4 Replies Latest reply on Sep 1, 2010 4:33 PM by ricardocampos.ricardocampos.searchtecnologia.com.br

Possible bugs in JBoss 6 M4: produced entity beans & injection in webservices

ricardocampos.ricardocampos.searchtecnologia.com.br Aug 30, 2010 1:28 PM

Hello all!

I'm having two issues with JBoss 6 M4 and CDI.

1st Issue: Produced entity bean unknown to EntityManager

It seems that the EntityManager doesn't recognize an entity bean if it comes from a producer method. Maybe it has something to do with its Javassist tranformation.

Source

package issues.issue1;

import java.io.Serializable;

import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;

@Entity
public class TestEntity implements Serializable {

  private Long id;
  private String testValue;

  @Id
  @GeneratedValue
  public Long getId() {
    return id;
  }

  public void setId(Long id) {
    this.id = id;
  }

  public String getTestValue() {
    return testValue;
  }

  public void setTestValue(String testValue) {
    this.testValue = testValue;
  }

}

package issues.issue1;

import javax.ejb.Stateless;
import javax.enterprise.context.RequestScoped;
import javax.enterprise.inject.Produces;
import javax.inject.Named;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;

@Stateless
public class TestProducer {

  @Produces
  @TestDatabase
  @PersistenceContext
  public static EntityManager entityManager;

  @Produces
  @ProducedEntity
  @RequestScoped
  @Named
  public TestEntity getTestEntity() {
    return new TestEntity();
  }

}

package issues.issue1;

import javax.ejb.Stateful;
import javax.enterprise.context.RequestScoped;
import javax.inject.Inject;
import javax.inject.Named;
import javax.persistence.EntityManager;

@Stateful
@RequestScoped
@Named
public class TestAction {

  @Inject
  @TestDatabase
  private EntityManager entityManager;

  @Inject
  @ProducedEntity
  private TestEntity testEntity;

  public void testPersistence() {
    entityManager.persist(testEntity);
  }

}

qualifiers

package issues.issue1;

import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

import javax.inject.Qualifier;

@Qualifier
@Retention(RetentionPolicy.RUNTIME)
@Target({ ElementType.TYPE, ElementType.METHOD, ElementType.FIELD, ElementType.PARAMETER })
public @interface TestDatabase {}

package issues.issue1;

import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

import javax.inject.Qualifier;

@Qualifier
@Retention(RetentionPolicy.RUNTIME)
@Target({ ElementType.TYPE, ElementType.METHOD, ElementType.FIELD, ElementType.PARAMETER })
public @interface ProducedEntity {}

index.xhtml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xmlns:f="http://java.sun.com/jsf/core" xmlns:h="http://java.sun.com/jsf/html" xmlns:ui="http://java.sun.com/jsf/facelets">
<h:head>
 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
 <title>Issues</title>
</h:head>
<h:body>
 <h:messages />
 <h:form>
  <h:outputLabel value="Value" />
  <h:inputText value="#{testEntity.testValue}" />
  <h:commandButton value="Test" action="#{testAction.testPersistence}" />
 </h:form>
</h:body>
</html>

Result

Stacktrace when #{testAction.testPersistence} is executed:

Caused by: java.lang.IllegalArgumentException: Unknown entity: issues.issue1.TestEntity_$$_javassist_26
     at org.hibernate.ejb.AbstractEntityManagerImpl.persist(AbstractEntityManagerImpl.java:671) [:3.5.2-Final]
     at org.jboss.jpa.impl.tx.TransactionScopedEntityManager.persist(TransactionScopedEntityManager.java:206) [:2.0.0]
     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [:1.6.0_16]
     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) [:1.6.0_16]
     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) [:1.6.0_16]
     at java.lang.reflect.Method.invoke(Method.java:597) [:1.6.0_16]
     at org.jboss.weld.util.reflection.SecureReflections$13.work(SecureReflections.java:304) [:1.0.1.SP4]
     at org.jboss.weld.util.reflection.SecureReflectionAccess.run(SecureReflectionAccess.java:54) [:1.0.1.SP4]
     at org.jboss.weld.util.reflection.SecureReflectionAccess.runAsInvocation(SecureReflectionAccess.java:163) [:1.0.1.SP4]
     at org.jboss.weld.util.reflection.SecureReflections.invoke(SecureReflections.java:298) [:1.0.1.SP4]
     at org.jboss.weld.bean.builtin.CallableMethodHandler.invoke(CallableMethodHandler.java:64) [:1.0.1.SP4]
     at org.jboss.weld.util.CleanableMethodHandler.invoke(CleanableMethodHandler.java:43) [:1.0.1.SP4]
     at javax.persistence.EntityManager_$$_javassist_28.persist(EntityManager_$$_javassist_28.java)
     at issues.issue1.TestAction.testPersistence(TestAction.java:23) [:]
     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [:1.6.0_16]
     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) [:1.6.0_16]
     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) [:1.6.0_16]
     at java.lang.reflect.Method.invoke(Method.java:597) [:1.6.0_16]
     at org.jboss.aop.joinpoint.MethodInvocation.invokeTarget(MethodInvocation.java:122) [jboss-aop.jar:2.2.1.Alpha3]
     at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:111) [jboss-aop.jar:2.2.1.Alpha3]
     at org.jboss.ejb3.interceptors.container.ContainerMethodInvocationWrapper.invokeNext(ContainerMethodInvocationWrapper.java:72) [:1.0.7]
     at org.jboss.ejb3.interceptors.aop.InvocationContextInterceptor$InvocationContext.proceed(InvocationContextInterceptor.java:138) [:1.0.7]
     at org.jboss.weld.integration.ejb.interceptor.Jsr299BindingsInterceptor.doMethodInterception(Jsr299BindingsInterceptor.java:143) [:6.0.0.20100721-M4]
     at org.jboss.weld.integration.ejb.interceptor.Jsr299BindingsInterceptor.doAroundInvoke(Jsr299BindingsInterceptor.java:116) [:6.0.0.20100721-M4]
     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [:1.6.0_16]
     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) [:1.6.0_16]
     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) [:1.6.0_16]
     at java.lang.reflect.Method.invoke(Method.java:597) [:1.6.0_16]
     at org.jboss.ejb3.interceptors.aop.EJB3InterceptorInterceptor.invoke(EJB3InterceptorInterceptor.java:83) [:1.0.7]
     at org.jboss.ejb3.interceptors.aop.EJB3InterceptorInterceptor.invoke(EJB3InterceptorInterceptor.java:70) [:1.0.7]
     at org.jboss.ejb3.interceptors.container.ContainerMethodInvocationWrapper.invokeNext(ContainerMethodInvocationWrapper.java:62) [:1.0.7]
     at org.jboss.ejb3.interceptors.aop.InvocationContextInterceptor$InvocationContext.proceed(InvocationContextInterceptor.java:138) [:1.0.7]
     at org.jboss.weld.ejb.SessionBeanInterceptor.aroundInvoke(SessionBeanInterceptor.java:47) [:1.0.1.SP4]
     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [:1.6.0_16]
     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) [:1.6.0_16]
