Eclipse RCP et serveur OSGI avec spring DM

Bonjour à tous,

J'ai suivi, comme beaucoup apparemment, l'excellentissime blog d'Angelo Zerr intitulé "Conception d’un client Eclipse RCP et serveur OSGI avec Spring DM" qui (selon moi) constitue une excellente base de travail pour débuter et essayer de comprendre la programmation par modules.

J'ai choisi de ne développer qu'une fonctionnalité simple comme sur le blog d'Angelo (Customer en lieu et place de User).

J'ai développé les plugins domain, dao, dao.impl, services et services.impl en suivant les billets à priori jusqu'au billet 17 (avec un bout du billet 18 avec l'utilisation de la factory LocalContainerEntityManagerFactoryBean mais sans LTW).

J'ai choisi une implémentation JPA avec EclipseLink avec la base de données H2.

J'ai validé ces plugins avec une application Java qui me permet de créer et afficher des "Customers". Dans ce projet Java, j'ai déclaré dans le classpath tous les plugins qui sont dans la Target Platform de mes autres plugins et mes deux applications Java CreateCustomerTest et FindAllCustomersTest, qui sont des applications clientes de mes services osgi, fonctionnent :

Je joins le code de l'application "CreateCustomerTest "

Code:

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package com.perdigal.client.test;
 
import com.perdigal.server.services.ICustomerService;
 
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
 
public class CreateCustomerTest {
	public static void main(String[] args) {
 
		// 1. Load XML Spring file
		ApplicationContext applicationContext = new ClassPathXmlApplicationContext("com/perdigal/client/applicationContext-jpa.xml");
 
		// 2. Get service from Spring container
		ICustomerService l_customerService = (ICustomerService) applicationContext.getBean("CustomerService");
 
		try	{
			// 3. Create customer
 
			if(! l_customerService.isRegistered("Frédéric", "TOTO"))	{
				l_customerService.addCustomer("Frédéric", "TOTO");
			} else {
				System.err.println("Customer TOTO already registered");
			}
 
			if(! l_customerService.isRegistered("Hervé", "TATA"))	{
				l_customerService.addCustomer("Hervé", "TATA");
			} else {
				System.err.println("Customer TATA already registered");
			}
 
			if(! l_customerService.isRegistered("Eric", "TITI"))	{
				l_customerService.addCustomer("Eric", "TITI");
			} else {
				System.err.println("Customer TITI already registered");
			}
 
			if(! l_customerService.isRegistered("Guilhem", "TUTU"))	{
				l_customerService.addCustomer("Guilhem", "TUTU");
			} else {
				System.err.println("Customer TUTU already registered");
			}
		} catch(Exception e)	{
			System.err.println(e.getLocalizedMessage());
		}
	}
}

Ensuite, j'ai voulu tester mes plugins avec une application RCP qui affiche la liste des "Customers" dans une View, et c'est là que je suis bloqué (depuis un bon mois) avec l'erreur suivante :

Code:

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osgi> Start bundle [com.perdigal.server.dao.impl]
0    [Start Level Event Dispatcher] INFO  org.springframework.osgi.extender.internal.activator.ContextLoaderListener  - Starting 
 
[org.springframework.osgi.extender] bundle v.[1.2.0]
131  [Start Level Event Dispatcher] INFO  org.springframework.osgi.extender.internal.support.ExtenderConfiguration  - No custom extender 
 
configuration detected; using defaults...
136  [Start Level Event Dispatcher] INFO  org.springframework.scheduling.timer.TimerTaskExecutor  - Initializing Timer
194  [Start Level Event Dispatcher] INFO  org.springframework.osgi.extender.support.DefaultOsgiApplicationContextCreator  - Discovered 
 
configurations {osgibundle:/META-INF/spring/*.xml} in bundle [Plugin d'implémentation des DAO (com.perdigal.server.dao.impl)]
229  [SpringOsgiExtenderThread-1] INFO  org.springframework.osgi.context.support.OsgiBundleXmlApplicationContext  - Refreshing 
 
org.springframework.osgi.context.support.OsgiBundleXmlApplicationContext@1342ba4: display name [OsgiBundleXmlApplicationContext
 
