TomEE + EclipseLink:Die EntityManager-Injektion funktioniert nicht

Question

Ich versuche das zu bekommen Beispiel für JPA + EJB + Facelets läuft im TomEE-Webprofil.Da das Beispiel EclipseLink verwendet, habe ich EclipseLink heruntergeladen und kopiert eclipselink/jlib/eclipselink.jar in die TomEE/lib Verzeichnis.

Frage 1: Ist das die einzige Datei, die ich kopieren muss?

Ich habe mehrere Entity Klassen, eine JSF SessionScoped ManagedBean zur Bearbeitung von Webanfragen, eine Stateful EJB zur Bearbeitung von Datenbankanfragen und eine weitere EJB, die beim Start Daten in die Datenbank lädt.

Nachfolgend finden Sie Codeausschnitte von ManagedBean und Stateful EJB:

@Singleton
@Startup
public class ConfigBean {
    @EJB
    private RequestBean request;

    @PostConstruct
    public void createData() {
        request.createPart("1234-5678-01", 1, "ABC PART", new java.util.Date(),
                "PARTQWERTYUIOPASXDCFVGBHNJMKL", null);    
        // more code here...
    }
}

@Stateful
public class RequestBean {
    private static Logger logger = Logger.getLogger("order.ejb.RequestBean");
    @PersistenceContext
    private EntityManager em;

    public void createPart(String partNumber, int revision, String description,
            java.util.Date revisionDate, String specification,
            Serializable drawing) {
        try {
            Part part = new Part(partNumber, revision, description,
                    revisionDate, specification, drawing);
            em.persist(part); // <--- EXCEPTION THROWN HERE
        } catch (Exception ex) {
            throw new EJBException(ex.getMessage());
        }
    }
}

Wenn die Linie em.persist(part); Wenn ich RequestBean ausführen möchte, erhalte ich die folgende Ausnahme:

WARNING: Injection: No such property 'order.ejb.RequestBean/em' in class order.ejb.RequestBean
May 22, 2012 12:38:39 AM org.apache.openejb.core.transaction.EjbTransactionUtil handleSystemException
SEVERE: The bean instance business method encountered a system exception: The transaction has been marked rollback only because the bean encountered a non-application exception :javax.ejb.EJBException : null
javax.ejb.EJBTransactionRolledbackException: The transaction has been marked rollback only because the bean encountered a non-application exception :javax.ejb.EJBException : null
    at org.apache.openejb.core.ivm.BaseEjbProxyHandler.convertException(BaseEjbProxyHandler.java:350)
    at org.apache.openejb.core.ivm.BaseEjbProxyHandler.invoke(BaseEjbProxyHandler.java:288)
    at order.ejb.RequestBean$LocalBeanProxy.createPart(order/ejb/RequestBean.java)
    at order.ejb.ConfigBean.createData(ConfigBean.java:35)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:601)
    at org.apache.openejb.core.interceptor.ReflectionInvocationContext$Invocation.invoke(ReflectionInvocationContext.java:181)
    at org.apache.openejb.core.interceptor.ReflectionInvocationContext$LifecycleInvocation.invoke(ReflectionInvocationContext.java:213)
    at org.apache.openejb.core.interceptor.ReflectionInvocationContext.proceed(ReflectionInvocationContext.java:163)
    at org.apache.openejb.monitoring.StatsInterceptor.record(StatsInterceptor.java:176)
    at org.apache.openejb.monitoring.StatsInterceptor.PostConstruct(StatsInterceptor.java:104)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:601)
    at org.apache.openejb.core.interceptor.ReflectionInvocationContext$Invocation.invoke(ReflectionInvocationContext.java:181)
    at org.apache.openejb.core.interceptor.ReflectionInvocationContext.proceed(ReflectionInvocationContext.java:163)
    at org.apache.openejb.core.interceptor.InterceptorStack.invoke(InterceptorStack.java:138)
    at org.apache.openejb.BeanContext.newInstance(BeanContext.java:1368)
    at org.apache.openejb.core.singleton.SingletonInstanceManager.createInstance(SingletonInstanceManager.java:174)
    at org.apache.openejb.core.singleton.SingletonInstanceManager.access$100(SingletonInstanceManager.java:66)
    at org.apache.openejb.core.singleton.SingletonInstanceManager$1.call(SingletonInstanceManager.java:115)
    at org.apache.openejb.core.singleton.SingletonInstanceManager$1.call(SingletonInstanceManager.java:113)
    at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
    at java.util.concurrent.FutureTask.run(FutureTask.java:166)
    at org.apache.openejb.core.singleton.SingletonInstanceManager.getInstance(SingletonInstanceManager.java:124)
    at org.apache.openejb.core.singleton.SingletonInstanceManager.initialize(SingletonInstanceManager.java:90)
    at org.apache.openejb.core.singleton.SingletonInstanceManager.start(SingletonInstanceManager.java:81)
    at org.apache.openejb.core.singleton.SingletonContainer.start(SingletonContainer.java:118)
    at org.apache.openejb.assembler.classic.Assembler.createApplication(Assembler.java:795)
    at org.apache.openejb.assembler.classic.Assembler.createApplication(Assembler.java:506)
    at org.apache.tomee.catalina.TomcatWebAppBuilder.startInternal(TomcatWebAppBuilder.java:634)
    at org.apache.tomee.catalina.TomcatWebAppBuilder.configureStart(TomcatWebAppBuilder.java:588)
    at org.apache.tomee.catalina.GlobalListenerSupport.lifecycleEvent(GlobalListenerSupport.java:117)
    at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)
    at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:90)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5161)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1566)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1556)
    at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
    at java.util.concurrent.FutureTask.run(FutureTask.java:166)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
    at java.lang.Thread.run(Thread.java:722)
Caused by: javax.ejb.EJBException
    at order.ejb.RequestBean.createPart(RequestBean.java:59)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:601)
    at org.apache.openejb.core.interceptor.ReflectionInvocationContext$Invocation.invoke(ReflectionInvocationContext.java:181)
    at org.apache.openejb.core.interceptor.ReflectionInvocationContext.proceed(ReflectionInvocationContext.java:163)
    at org.apache.openejb.monitoring.StatsInterceptor.record(StatsInterceptor.java:176)
    at org.apache.openejb.monitoring.StatsInterceptor.invoke(StatsInterceptor.java:95)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:601)
    at org.apache.openejb.core.interceptor.ReflectionInvocationContext$Invocation.invoke(ReflectionInvocationContext.java:181)
    at org.apache.openejb.core.interceptor.ReflectionInvocationContext.proceed(ReflectionInvocationContext.java:163)
    at org.apache.openejb.cdi.CdiInterceptor.invoke(CdiInterceptor.java:129)
    at org.apache.openejb.cdi.CdiInterceptor.access$000(CdiInterceptor.java:45)
    at org.apache.openejb.cdi.CdiInterceptor$1.call(CdiInterceptor.java:66)
    at org.apache.openejb.cdi.CdiInterceptor.aroundInvoke(CdiInterceptor.java:72)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:601)
    at org.apache.openejb.core.interceptor.ReflectionInvocationContext$Invocation.invoke(ReflectionInvocationContext.java:181)
    at org.apache.openejb.core.interceptor.ReflectionInvocationContext.proceed(ReflectionInvocationContext.java:163)
    at org.apache.openejb.core.interceptor.InterceptorStack.invoke(InterceptorStack.java:138)
    at org.apache.openejb.core.stateful.StatefulContainer.businessMethod(StatefulContainer.java:648)
    at org.apache.openejb.core.stateful.StatefulContainer.invoke(StatefulContainer.java:353)
    at org.apache.openejb.core.ivm.EjbObjectProxyHandler.synchronizedBusinessMethod(EjbObjectProxyHandler.java:260)
    at org.apache.openejb.core.ivm.EjbObjectProxyHandler.businessMethod(EjbObjectProxyHandler.java:240)
    at org.apache.openejb.core.ivm.EjbObjectProxyHandler._invoke(EjbObjectProxyHandler.java:91)
    at org.apache.openejb.core.ivm.BaseEjbProxyHandler.invoke(BaseEjbProxyHandler.java:284)
    ... 45 more

Da ich mit der Magie von Java EE nicht sehr vertraut bin, habe ich fast keine Ahnung, was hier falsch läuft, aber ich würde gerne wissen, was die erste Zeile im Stack-Trace oben verursacht:

WARNING: Injection: No such property 'order.ejb.RequestBean/em' in class order.ejb.RequestBean

Frage 2: Aus irgendeinem Grund scheint die Injektion des Entity Managers nicht zu funktionieren.Hat jemand eine Idee warum?