     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) [:1.6.0_16]
     at java.lang.reflect.Method.invoke(Method.java:597) [:1.6.0_16]
     at org.jboss.ejb3.interceptors.aop.EJB3InterceptorInterceptor.invoke(EJB3InterceptorInterceptor.java:83) [:1.0.7]
     at org.jboss.ejb3.interceptors.aop.EJB3InterceptorInterceptor.invoke(EJB3InterceptorInterceptor.java:70) [:1.0.7]
     at org.jboss.ejb3.interceptors.container.ContainerMethodInvocationWrapper.invokeNext(ContainerMethodInvocationWrapper.java:62) [:1.0.7]
     at org.jboss.ejb3.interceptors.aop.InterceptorSequencer.invoke(InterceptorSequencer.java:76) [:1.0.7]
     at org.jboss.ejb3.interceptors.aop.InterceptorSequencer.aroundInvoke(InterceptorSequencer.java:62) [:1.0.7]
     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [:1.6.0_16]
     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) [:1.6.0_16]
     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) [:1.6.0_16]
     at java.lang.reflect.Method.invoke(Method.java:597) [:1.6.0_16]
     at org.jboss.aop.advice.PerJoinpointAdvice.invoke(PerJoinpointAdvice.java:174) [jboss-aop.jar:2.2.1.Alpha3]
     at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.1.Alpha3]
     at org.jboss.ejb3.interceptors.aop.InvocationContextInterceptor.fillMethod(InvocationContextInterceptor.java:72) [:1.0.7]
     at org.jboss.aop.advice.org.jboss.ejb3.interceptors.aop.InvocationContextInterceptor_z_fillMethod_7946314.invoke(InvocationContextInterceptor_z_fillMethod_7946314.java) [:]
     at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.1.Alpha3]
     at org.jboss.ejb3.interceptors.aop.InvocationContextInterceptor.setup(InvocationContextInterceptor.java:88) [:1.0.7]
     at org.jboss.aop.advice.org.jboss.ejb3.interceptors.aop.InvocationContextInterceptor_z_setup_7946314.invoke(InvocationContextInterceptor_z_setup_7946314.java) [:]
     at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.1.Alpha3]
     at org.jboss.ejb3.async.impl.interceptor.FutureSerializingInterceptor.invoke(FutureSerializingInterceptor.java:88) [:1.0.0-alpha-5]
     at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.1.Alpha3]
     at org.jboss.ejb3.connectionmanager.CachedConnectionInterceptor.invoke(CachedConnectionInterceptor.java:62) [:1.5.0-alpha-4]
     at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.1.Alpha3]
     at org.jboss.ejb3.entity.ExtendedPersistenceContextPropagationInterceptor.invoke(ExtendedPersistenceContextPropagationInterceptor.java:60) [:1.5.0-alpha-4]
     at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.1.Alpha3]
     at org.jboss.ejb3.entity.TransactionScopedEntityManagerInterceptor.invoke(TransactionScopedEntityManagerInterceptor.java:56) [:1.5.0-alpha-4]
     at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.1.Alpha3]
     at org.jboss.ejb3.AllowedOperationsInterceptor.invoke(AllowedOperationsInterceptor.java:47) [:1.5.0-alpha-4]
     at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.1.Alpha3]
     at org.jboss.ejb3.tx.NullInterceptor.invoke(NullInterceptor.java:42) [:1.0.3]
     at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.1.Alpha3]
     at org.jboss.ejb3.stateful.StatefulInstanceInterceptor.invoke(StatefulInstanceInterceptor.java:81) [:1.5.0-alpha-4]
     at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.1.Alpha3]
     at org.jboss.ejb3.core.context.SessionInvocationContextAdapter.proceed(SessionInvocationContextAdapter.java:90) [:1.5.0-alpha-4]
     at org.jboss.ejb3.tx2.impl.CMTTxInterceptor.invokeInOurTx(CMTTxInterceptor.java:247) [:0.0.1]
     ... 92 more

