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Re: [Jersey] Failure [Returned null to createEntityManagerFactory.] in CustomerDB Sample (From NB 6.0.1) on Sailfin Milestone 4 Build

From: Louis Alexander <panicked.kernel_at_gmail.com>
Date: Thu, 15 May 2008 15:59:58 -0400

Peter,

On Thu, May 15, 2008 at 3:43 PM, Peter Liu <Peter.Liu_at_sun.com> wrote:

> That's very strange. One thing you can try is to create the customerdb
> project from scratch and see if it works. Here is how:
>
> 1. Create a web project.
> 2. Right click on the project node and select "Entity Classes from
> Database"
> 3. In the wizard, click on the Data Source combo box and select
> jdbc/sample. (The wizard should then load
> the available tables into the wizard.)
> 4. Select CUSTOMER and DISCOUNT_CODE tables from the Available Table list
> and click on Add.
> 5. Click on Next and in the next panel, specify a package name and then
> click on the
> "Create Persistence Unit" button.
> 6. In the "Create Persistence Unit" dialog, simply click on Create.
> 7. Click on Finish to generated the entity classes.
> 8. Right click on the project node and select "RESTful Web Services from
> Entity Classes".
> 9. In the wizard, you should see Customer and DiscountCode entity classes.
> Click on Add All.
> 10. Click on Next and then Finish to generated the RESTful resource
> classes.
> 11. Right click on the project node and select "Test RESTful Web Services".
>
> Let me know if you can get this to work.
>
> Peter
>
> Louis Alexander wrote:
>
>> Yes it is registered, and i have gotten it to work with one of the
>> persistence examples from Carol McDonald's blog (
>> http://weblogs.java.net/blog/caroljmcdonald/archive/2007/09/sample_applicat_2.html
>> )
>>
>> But when it comes to RESTful web serves + Persistence, i just get that
>> exception.
>>
>> Thanks
>>
>>
>> On Thu, May 15, 2008 at 3:05 PM, Peter Liu <Peter.Liu_at_sun.com <mailto:
>> Peter.Liu_at_sun.com>> wrote:
>>
>> Hi Louis,
>>
>> The sample project uses the sample derby database that comes with
>> NB and uses the jdbc/sample datasource registered with the appserver.
>> Could you check to see if this datasource is registered with your
>> Sailfin instance?
>>
>> Peter
>>
>>
>> Louis Alexander wrote:
>>
>> All,
>>
>> Im running NB 6.0.1 with Sailfin (essentially glassfish)
>> milestone 4 build. I am having trouble getting a RESTful
>> service built on top of Entity classes to work. I have no
>> problem getting persistent entity beans to work in general,
>> and have had success using the TopLink as the Persistence
>> Provider with derby. To make sure i wasn't going insane, i
>> opened the new project wizard and created an instance of the
>> Samples->RESTful Web Services->Customer Database project which
>> is described as "a web project containing RESTful web services
>> based on entity classes generated from a customer database".
>> When i built and deployed the project (after launching my
>> update manager in sailfin/glassfish to ensure that there were
>> no new updates to the Jersey framework) i popped open the
>> RESTful Web Service Tester only to find the same exception
>> that i had with my own code. Can anyone point me in the right
>> direction? I have tried tweaking my persistence.xml by hand,
>> as well as changing Persistence providers (but i know TopLink
>> should work, it has earlier this week).
>>
>> Here is this exception i get, i hope it looks familiar to someone:
>>
>> StandardWrapperValve[ServletAdaptor]: PWC1406:
>> Servlet.service() for servlet ServletAdaptor threw exception
>> javax.persistence.PersistenceException: No Persistence
>> provider for EntityManager named CustomerDBPU: The following
>> providers:
>> oracle.toplink.essentials.ejb.cmp3.EntityManagerFactoryProvider
>> oracle.toplink.essentials.PersistenceProvider
>> Returned null to createEntityManagerFactory.
>> at
>>
>> javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:154)
>> at
>>
>> javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:83)
>> at
>>
>> customerdb.service.PersistenceService.<init>(PersistenceService.java:69)
>> at
>>
>> customerdb.service.PersistenceService.<init>(PersistenceService.java:55)
>> at
>>
>> customerdb.service.PersistenceService$1.initialValue(PersistenceService.java:60)
>> at
>>
>> customerdb.service.PersistenceService$1.initialValue(PersistenceService.java:59)
>> at
>>
>> java.lang.ThreadLocal$ThreadLocalMap.getAfterMiss(ThreadLocal.java:374)