(bundle=com.perdigal.server.dao.impl, config=osgibundle:/META-INF/spring/*.xml)]; startup date [Sun Sep 05 13:07:49 CEST 2010]; root of context 
 
hierarchy
229  [SpringOsgiExtenderThread-1] INFO  org.springframework.osgi.context.support.OsgiBundleXmlApplicationContext  - Unpublishing application 
 
context OSGi service for bundle Plugin d'implémentation des DAO (com.perdigal.server.dao.impl)
300  [SpringOsgiExtenderThread-1] INFO  org.springframework.beans.factory.xml.XmlBeanDefinitionReader  - Loading XML bean definitions from URL 
 
[bundleentry://13.fwk31843011/META-INF/spring/module-context.xml]
492  [SpringOsgiExtenderThread-1] INFO  org.springframework.beans.factory.xml.XmlBeanDefinitionReader  - Loading XML bean definitions from URL 
 
[bundleentry://13.fwk31843011/META-INF/spring/module-osgi-context.xml]
Start bundle [com.perdigal.server.services.impl]
516  [Start Level Event Dispatcher] INFO  org.springframework.osgi.extender.support.DefaultOsgiApplicationContextCreator  - Discovered 
 
configurations {osgibundle:/META-INF/spring/*.xml} in bundle [OSGI Plugin Services (com.perdigal.server.services.impl)]
528  [SpringOsgiExtenderThread-2] INFO  org.springframework.osgi.context.support.OsgiBundleXmlApplicationContext  - Refreshing 
 
org.springframework.osgi.context.support.OsgiBundleXmlApplicationContext@47a0d4: display name [OsgiBundleXmlApplicationContext
 
(bundle=com.perdigal.server.services.impl, config=osgibundle:/META-INF/spring/*.xml)]; startup date [Sun Sep 05 13:07:49 CEST 2010]; root of 
 
context hierarchy
528  [SpringOsgiExtenderThread-2] INFO  org.springframework.osgi.context.support.OsgiBundleXmlApplicationContext  - Unpublishing application 
 
context OSGi service for bundle OSGI Plugin Services (com.perdigal.server.services.impl)
531  [SpringOsgiExtenderThread-2] INFO  org.springframework.beans.factory.xml.XmlBeanDefinitionReader  - Loading XML bean definitions from URL 
 
[bundleentry://53.fwk31843011/META-INF/spring/module-context.xml]
547  [SpringOsgiExtenderThread-2] INFO  org.springframework.beans.factory.xml.XmlBeanDefinitionReader  - Loading XML bean definitions from URL 
 
[bundleentry://53.fwk31843011/META-INF/spring/module-osgi-context.xml]
618  [SpringOsgiExtenderThread-2] INFO  org.springframework.osgi.context.support.OsgiBundleXmlApplicationContext  - Bean factory for 
 
application context [org.springframework.osgi.context.support.OsgiBundleXmlApplicationContext@47a0d4]: 
 
org.springframework.beans.factory.support.DefaultListableBeanFactory@1e2afb2
639  [SpringOsgiExtenderThread-2] INFO  
 
org.springframework.osgi.extender.internal.dependencies.startup.DependencyWaiterApplicationContextExecutor  - No outstanding OSGi service 
 
dependencies, completing initialization for OsgiBundleXmlApplicationContext(bundle=com.perdigal.server.services.impl, config=osgibundle:/META-
 
INF/spring/*.xml)
640  [SpringOsgiExtenderThread-1] INFO  org.springframework.osgi.context.support.OsgiBundleXmlApplicationContext  - Bean factory for 
 
application context [org.springframework.osgi.context.support.OsgiBundleXmlApplicationContext@1342ba4]: 
 
org.springframework.beans.factory.support.DefaultListableBeanFactory@16d835f
644  [SpringOsgiExtenderThread-1] INFO  
 
org.springframework.osgi.extender.internal.dependencies.startup.DependencyWaiterApplicationContextExecutor  - No outstanding OSGi service 
 
dependencies, completing initialization for OsgiBundleXmlApplicationContext(bundle=com.perdigal.server.dao.impl, config=osgibundle:/META-
 
