title: javax.ejb.CreateException: Could not create stateless EJB with glassfish and boneCP on intellij-idea
body: <p>I recently began to use Glassfish and boneCP on intellij idea with a simple web app, but there's a bug I can't understand. I believe I followed all the steps in the tutorial. </p>
  
  <p>My model goes like this </p>
  
  <pre><code>@Entity
  public class Song implements Serializable {
  
  @Id
  private String id;
  private String title;
  private LocalDate lastPlayed;
  private int playCount;
  
  public Song() {
      title = "Chant sans titre";
      id = generateId(title);
      lastPlayed = LocalDate.ofEpochDay(0);
      playCount = 0;
  }
  </code></pre>
  
  <p>The EJB</p>
  
  <pre><code>@Stateless
  public class SongDAO {
  
  @PersistenceUnit(unitName = "statisthira_song")
  private EntityManager em;
  
  public void create(Song song){
      try {
          em.persist(song); }  catch (Exception e) { e.printStackTrace(); }
  } 
  </code></pre>
  
  <p>the Servlet</p>
  
  <pre><code>@WebServlet(urlPatterns = "/new-song")
  public class NewSongActionBean extends HttpServlet {
  
  @EJB
  SongDAO dao;
  
  @Override
  protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
      Song song = new Song();
          song.setTitle("This is not a Test - Toby Mac");
          song.setId(song.generateId(song.getTitle()));
      dao.create(song);
  
      this.getServletContext().getRequestDispatcher("/WEB-INF/newsong.jsp").forward(request, response);
  }
  }
  </code></pre>
  
  <p>My persistence.xml file under META-INF</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="UTF-8"?&gt;
  &lt;persistence xmlns="http://java.sun.com/xml/ns/persistence" version="2.0"
           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"&gt;
  
  &lt;persistence-unit name="statisthira_song" transaction-type="JTA"&gt;
      &lt;provider&gt;org.eclipse.persistence.jpa.PersistenceProvider&lt;/provider&gt;
      &lt;jta-data-source&gt;jdbc/bonecp_resource&lt;/jta-data-source&gt;
      &lt;class&gt;statis.hira.model.Song&lt;/class&gt;
  &lt;/persistence-unit&gt;
  
  &lt;/persistence&gt;
  </code></pre>
  
  <p>the server runs without any problem, and when I check the jdbc connection pool with a ping, it succeeds. But when I try to access the url "/new-song", I get this error message</p>
  
  <pre><code>HTTP Status 500 - Internal Server Error
  
  type Exception report
  
  message Internal Server Error
  
  description The server encountered an internal error that prevented it from fulfilling this request.
  
  exception javax.ejb.EJBException: javax.ejb.EJBException: javax.ejb.CreateException: Could not create stateless EJB
  </code></pre>
  