>> at
>> java.lang.ThreadLocal$ThreadLocalMap.get(ThreadLocal.java:347)
>> at
>>
>> java.lang.ThreadLocal$ThreadLocalMap.access$000(ThreadLocal.java:225)
>> at java.lang.ThreadLocal.get(ThreadLocal.java:127)
>> at
>>
>> customerdb.service.PersistenceService.getInstance(PersistenceService.java:86)
>> at
>>
>> customerdb.service.DiscountCodesResource.get(DiscountCodesResource.java:101)
>> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native
>> Method)
>> at
>>
>> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
>> at
>>
>> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>> at java.lang.reflect.Method.invoke(Method.java:585)
>> at
>>
>> com.sun.ws.rest.impl.model.method.dispatch.EntityParamDispatchProvider$TypeOutInvoker._dispatch(EntityParamDispatchProvider.java:107)
>> at
>>
>> com.sun.ws.rest.impl.model.method.dispatch.ResourceJavaMethodDispatcher.dispatch(ResourceJavaMethodDispatcher.java:66)
>> at
>>
>> com.sun.ws.rest.impl.uri.rules.HttpMethodRule.accept(HttpMethodRule.java:108)
>> at
>>
>> com.sun.ws.rest.impl.uri.rules.ResourceClassRule.accept(ResourceClassRule.java:55)
>> at
>>
>> com.sun.ws.rest.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:88)
>> at
>>
>> com.sun.ws.rest.impl.uri.rules.RootResourceClassesRule.accept(RootResourceClassesRule.java:49)
>> at
>>
>> com.sun.ws.rest.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:369)
>> at
>>
>> com.sun.ws.rest.spi.container.servlet.ServletContainer.service(ServletContainer.java:130)
>> at
>> javax.servlet.http.HttpServlet.service(HttpServlet.java:831)
>> at
>>
>> org.apache.catalina.core.ApplicationFilterChain.servletService(ApplicationFilterChain.java:411)
>> at
>>
>> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:317)
>> at
>>
>> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:198)
>> at
>>
>> org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:390)
>> at
>>
>> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:230)
>> at
>>
>> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:198)
>> at
>>
>> org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:288)
>> at
>>
>> org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java:271)
>> at
>>
>> org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:202)
>> at
>>
>> org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:632)
>> at
>>
>> org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:577)
>> at
>> com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:94)
>> at
>>
>> com.sun.enterprise.web.PESessionLockingStandardPipeline.invoke(PESessionLockingStandardPipeline.java:98)
>> at
>>
>> org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:206)
>> at
>>
>> org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:632)
>> at
>>
>> org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:577)
>> at
>>
>> org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:571)
>> at
>>
>> org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:1080)
>> at
>>
>> org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:150)
>> at
>>
>> org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:632)
>> at
>>
>> org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:577)
>> at
>>
>> org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:571)
>> at
>>
>> org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:1080)
>> at
>>
>> org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:272)
>> at
>>
>> com.sun.enterprise.web.connector.grizzly.DefaultProcessorTask.invokeAdapter(DefaultProcessorTask.java:637)
>> at
>>
>> com.sun.enterprise.web.connector.grizzly.DefaultProcessorTask.doProcess(DefaultProcessorTask.java:568)
>> at
>>
>> com.sun.enterprise.web.connector.grizzly.DefaultProcessorTask.process(DefaultProcessorTask.java:813)
>> at
>>
>> com.sun.enterprise.web.connector.grizzly.DefaultReadTask.executeProcessorTask(DefaultReadTask.java:341)
>> at
>>
>> com.sun.enterprise.web.connector.grizzly.DefaultReadTask.doTask(DefaultReadTask.java:263)
>> at
>>
>> com.sun.enterprise.web.connector.grizzly.DefaultReadTask.doTask(DefaultReadTask.java:214)
>> at
>>
>> com.sun.enterprise.web.connector.grizzly.TaskBase.run(TaskBase.java:265)
>> at
>>
>> com.sun.enterprise.web.connector.grizzly.WorkerThreadImpl.run(WorkerThreadImpl.java:116)
>>
>> -- Thanks,
>>
>> Louis
>>
>>
>>
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>>
>>
>>
>> --
>> Thanks,
>>
>> Louis
>>
>
>
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>


-- 
Thanks,
Louis