INF/spring/*.xml)
647  [SpringOsgiExtenderThread-4] INFO  org.springframework.beans.factory.support.DefaultListableBeanFactory  - Pre-instantiating singletons in 
 
org.springframework.beans.factory.support.DefaultListableBeanFactory@16d835f: defining beans 
 
[CustomerDAO,org.springframework.osgi.service.exporter.support.OsgiServiceFactoryBean#0]; root of factory hierarchy
665  [SpringOsgiExtenderThread-3] INFO  org.springframework.beans.factory.support.DefaultListableBeanFactory  - Pre-instantiating singletons in 
 
org.springframework.beans.factory.support.DefaultListableBeanFactory@1e2afb2: defining beans 
 
[CustomerService,org.springframework.osgi.service.exporter.support.OsgiServiceFactoryBean#0]; root of factory hierarchy
Start bundle [com.perdigal.client.rcp.test]
691  [main] INFO  org.springframework.osgi.extender.support.DefaultOsgiApplicationContextCreator  - Discovered configurations 
 
{osgibundle:/META-INF/spring/*.xml} in bundle [RCP client application (com.perdigal.client.rcp.test;singleton:=true)]
713  [SpringOsgiExtenderThread-3] INFO  org.springframework.osgi.service.exporter.support.OsgiServiceFactoryBean  - Publishing service under 
 
classes [{com.perdigal.server.services.ICustomerService}]
716  [SpringOsgiExtenderThread-3] INFO  org.springframework.osgi.context.support.OsgiBundleXmlApplicationContext  - Publishing application 
 
context as OSGi service with properties {org.springframework.context.service.name=com.perdigal.server.services.impl, Bundle-
 
SymbolicName=com.perdigal.server.services.impl, Bundle-Version=1.0.0}
723  [SpringOsgiExtenderThread-3] INFO  org.springframework.osgi.extender.internal.activator.ContextLoaderListener  - Application context 
 
successfully refreshed (OsgiBundleXmlApplicationContext(bundle=com.perdigal.server.services.impl, config=osgibundle:/META-INF/spring/*.xml))
726  [SpringOsgiExtenderThread-4] INFO  org.springframework.osgi.service.exporter.support.OsgiServiceFactoryBean  - Publishing service under 
 
classes [{com.perdigal.server.dao.ICustomerDAO}]
727  [SpringOsgiExtenderThread-4] INFO  org.springframework.osgi.context.support.OsgiBundleXmlApplicationContext  - Publishing application 
 
context as OSGi service with properties {org.springframework.context.service.name=com.perdigal.server.dao.impl, Bundle-
 
SymbolicName=com.perdigal.server.dao.impl, Bundle-Version=1.0.0}
728  [SpringOsgiExtenderThread-4] INFO  org.springframework.osgi.extender.internal.activator.ContextLoaderListener  - Application context 
 
successfully refreshed (OsgiBundleXmlApplicationContext(bundle=com.perdigal.server.dao.impl, config=osgibundle:/META-INF/spring/*.xml))
729  [SpringOsgiExtenderThread-5] INFO  org.springframework.osgi.context.support.OsgiBundleXmlApplicationContext  - Refreshing 
 
org.springframework.osgi.context.support.OsgiBundleXmlApplicationContext@38fff7: display name [OsgiBundleXmlApplicationContext
 
(bundle=com.perdigal.client.rcp.test, config=osgibundle:/META-INF/spring/*.xml)]; startup date [Sun Sep 05 13:07:49 CEST 2010]; root of context 
 
hierarchy
729  [SpringOsgiExtenderThread-5] INFO  org.springframework.osgi.context.support.OsgiBundleXmlApplicationContext  - Unpublishing application 
 
context OSGi service for bundle RCP client application (com.perdigal.client.rcp.test;singleton:=true)
Start RCP Application Test
739  [SpringOsgiExtenderThread-5] INFO  org.springframework.beans.factory.xml.XmlBeanDefinitionReader  - Loading XML bean definitions from URL 
 