2nd Issue: Injection doesn't work in WebServices

It seems weld is not injecting in WebService classes.

Source

package issues.issue2;

import javax.ejb.Stateless;

@Stateless
public class InjectionTest {}

package issues.issue2;

import javax.ejb.Stateless;
import javax.inject.Inject;
import javax.jws.Oneway;
import javax.jws.WebMethod;
import javax.jws.WebService;

@Stateless
@WebService
public class IssueWS {

  @Inject
  private InjectionTest injectionTest;

  @WebMethod
  @Oneway
  public void testing(String issue) {
    System.out.println(injectionTest);
  }

}

Result

Output from IssuWS.testing() when called through a webservice client:

14:14:22,118 INFO  [STDOUT] null

Configuration

web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" version="2.5">

 <context-param>
  <param-name>javax.faces.PROJECT_STAGE</param-name>
  <param-value>Development</param-value>
 </context-param>

 <servlet>
  <servlet-name>Faces Servlet</servlet-name>
  <servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
  <load-on-startup>1</load-on-startup>
 </servlet>

 <servlet>
  <servlet-name>Issue WebService</servlet-name>
  <servlet-class>issues.issue2.IssueWS</servlet-class>
 </servlet>

 <servlet-mapping>
  <servlet-name>Faces Servlet</servlet-name>
  <url-pattern>/faces/*</url-pattern>
 </servlet-mapping>

 <servlet-mapping>
  <servlet-name>Issue WebService</servlet-name>
  <url-pattern>/ws</url-pattern>
 </servlet-mapping>

 <welcome-file-list>
  <welcome-file>faces/index.xhtml</welcome-file>
 </welcome-file-list>

 <session-config>
  <session-timeout>30</session-timeout>
 </session-config>

</web-app>

1. Re: Possible bugs in JBoss 6 M4: produced entity beans & injection in webservices

asiandub Aug 31, 2010 1:27 AM (in response to ricardocampos.ricardocampos.searchtecnologia.com.br)
first: please create two posts for two issues ;-)

(1) Produced entity bean unknown to EntityManager

if you invoke new(), you are not creating any contextual objects (aka managed bean). this will simply create a new POJO (see 7.1 of the 299 Ref)

Don't use Entities as managed beans. They have their own lifecycle, and they don't play well in scopes. (Weld 2.2.1)
Actions
2. Re: Possible bugs in JBoss 6 M4: produced entity beans & injection in webservices

asiandub Aug 31, 2010 1:29 AM (in response to ricardocampos.ricardocampos.searchtecnologia.com.br)

(2) 2nd Issue: Injection doesn't work in WebServices

how does InjectionTest look like?
Actions
3. Re: Possible bugs in JBoss 6 M4: produced entity beans & injection in webservices

pmuir Sep 1, 2010 10:17 AM (in response to ricardocampos.ricardocampos.searchtecnologia.com.br)

As Jan says, don't try to persist the produced object (instead, persist the object that producer method produced).

JAX-WS injection isn't supported in JBoss AS yet.
Actions

4. Re: Possible bugs in JBoss 6 M4: produced entity beans & injection in webservices

ricardocampos.ricardocampos.searchtecnologia.com.br Sep 1, 2010 4:33 PM (in response to ricardocampos.ricardocampos.searchtecnologia.com.br)

Thanx for the replies.

1. Got the point about the Managed Entities... It kind of sucks, 'cause it limits some ideas for easy use. :-)

2. OK, so I will wait for JBoss to inject in webservices (hope soon). Meanwhile, I created a class so I can get an instance of a component inside the webservice:

package br.com.searchtecnologia.getran.serco.negocio.fabricas;

import java.lang.annotation.Annotation;

import javax.enterprise.inject.spi.Bean;
import javax.enterprise.inject.spi.BeanManager;
import javax.naming.InitialContext;

public class Gambi {

  private static BeanManager beanManager;

  static {
    try {
      beanManager = (BeanManager) new InitialContext().lookup("java:comp/BeanManager");
    } catch (Exception e) {
      e.printStackTrace();
    }
  }

  public static <T> T getComponente(Class<T> clazz, Annotation... qualifiers) {
    try {
      Bean<?> bean = beanManager.resolve(beanManager.getBeans(clazz, qualifiers));
      return (T) beanManager.getReference(bean, clazz, beanManager.createCreationalContext(bean));
    } catch (Exception e) {
      e.printStackTrace();
      return null;
    }
  }

}

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