Der Vollständigkeit halber finden Sie unten meine persistence.xml, das ist in der project/src/main/webapp/classes/META-INF/ Verzeichnis:

<?xml version="1.0" encoding="UTF-8"?>
<persistence version="2.0"
    xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd">
    <persistence-unit name="order" transaction-type="JTA">
        <jta-data-source>jdbc/__default</jta-data-source>
        <properties>
            <property name="eclipselink.ddl-generation" value="drop-and-create-tables" />
            <property name="eclipselink.ddl-generation.output-mode"
                value="both" />
        </properties>
    </persistence-unit>
</persistence>

Quellcode

Falls jemand die Verzeichnisstruktur, den Quellcode, die Konfigurationsdateien usw. sehen möchte.des Projekts, auf das ich es hochgeladen habe Github hier.

Answer 1

Aktualisiert persistence.xml OpenJPA zu verwenden, laut Allgemeine PersistenceProvider-Eigenschaften:

<?xml version="1.0" encoding="UTF-8"?>
<persistence version="2.0"
    xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd">
    <persistence-unit name="order" transaction-type="JTA">
        <jta-data-source>jdbc/__default</jta-data-source>
        <properties>
            <property name="openjpa.jdbc.SynchronizeMappings"
                value="buildSchema(foreignKeys=true,schemaAction='dropDB,add')" />
            <property name="openjpa.jdbc.SchemaFactory" value="native(foreignKeys=true)" />
            <property name="openjpa.jdbc.MappingDefaults"
                value="ForeignKeyDeleteAction=restrict, JoinForeignKeyDeleteAction=restrict" />
            <property name="openjpa.Log" value="DefaultLevel=TRACE,SQL=TRACE" />
        </properties>
    </persistence-unit>
</persistence>

Habe immer noch die folgende Ausnahme erhalten:

INFO - Starting OpenJPA 2.2.0 
java.lang.NullPointerException 
        at order.web.OrderManager.getOrders(OrderManager.java:53) 
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) 
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
        at java.lang.reflect.Method.invoke(Method.java:601) 
        at javax.el.BeanELResolver.getValue(BeanELResolver.java:64) 
        at javax.el.CompositeELResolver.getValue(CompositeELResolver.java:58) 
        at org.apache.myfaces.el.unified.resolver.FacesCompositeELResolver.getValue(FacesCompositeELResolver.java:169) 
        at org.apache.el.parser.AstValue.getValue(AstValue.java:169) 
        at org.apache.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:189) 
        at org.apache.myfaces.view.facelets.el.ContextAwareTagValueExpression.getValue(ContextAwareTagValueExpression.java:96) 
        at javax.faces.component._DeltaStateHelper.eval(_DeltaStateHelper.java:246) 
        at javax.faces.component.UIData.getValue(UIData.java:2031) 
        at javax.faces.component.UIData.createDataModel(UIData.java:1979) 
        at javax.faces.component.UIData.getDataModel(UIData.java:1956) 
        at javax.faces.component.UIData.getRowCount(UIData.java:478) 
        at org.apache.myfaces.shared.renderkit.html.HtmlTableRendererBase.encodeInnerHtml(HtmlTableRendererBase.java:366) 
        at org.apache.myfaces.shared.renderkit.html.HtmlTableRendererBase.encodeChildren(HtmlTableRendererBase.java:214) 
        at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:626) 
        at javax.faces.component.UIComponentBase.encodeAll(UIComponentBase.java:524) 
        at javax.faces.component.UIComponentBase.encodeAll(UIComponentBase.java:533) 
        at org.apache.myfaces.view.facelets.FaceletViewDeclarationLanguage.renderView(FaceletViewDeclarationLanguage.java:1908) 
        at org.apache.myfaces.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:285) 
        at javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:59) 
        at org.apache.myfaces.lifecycle.RenderResponseExecutor.execute(RenderResponseExecutor.java:116) 
        at org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:241) 
        at javax.faces.webapp.FacesServlet.service(FacesServlet.java:199) 
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305) 
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) 
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:225) 
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:169) 
        at org.apache.tomee.catalina.OpenEJBValve.invoke(OpenEJBValve.java:44) 
        at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472) 
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168) 
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98) 
        at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:927) 
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118) 
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407) 
        at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:999) 
        at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:565) 
        at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:307) 
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110) 
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603) 
        at java.lang.Thread.run(Thread.java:722) 

Anscheinend ist das ein bekannter Fehler in TomEE 1.0.0, der im Trunk behoben wurde, also habe ich habe den neuesten Beta3-Snapshot heruntergeladen

Jetzt läuft alles gut.