[bundleentry://36.fwk31843011/META-INF/spring/module-context.xml]
758  [SpringOsgiExtenderThread-5] INFO  org.springframework.beans.factory.xml.XmlBeanDefinitionReader  - Loading XML bean definitions from URL 
 
[bundleentry://36.fwk31843011/META-INF/spring/module-osgi-context.xml]
801  [SpringOsgiExtenderThread-5] INFO  org.springframework.osgi.context.support.OsgiBundleXmlApplicationContext  - Bean factory for 
 
application context [org.springframework.osgi.context.support.OsgiBundleXmlApplicationContext@38fff7]: 
 
org.springframework.beans.factory.support.DefaultListableBeanFactory@13829d5
820  [SpringOsgiExtenderThread-5] INFO  
 
org.springframework.osgi.extender.internal.dependencies.startup.DependencyWaiterApplicationContextExecutor  - No outstanding OSGi service 
 
dependencies, completing initialization for OsgiBundleXmlApplicationContext(bundle=com.perdigal.client.rcp.test, config=osgibundle:/META-
 
INF/spring/*.xml)
Start bundle [com.perdigal.server.domain]
847  [SpringOsgiExtenderThread-6] INFO  org.springframework.beans.factory.support.DefaultListableBeanFactory  - Pre-instantiating singletons in 
 
org.springframework.beans.factory.support.DefaultListableBeanFactory@13829d5: defining beans 
 
[com.perdigal.client.rcp.test.view,CustomerService]; root of factory hierarchy
880  [SpringOsgiExtenderThread-6] INFO  org.springframework.osgi.context.support.OsgiBundleXmlApplicationContext  - Publishing application 
 
context as OSGi service with properties {org.springframework.context.service.name=com.perdigal.client.rcp.test, Bundle-
 
SymbolicName=com.perdigal.client.rcp.test, Bundle-Version=1.0.0}
881  [SpringOsgiExtenderThread-6] INFO  org.springframework.osgi.extender.internal.activator.ContextLoaderListener  - Application context 
 
