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https://issues.apache.org/jira/browse/OWB-534?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12999987#comment-12999987
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Matthias Weßendorf commented on OWB-534:
----------------------------------------
Stack trace:
Caused by: java.lang.NullPointerException
at
net.wessendorf.enterprise.jpa.dao.AbstractGenericDao.create(AbstractGenericDao.java:16)
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.apache.webbeans.intercept.InvocationContextImpl.proceedAroundInvokes(InvocationContextImpl.java:255)
at
org.apache.webbeans.intercept.InvocationContextImpl.proceed(InvocationContextImpl.java:175)
at
org.apache.myfaces.extensions.cdi.jpa.impl.TransactionalInterceptor.invoke(TransactionalInterceptor.java:139)
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.apache.webbeans.intercept.InvocationContextImpl.proceedAroundInvokes(InvocationContextImpl.java:237)
at
org.apache.webbeans.intercept.InvocationContextImpl.proceed(InvocationContextImpl.java:175)
at
org.apache.webbeans.intercept.DependentScopedBeanInterceptorHandler.callAroundInvokes(DependentScopedBeanInterceptorHandler.java:86)
at
org.apache.webbeans.intercept.InterceptorHandler.invoke(InterceptorHandler.java:266)
at
org.apache.webbeans.intercept.DependentScopedBeanInterceptorHandler.invoke(DependentScopedBeanInterceptorHandler.java:75)
at
net.wessendorf.enterprise.jpa.dao.EmployeeDaoImpl_$$_javassist_32.create(EmployeeDaoImpl_$$_javassist_32.java)
at
net.wessendorf.enterprise.service.EmployeeServiceImpl.saveEmployee(EmployeeServiceImpl.java:38)
at
net.wessendorf.enterprise.faces.CreateEmployeeController.createEmployee(CreateEmployeeController.java:34)
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.apache.webbeans.intercept.InterceptorHandler.invoke(InterceptorHandler.java:287)
at
org.apache.webbeans.intercept.NormalScopedBeanInterceptorHandler.invoke(NormalScopedBeanInterceptorHandler.java:98)
at
net.wessendorf.enterprise.faces.CreateEmployeeController_$$_javassist_31.createEmployee(CreateEmployeeController_$$_javassist_31.java)
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 com.sun.el.parser.AstValue.invoke(AstValue.java:234)
at com.sun.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:297)
at
org.apache.myfaces.view.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:83)
... 42 more
> Injection of @PersistenceContext does not work with abstract/base classes
> -------------------------------------------------------------------------
>
> Key: OWB-534
> URL: https://issues.apache.org/jira/browse/OWB-534
> Project: OpenWebBeans
> Issue Type: Bug
> Components: Injection and Lookup
> Affects Versions: 1.0.0
> Reporter: Matthias Weßendorf
> Assignee: Gurkan Erdogdu
> Priority: Critical
>
> I am using an "AbstractGenericDao" class for all of my DAOs.
> In there I use @PersistenceContext(unitName = "myUnit") to inject the
> EntityManager
> The concrete DAO (e.g. EmployeeDao (which extends AbstractGenericDao)) is
> inject (via @Inject) to a Service IMPL.
> Now, when executing some logic on that DAO, where it delegates to the
> EntityManager (e.g. em.persist(...);) I am getting a NullPointerException,
> indicating that the EntityManager is NULL
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