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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 13:51:51 -0400

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