successfully refreshed (OsgiBundleXmlApplicationContext(bundle=com.perdigal.client.rcp.test, config=osgibundle:/META-INF/spring/*.xml))
java.lang.NullPointerException
	at com.perdigal.server.services.impl.CustomerServiceImpl.getCustomers(CustomerServiceImpl.java:22)
	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:597)
	at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:307)
	at org.springframework.osgi.service.importer.support.internal.aop.ServiceInvoker.doInvoke(ServiceInvoker.java:58)
	at org.springframework.osgi.service.importer.support.internal.aop.ServiceInvoker.invoke(ServiceInvoker.java:62)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
	at org.springframework.aop.support.DelegatingIntroductionInterceptor.doProceed(DelegatingIntroductionInterceptor.java:131)
	at org.springframework.aop.support.DelegatingIntroductionInterceptor.invoke(DelegatingIntroductionInterceptor.java:119)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
	at org.springframework.osgi.service.util.internal.aop.ServiceTCCLInterceptor.invokeUnprivileged(ServiceTCCLInterceptor.java:56)
	at org.springframework.osgi.service.util.internal.aop.ServiceTCCLInterceptor.invoke(ServiceTCCLInterceptor.java:39)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
	at org.springframework.osgi.service.importer.support.LocalBundleContextAdvice.invoke(LocalBundleContextAdvice.java:59)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
	at org.springframework.aop.support.DelegatingIntroductionInterceptor.doProceed(DelegatingIntroductionInterceptor.java:131)
	at org.springframework.aop.support.DelegatingIntroductionInterceptor.invoke(DelegatingIntroductionInterceptor.java:119)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
	at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
	at $Proxy3.getCustomers(Unknown Source)
	at com.perdigal.client.rcp.test.View.refresh(View.java:103)
	at com.perdigal.client.rcp.test.View.createPartControl(View.java:95)
	at org.eclipse.ui.internal.ViewReference.createPartHelper(ViewReference.java:367)
	at org.eclipse.ui.internal.ViewReference.createPart(ViewReference.java:226)
	at org.eclipse.ui.internal.WorkbenchPartReference.getPart(WorkbenchPartReference.java:595)
	at org.eclipse.ui.internal.PartPane.setVisible(PartPane.java:313)
	at org.eclipse.ui.internal.ViewPane.setVisible(ViewPane.java:529)
	at org.eclipse.ui.internal.presentations.PresentablePart.setVisible(PresentablePart.java:180)
	at org.eclipse.ui.internal.presentations.util.PresentablePartFolder.select(PresentablePartFolder.java:270)
	at org.eclipse.ui.internal.presentations.util.LeftToRightTabOrder.select(LeftToRightTabOrder.java:65)
	at org.eclipse.ui.internal.presentations.util.TabbedStackPresentation.selectPart(TabbedStackPresentation.java:473)
	at org.eclipse.ui.internal.PartStack.refreshPresentationSelection(PartStack.java:1256)
	at org.eclipse.ui.internal.PartStack.setSelection(PartStack.java:1209)
	at org.eclipse.ui.internal.PartStack.showPart(PartStack.java:1608)
	at org.eclipse.ui.internal.PartStack.createControl(PartStack.java:649)
	at org.eclipse.ui.internal.PartStack.createControl(PartStack.java:576)
	at org.eclipse.ui.internal.PartSashContainer.createControl(PartSashContainer.java:568)
	at org.eclipse.ui.internal.PerspectiveHelper.activate(PerspectiveHelper.java:272)
	at org.eclipse.ui.internal.Perspective.onActivate(Perspective.java:982)
	at org.eclipse.ui.internal.WorkbenchPage.onActivate(WorkbenchPage.java:2626)
	at org.eclipse.ui.internal.WorkbenchWindow$27.run(WorkbenchWindow.java:2965)
	at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
	at org.eclipse.ui.internal.WorkbenchWindow.setActivePage(WorkbenchWindow.java:2946)
	at org.eclipse.ui.internal.WorkbenchWindow.busyOpenPage(WorkbenchWindow.java:761)
	at org.eclipse.ui.internal.Workbench$21.runWithException(Workbench.java:1045)
	at org.eclipse.ui.internal.StartupThreading$StartupRunnable.run(StartupThreading.java:31)
	at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
	at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:134)
	at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:3855)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3476)
	at org.eclipse.ui.application.WorkbenchAdvisor.openWindows(WorkbenchAdvisor.java:803)
	at org.eclipse.ui.internal.Workbench$28.runWithException(Workbench.java:1384)
	at org.eclipse.ui.internal.StartupThreading$StartupRunnable.run(StartupThreading.java:31)
	at org.eclipse.swt.widgets.Synchronizer.syncExec(Synchronizer.java:179)
	at org.eclipse.ui.internal.UISynchronizer.syncExec(UISynchronizer.java:150)
	at org.eclipse.swt.widgets.Display.syncExec(Display.java:4312)
	at org.eclipse.ui.internal.StartupThreading.runWithoutExceptions(StartupThreading.java:94)
	at org.eclipse.ui.internal.Workbench.init(Workbench.java:1379)
	at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2335)
	at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2221)
	at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:500)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:493)
	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
	at com.perdigal.client.rcp.test.Application.start(Application.java:22)
	at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:194)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:368)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
	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:597)
	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:559)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:514)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1311)
	at org.eclipse.equinox.launcher.Main.main(Main.java:1287)
7780 [main] INFO  org.springframework.osgi.extender.internal.activator.ContextLoaderListener  - Stopping [org.springframework.osgi.extender] 
 
bundle v.[1.2.0]
7789 [Timer-1] INFO  org.springframework.osgi.context.support.OsgiBundleXmlApplicationContext  - Application Context service already 
 
unpublished
7789 [Timer-1] INFO  org.springframework.osgi.context.support.OsgiBundleXmlApplicationContext  - Closing 
 
org.springframework.osgi.context.support.OsgiBundleXmlApplicationContext@1342ba4: display name [OsgiBundleXmlApplicationContext
 
