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Posted to dev@openwebbeans.apache.org by "Matthias Weßendorf (JIRA)" <ji...@apache.org> on 2011/02/27 17:34:39 UTC
[jira] Created: (OWB-534) Injection of @PersistenceContext does not
work with abstract/base classes
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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[jira] Commented: (OWB-534) Injection of @PersistenceContext does
not work with abstract/base classes
Posted by "Matthias Weßendorf (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/OWB-534?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12999987#comment-12999987 ]
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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[jira] Resolved: (OWB-534) Injection of @PersistenceContext does
not work with abstract/base classes
Posted by "Mark Struberg (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/OWB-534?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Mark Struberg resolved OWB-534.
-------------------------------
Resolution: Duplicate
Fix Version/s: 1.0.1
1.1.0
Assignee: Mark Struberg (was: Gurkan Erdogdu)
> 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: Mark Struberg
> Priority: Critical
> Fix For: 1.1.0, 1.0.1
>
> Attachments: OWB-534.zip
>
>
> 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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-
For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] Commented: (OWB-534) Injection of @PersistenceContext does
not work with abstract/base classes
Posted by "Matthias Weßendorf (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/OWB-534?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12999991#comment-12999991 ]
Matthias Weßendorf commented on OWB-534:
----------------------------------------
Attached is a simple example. It uses my "abstractGenericDao"
unzip the file and run the following command "mvn".
This downloads jetty etc and starts the container on localhost:9090
afterwards point the browser to that URL and use the app to see the OWB bug.
Click the "all" link - or try to create a new employee ==> Both actions fail due to a NPE in the base DAO class.
================== WORK AROUND ============
Now to make it work.... you could change the EmployeeServiceImpl and replace this:
<toReplace>
@Inject
private EmployeeDao dao;
//private SimpleEmployeeDao dao;
</toReplace>
with this:
<replacement>
@Inject
private SimpleEmployeeDao dao;
</replacement>
==> This makes it working, but it's not desired to use DAOs like that.
The goal is to make the @PersistenceContext annotation working via abstract base classes as well (instead of only simple classes)
> 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
> Attachments: OWB-534.zip
>
>
> 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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[jira] Updated: (OWB-534) Injection of @PersistenceContext does not
work with abstract/base classes
Posted by "Matthias Weßendorf (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/OWB-534?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Matthias Weßendorf updated OWB-534:
-----------------------------------
Attachment: OWB-534.zip
The example application.
Shows the bug (on default)
and has (as described in my comments) an undesired "work around".
> 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
> Attachments: OWB-534.zip
>
>
> 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
--
This message is automatically generated by JIRA.
-
For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] Commented: (OWB-534) Injection of @PersistenceContext does
not work with abstract/base classes
Posted by "Matthias Weßendorf (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/OWB-534?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12999988#comment-12999988 ]
Matthias Weßendorf commented on OWB-534:
----------------------------------------
Using a simple DAO (all in one class - no abstraction, no inheritance) makes it working!
> 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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For more information on JIRA, see: http://www.atlassian.com/software/jira