", "PERSON_CODE", Types.ARRAY, "ARRAYTYPE_NAME"); which will take a VARRAY and return a VARRAY type object.
The next major release of TopLink will support taking in a vector of strings and performing the conversion to a VARRAY for you, as well as returning a vector instead of a VARRAY for out arguments.
Check out thread
Using VARRAYs as parameters to a Stored Procedure
showing an example on how to get the conection to create the varray, as well as
http://www.oracle.com/technology/sample_code/tech/java/codesnippet/jdbc/varray/index.html on using Varrays in Oracle, though I'm sure the database docs might have more information.
Best Regards,
Chris

Exception [TOPLINK-4002]

Hi,I have no idea,help.thanks
javax.ejb.EJBException: nested exception is: java.rmi.ServerException: RemoteException occurred in server thread; nested exception is:
     java.rmi.RemoteException: null; nested exception is:
     Exception [TOPLINK-4002] (Oracle TopLink Essentials - 2.0 (Build b40-rc (03/20/2007))): oracle.toplink.essentials.exceptions.DatabaseException
Internal Exception: java.sql.SQLException: Error in allocating a connection. Cause: Connection could not be allocated because: java.net.ConnectException： Error Code: 0
java.rmi.ServerException: RemoteException occurred in server thread; nested exception is:
     java.rmi.RemoteException: null; nested exception is:
     Exception [TOPLINK-4002] (Oracle TopLink Essentials - 2.0 (Build b40-rc (03/20/2007))): oracle.toplink.essentials.exceptions.DatabaseException
Internal Exception: java.sql.SQLException: Error in allocating a connection. Cause: Connection could not be allocated because: java.net.ConnectException：Connection refused: connect。
Error Code: 0
     at com.sun.corba.ee.impl.javax.rmi.CORBA.Util.mapSystemException(Util.java:191)
     at com.sun.corba.ee.impl.presentation.rmi.StubInvocationHandlerImpl.privateInvoke(StubInvocationHandlerImpl.java:176)
     at com.sun.corba.ee.impl.presentation.rmi.StubInvocationHandlerImpl.invoke(StubInvocationHandlerImpl.java:123)
     at com.sun.corba.ee.impl.presentation.rmi.bcel.BCELStubBase.invoke(BCELStubBase.java:196)
     at org.acrowise.RCP.__SessionEJB_Remote_DynamicStub.getEmail(__SessionEJB_Remote_DynamicStub.java)
     at org.acrowise.RCP._SessionEJB_Wrapper.getEmail(org.acrowise.RCP._SessionEJB_Wrapper.java)
     at org.acrowise.client.testClient.main(testClient.java:21)
Caused by: java.rmi.RemoteException: null; nested exception is:
     Exception [TOPLINK-4002] (Oracle TopLink Essentials - 2.0 (Build b40-rc (03/20/2007))): oracle.toplink.essentials.exceptions.DatabaseException
Internal Exception: java.sql.SQLException: Error in allocating a connection. Cause: Connection could not be allocated because: java.net.ConnectException： Connection refused: connect。
Error Code: 0
     at com.sun.enterprise.iiop.POAProtocolMgr.mapException(POAProtocolMgr.java:237)
     at com.sun.ejb.containers.BaseContainer.postInvoke(BaseContainer.java:1337)
     at com.sun.ejb.containers.BaseContainer.postInvoke(BaseContainer.java:1267)
     at com.sun.ejb.containers.EJBObjectInvocationHandler.invoke(EJBObjectInvocationHandler.java:197)
     at com.sun.ejb.containers.EJBObjectInvocationHandlerDelegate.invoke(EJBObjectInvocationHandlerDelegate.java:104)
     at $Proxy82.getEmail(Unknown Source)
     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
     at java.lang.reflect.Method.invoke(Method.java:585)
     at com.sun.corba.ee.impl.presentation.rmi.ReflectiveTie._invoke(ReflectiveTie.java:125)
     at com.sun.corba.ee.impl.protocol.CorbaServerRequestDispatcherImpl.dispatchToServant(CorbaServerRequestDispatcherImpl.java:658)
     at com.sun.corba.ee.impl.protocol.CorbaServerRequestDispatcherImpl.dispatch(CorbaServerRequestDispatcherImpl.java:198)
     at com.sun.corba.ee.impl.protocol.CorbaMessageMediatorImpl.handleRequestRequest(CorbaMessageMediatorImpl.java:1821)
     at com.sun.corba.ee.impl.protocol.CorbaMessageMediatorImpl.handleRequest(CorbaMessageMediatorImpl.java:1681)
     at com.sun.corba.ee.impl.protocol.CorbaMessageMediatorImpl.handleInput(CorbaMessageMediatorImpl.java:1063)