(bundle=com.perdigal.server.dao.impl, config=osgibundle:/META-INF/spring/*.xml)]; startup date [Sun Sep 05 13:07:49 CEST 2010]; root of context 
 
hierarchy
7789 [Timer-1] INFO  org.springframework.beans.factory.support.DefaultListableBeanFactory  - Destroying singletons in 
 
org.springframework.beans.factory.support.DefaultListableBeanFactory@16d835f: defining beans 
 
[CustomerDAO,org.springframework.osgi.service.exporter.support.OsgiServiceFactoryBean#0]; root of factory hierarchy
7790 [Timer-1] INFO  org.springframework.osgi.service.exporter.support.OsgiServiceFactoryBean  - Unregistered service 
 
[ServiceRegistrationWrapper for {com.perdigal.server.dao.ICustomerDAO}={org.springframework.osgi.bean.name=CustomerDAO, Bundle-
 
SymbolicName=com.perdigal.server.dao.impl, Bundle-Version=1.0.0, service.id=45}]
7790 [Timer-1] INFO  org.springframework.osgi.extender.internal.activator.ContextLoaderListener  - Application context succesfully closed 
 
(OsgiBundleXmlApplicationContext(bundle=com.perdigal.server.dao.impl, config=osgibundle:/META-INF/spring/*.xml))
7791 [Timer-1] INFO  org.springframework.osgi.context.support.OsgiBundleXmlApplicationContext  - Application Context service already 
 
unpublished
7791 [Timer-1] INFO  org.springframework.osgi.context.support.OsgiBundleXmlApplicationContext  - Closing 
 
org.springframework.osgi.context.support.OsgiBundleXmlApplicationContext@38fff7: display name [OsgiBundleXmlApplicationContext
 
(bundle=com.perdigal.client.rcp.test, config=osgibundle:/META-INF/spring/*.xml)]; startup date [Sun Sep 05 13:07:49 CEST 2010]; root of context 
 
hierarchy
7791 [Timer-1] INFO  org.springframework.beans.factory.support.DefaultListableBeanFactory  - Destroying singletons in 
 
org.springframework.beans.factory.support.DefaultListableBeanFactory@13829d5: defining beans 
 
[com.perdigal.client.rcp.test.view,CustomerService]; root of factory hierarchy
7792 [Timer-1] INFO  org.springframework.osgi.extender.internal.activator.ContextLoaderListener  - Application context succesfully closed 
 
(OsgiBundleXmlApplicationContext(bundle=com.perdigal.client.rcp.test, config=osgibundle:/META-INF/spring/*.xml))
7793 [Timer-1] INFO  org.springframework.osgi.context.support.OsgiBundleXmlApplicationContext  - Application Context service already 
 
unpublished
7793 [Timer-1] INFO  org.springframework.osgi.context.support.OsgiBundleXmlApplicationContext  - Closing 
 
org.springframework.osgi.context.support.OsgiBundleXmlApplicationContext@47a0d4: display name [OsgiBundleXmlApplicationContext
 
(bundle=com.perdigal.server.services.impl, config=osgibundle:/META-INF/spring/*.xml)]; startup date [Sun Sep 05 13:07:49 CEST 2010]; root of 
 
context hierarchy
7793 [Timer-1] INFO  org.springframework.beans.factory.support.DefaultListableBeanFactory  - Destroying singletons in 
 
org.springframework.beans.factory.support.DefaultListableBeanFactory@1e2afb2: defining beans 
 
[CustomerService,org.springframework.osgi.service.exporter.support.OsgiServiceFactoryBean#0]; root of factory hierarchy
7794 [Timer-1] INFO  org.springframework.osgi.service.exporter.support.OsgiServiceFactoryBean  - Unregistered service 
 
[ServiceRegistrationWrapper for {com.perdigal.server.services.ICustomerService}={org.springframework.osgi.bean.name=CustomerService, Bundle-
 
SymbolicName=com.perdigal.server.services.impl, Bundle-Version=1.0.0, service.id=43}]
7794 [Timer-1] INFO  org.springframework.osgi.extender.internal.activator.ContextLoaderListener  - Application context succesfully closed 
 
(OsgiBundleXmlApplicationContext(bundle=com.perdigal.server.services.impl, config=osgibundle:/META-INF/spring/*.xml))
7795 [main] INFO  org.springframework.scheduling.timer.TimerTaskExecutor  - Cancelling Timer
Stop bundle [com.perdigal.server.dao.impl]
Stop bundle [com.perdigal.client.rcp.test]
Stop bundle [com.perdigal.server.services.impl]
Stop bundle [com.perdigal.server.domain]

On dirait que le service CustomerService n'est pas enregistré dans le registre osgi mais lorsque je remplace la classe d'implémentation du service "com.perdigal.server.services.impl.CustomerServiceImpl" par une implémentation bouchonnée non JPA du service, la liste des "Customers" s'affiche.

Est-ce que quelqu'un peut m'aider à debugger parce que je ne sais plus par quel bout prendre le problème ;-)

D'avance merci pour votre aide.

Hervé

DynaResume

Bonjour,

au vue de ta stack Trace, je penche pour un NullPointerException dans CustomerServiceImpl.

Penses tu que le DAO soit bien injecté dans ton bean "CustomerServiceImpl" ?

Tu trouveras des exemples de code (basé sur hibernate et pas sur EclipseLink) dans l'appli DynaResume (http://code.google.com/p/dynaresume/) qui a servi de base à Angelo pour ses billets.

Tes commentaires sur le groupe correspondant sont les bienvenus (http://groups.google.fr/group/dynaresume?pli=1)

Bonjour,
Je ne sais pas si le problème vient du code du service car avec un bouchon (sans la DAO) le code fonctionne. Même s'il ressort au niveau du service, je penche plutôt pour un problème entre le service et la DAO.

Voici le code de CustomerServiceImpl

Code:

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package com.perdigal.server.services.impl;
 
import java.util.Collection;
 
import org.springframework.transaction.annotation.Transactional;
 
import com.perdigal.server.dao.ICustomerDAO;
import com.perdigal.server.domain.Customer;
import com.perdigal.server.services.ICustomerService;
 
 
@Transactional(readOnly=true)
public class CustomerServiceImpl implements ICustomerService	{
 
	private ICustomerDAO customerDAO;
 
	public void setICustomerDAO(ICustomerDAO p_customerDAO) {
		this.customerDAO = p_customerDAO;
	}
 
	public Collection<Customer> getCustomers() {
		return customerDAO.getCustomers();
	}
 
	public boolean isRegistered(String p_lname, String p_fname)	{
		Customer l_customer = new Customer(p_lname, p_fname);
		return customerDAO.isRegistered(l_customer);
	}
 
	@Transactional
	public Customer addCustomer(String p_lname, String p_fname)	{
		Customer l_customer = new Customer(p_lname, p_fname);
		return customerDAO.addCustomer(l_customer);
	}
}

et les fichiers spring du plugin com.perdigal.server.services.impl

Fichier module-context.xml

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<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://www.springframework.org/schema/beans
	http://www.springframework.org/schema/beans/spring-beans-2.5.xsd">
 
	<bean id="CustomerService" class="com.perdigal.server.services.impl.CustomerServiceImpl"></bean>
</beans>

et le fichier module-osgi-context.xml

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<?xml version="1.0" encoding="UTF-8"?>
 
<beans xmlns="http://www.springframework.org/schema/beans"
 
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xmlns:osgi="http://www.springframework.org/schema/osgi"
 
	xsi:schemaLocation="http://www.springframework.org/schema/osgi
	http://www.springframework.org/schema/osgi/spring-osgi-1.0.xsd
	http://www.springframework.org/schema/beans
	http://www.springframework.org/schema/beans/spring-beans-2.5.xsd">
 
 
	<osgi:service ref="CustomerService" interface="com.perdigal.server.services.ICustomerService" />
 