     at com.sun.corba.ee.impl.protocol.giopmsgheaders.RequestMessage_1_2.callback(RequestMessage_1_2.java:179)
     at com.sun.corba.ee.impl.protocol.CorbaMessageMediatorImpl.handleRequest(CorbaMessageMediatorImpl.java:781)
     at com.sun.corba.ee.impl.protocol.CorbaMessageMediatorImpl.dispatch(CorbaMessageMediatorImpl.java:538)
     at com.sun.corba.ee.impl.protocol.CorbaMessageMediatorImpl.doWork(CorbaMessageMediatorImpl.java:2542)
     at com.sun.corba.ee.impl.orbutil.threadpool.ThreadPoolImpl$WorkerThread.run(ThreadPoolImpl.java:502)
Caused by: Exception [TOPLINK-4002] (Oracle TopLink Essentials - 2.0 (Build b40-rc (03/20/2007))): oracle.toplink.essentials.exceptions.DatabaseException
Internal Exception: java.sql.SQLException: Error in allocating a connection. Cause: Connection could not be allocated because: java.net.ConnectException： Connection refused: connect。
Error Code: 0
     at oracle.toplink.essentials.exceptions.DatabaseException.sqlException(DatabaseException.java:290)
     at oracle.toplink.essentials.jndi.JNDIConnector.connect(JNDIConnector.java:135)
     at oracle.toplink.essentials.sessions.DatasourceLogin.connectToDatasource(DatasourceLogin.java:170)
     at oracle.toplink.essentials.internal.sessions.DatabaseSessionImpl.loginAndDetectDatasource(DatabaseSessionImpl.java:537)
     at oracle.toplink.essentials.ejb.cmp3.EntityManagerFactoryProvider.login(EntityManagerFactoryProvider.java:206)
     at oracle.toplink.essentials.internal.ejb.cmp3.EntityManagerSetupImpl.deploy(EntityManagerSetupImpl.java:212)
     at oracle.toplink.essentials.internal.ejb.cmp3.base.EntityManagerFactoryImpl.getServerSession(EntityManagerFactoryImpl.java:78)
     at oracle.toplink.essentials.internal.ejb.cmp3.base.EntityManagerFactoryImpl.createEntityManagerImpl(EntityManagerFactoryImpl.java:111)
     at oracle.toplink.essentials.internal.ejb.cmp3.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:84)
     at com.sun.enterprise.util.EntityManagerWrapper._getDelegate(EntityManagerWrapper.java:335)
     at com.sun.enterprise.util.EntityManagerWrapper.createNamedQuery(EntityManagerWrapper.java:733)
     at org.acrowise.RCP.SessionEJBBean.getEmail(SessionEJBBean.java:98)
     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 com.sun.enterprise.security.application.EJBSecurityManager.runMethod(EJBSecurityManager.java:1055)
     at com.sun.enterprise.security.SecurityUtil.invoke(SecurityUtil.java:163)
     at com.sun.ejb.containers.BaseContainer.invokeTargetBeanMethod(BaseContainer.java:2846)
     at com.sun.ejb.containers.BaseContainer.intercept(BaseContainer.java:3930)
     at com.sun.ejb.containers.EJBObjectInvocationHandler.invoke(EJBObjectInvocationHandler.java:190)
     ... 17 more
Caused by: java.sql.SQLException: Error in allocating a connection. Cause: Connection could not be allocated because: java.net.ConnectException： Connection refused: connect。
     at com.sun.gjc.spi.base.DataSource.getConnection(DataSource.java:102)
     at oracle.toplink.essentials.jndi.JNDIConnector.connect(JNDIConnector.java:130)
     ... 36 more
javax.ejb.EJBException: nested exception is: java.rmi.ServerException: RemoteException occurred in server thread; nested exception is:
     java.rmi.RemoteException: null; nested exception is:
     Exception [TOPLINK-4002] (Oracle TopLink Essentials - 2.0 (Build b40-rc (03/20/2007))): oracle.toplink.essentials.exceptions.DatabaseException
Internal Exception: java.sql.SQLException: Error in allocating a connection. Cause: Connection could not be allocated because: java.net.ConnectException Connection refused: connect。
Error Code: 0
     at org.acrowise.RCP._SessionEJB_Wrapper.getEmail(org.acrowise.RCP._SessionEJB_Wrapper.java)
     at org.acrowise.client.testClient.main(testClient.java:21)

TopLink Essentials is attempting to connect to a data source within your container and failing. Does the data source name provided in your persistence.xml match what is configured in the container?
Doug

TopLink 9.0.4

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