</beans>

Le code de la dao (plugin com.perdigal.server.dao.impl)

Code:

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package com.perdigal.server.dao.impl;
 
import java.util.Collection;
 
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import javax.persistence.Query;
 
import com.perdigal.server.dao.ICustomerDAO;
import com.perdigal.server.domain.Customer;
 
public class CustomerDAOImpl implements ICustomerDAO
{
	@PersistenceContext
	private EntityManager entityManager;
 
	public Customer addCustomer(Customer p_customer)	{
		entityManager.persist(p_customer);
		return p_customer;
	}
 
	public boolean isRegistered(Customer p_customer)	{
		Query l_query = entityManager.createQuery("SELECT customer FROM Customer AS customer WHERE customer.firstname = :p_firstname AND customer.lastname = :p_lastname");
		l_query = l_query.setParameter("p_firstname", p_customer.getFirstname()).setParameter("p_lastname", p_customer.getLastname());
		return (l_query.getResultList().size() == 0) ? false : true;
	}
 
	@SuppressWarnings("unchecked")
	public Collection<Customer> getCustomers()	{
		Query l_query = entityManager.createQuery("SELECT customer FROM Customer AS customer");
		return l_query.getResultList();
	}
}

et les fichiers spring du plugin com.perdigal.server.dao.impl

module-context.xml

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<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://www.springframework.org/schema/beans
	http://www.springframework.org/schema/beans/spring-beans-2.5.xsd">
 
	<bean id="CustomerDAO" class="com.perdigal.server.dao.impl.CustomerDAOImpl"></bean>
</beans>

et module-osgi-context.xml

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<?xml version="1.0" encoding="UTF-8"?>
 
<beans xmlns="http://www.springframework.org/schema/beans"
 
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xmlns:osgi="http://www.springframework.org/schema/osgi"
 
	xsi:schemaLocation="http://www.springframework.org/schema/osgi
	http://www.springframework.org/schema/osgi/spring-osgi-1.0.xsd
 
	http://www.springframework.org/schema/beans
	http://www.springframework.org/schema/beans/spring-beans-2.5.xsd">
 
 
	<osgi:service ref="CustomerDAO" interface="com.perdigal.server.dao.ICustomerDAO" />
 
</beans>

et pour finir les fichiers spring du plugin com.perdigal.client.rcp.test

module-context.xml

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<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://www.springframework.org/schema/beans
	http://www.springframework.org/schema/beans/spring-beans-2.5.xsd">
 
	<bean id="com.perdigal.client.rcp.test.view" class="com.perdigal.client.rcp.test.View" scope="prototype">
		<property name="customerService" ref="CustomerService"></property>
	</bean>
</beans>

et module-osgi-context.xml

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<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xmlns:osgi="http://www.springframework.org/schema/osgi"
	xsi:schemaLocation="http://www.springframework.org/schema/osgi  
	http://www.springframework.org/schema/osgi/spring-osgi-1.0.xsd
	http://www.springframework.org/schema/beans   
	http://www.springframework.org/schema/beans/spring-beans-2.5.xsd">
 
	<osgi:reference id="CustomerService" interface="com.perdigal.server.services.ICustomerService" cardinality="0..1" timeout="1000" />
</beans>

et le fichier plugin.xml du plugin com.perdigal.client.rcp.test

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<?xml version="1.0" encoding="UTF-8"?>
<?eclipse version="3.4"?>
<plugin>
   <extension
         id="application"
         point="org.eclipse.core.runtime.applications">
      <application>
         <run
               class="com.perdigal.client.rcp.test.Application">
         </run>
      </application>
   </extension>
   <extension
         point="org.eclipse.ui.perspectives">
      <perspective
            name="Perspective"
            class="com.perdigal.client.rcp.test.Perspective"
            id="com.perdigal.client.rcp.test.perspective">
      </perspective>
   </extension>
   <extension
         point="org.eclipse.ui.views">
      <view
            name="View"
            class="org.eclipse.springframework.util.SpringExtensionFactory"
            id="com.perdigal.client.rcp.test.view">
      </view>
   </extension>
</plugin>