  <p>here's a sample of the stacktrace </p>
  
  <pre><code>javax.ejb.EJBException: javax.ejb.EJBException: javax.ejb.CreateException: Could not create stateless EJB
  at com.sun.ejb.containers.StatelessSessionContainer._getContext(StatelessSessionContainer.java:435)
  at com.sun.ejb.containers.BaseContainer.getContext(BaseContainer.java:2579)
  at com.sun.ejb.containers.BaseContainer.preInvoke(BaseContainer.java:1971)
  at com.sun.ejb.containers.EJBLocalObjectInvocationHandler.invoke(EJBLocalObjectInvocationHandler.java:210)
  at com.sun.ejb.containers.EJBLocalObjectInvocationHandlerDelegate.invoke(EJBLocalObjectInvocationHandlerDelegate.java:88)
  at com.sun.proxy.$Proxy194.create(Unknown Source)
  at statis.hira.dao.__EJB31_Generated__SongDAO__Intf____Bean__.create(Unknown Source)
  at statis.hira.servlets.NewSongActionBean.doGet(NewSongActionBean.java:26)
  at javax.servlet.http.HttpServlet.service(HttpServlet.java:687)
  at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
  at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1682)
  at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:318)
  at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:160)
  at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:734)
  at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:673)
  at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:99)
  at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:174)
  at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:416)
  at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:283)
  at com.sun.enterprise.v3.services.impl.ContainerMapper$HttpHandlerCallable.call(ContainerMapper.java:459)
  at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:167)
  at org.glassfish.grizzly.http.server.HttpHandler.runService(HttpHandler.java:206)
  at org.glassfish.grizzly.http.server.HttpHandler.doHandle(HttpHandler.java:180)
  at org.glassfish.grizzly.http.server.HttpServerFilter.handleRead(HttpServerFilter.java:235)
  at org.glassfish.grizzly.filterchain.ExecutorResolver$9.execute(ExecutorResolver.java:119)
  at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeFilter(DefaultFilterChain.java:283)
  at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeChainPart(DefaultFilterChain.java:200)
  at org.glassfish.grizzly.filterchain.DefaultFilterChain.execute(DefaultFilterChain.java:132)
  at org.glassfish.grizzly.filterchain.DefaultFilterChain.process(DefaultFilterChain.java:111)
  at org.glassfish.grizzly.ProcessorExecutor.execute(ProcessorExecutor.java:77)
  at org.glassfish.grizzly.nio.transport.TCPNIOTransport.fireIOEvent(TCPNIOTransport.java:536)
  at org.glassfish.grizzly.strategies.AbstractIOStrategy.fireIOEvent(AbstractIOStrategy.java:112)
  at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.run0(WorkerThreadIOStrategy.java:117)
  at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.access$100(WorkerThreadIOStrategy.java:56)
  at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy$WorkerThreadRunnable.run(WorkerThreadIOStrategy.java:137)
  at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:591)
  at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.run(AbstractThreadPool.java:571)
  at java.lang.Thread.run(Thread.java:745)
  Caused by: javax.ejb.EJBException: javax.ejb.CreateException: Could not create stateless EJB
  at com.sun.ejb.containers.StatelessSessionContainer$SessionContextFactory.create(StatelessSessionContainer.java:700)
  at com.sun.ejb.containers.util.pool.NonBlockingPool.getObject(NonBlockingPool.java:246)
  at com.sun.ejb.containers.StatelessSessionContainer._getContext(StatelessSessionContainer.java:430)
  ... 37 more
  Caused by: javax.ejb.CreateException: Could not create stateless EJB
  at com.sun.ejb.containers.StatelessSessionContainer.createStatelessEJB(StatelessSessionContainer.java:514)
  at com.sun.ejb.containers.StatelessSessionContainer.access$000(StatelessSessionContainer.java:97)
  at com.sun.ejb.containers.StatelessSessionContainer$SessionContextFactory.create(StatelessSessionContainer.java:698)
  ... 39 more
  Caused by: java.lang.IllegalStateException: Exception attempting to inject Env-Prop: statis.hira.dao.SongDAO/em@Field-Injectable Resource. Class name = statis.hira.dao.SongDAO Field name=em@java.lang.String@@@ into class statis.hira.dao.SongDAO: Can not set javax.persistence.EntityManager field statis.hira.dao.SongDAO.em to com.sun.enterprise.container.common.impl.EntityManagerFactoryWrapper
  at org.glassfish.weld.services.InjectionServicesImpl.aroundInject(InjectionServicesImpl.java:175)
  at org.jboss.weld.injection.InjectionContextImpl.run(InjectionContextImpl.java:46)
  at org.jboss.weld.injection.producer.DefaultInjector.inject(DefaultInjector.java:73)
  at org.jboss.weld.injection.producer.StatelessSessionBeanInjector.inject(StatelessSessionBeanInjector.java:60)
  at org.jboss.weld.injection.producer.ejb.SessionBeanInjectionTarget.inject(SessionBeanInjectionTarget.java:140)
  at org.glassfish.weld.services.JCDIServiceImpl.injectEJBInstance(JCDIServiceImpl.java:257)
  at com.sun.ejb.containers.BaseContainer.injectEjbInstance(BaseContainer.java:1748)
  at com.sun.ejb.containers.StatelessSessionContainer.createStatelessEJB(StatelessSessionContainer.java:475)
  ... 41 more
  Caused by: com.sun.enterprise.container.common.spi.util.InjectionException: Exception attempting to inject Env-Prop: statis.hira.dao.SongDAO/em@Field-Injectable Resource. Class name = statis.hira.dao.SongDAO Field name=em@java.lang.String@@@ into class statis.hira.dao.SongDAO: Can not set javax.persistence.EntityManager field statis.hira.dao.SongDAO.em to com.sun.enterprise.container.common.impl.EntityManagerFactoryWrapper
  at com.sun.enterprise.container.common.impl.util.InjectionManagerImpl._inject(InjectionManagerImpl.java:740)
  at com.sun.enterprise.container.common.impl.util.InjectionManagerImpl.inject(InjectionManagerImpl.java:507)
  at com.sun.enterprise.container.common.impl.util.InjectionManagerImpl.injectInstance(InjectionManagerImpl.java:170)
  at org.glassfish.weld.services.InjectionServicesImpl.aroundInject(InjectionServicesImpl.java:165)
  ... 48 more
  Caused by: java.lang.IllegalArgumentException: Can not set javax.persistence.EntityManager field statis.hira.dao.SongDAO.em to com.sun.enterprise.container.common.impl.EntityManagerFactoryWrapper
  at sun.reflect.UnsafeFieldAccessorImpl.throwSetIllegalArgumentException(UnsafeFieldAccessorImpl.java:167)
  at sun.reflect.UnsafeFieldAccessorImpl.throwSetIllegalArgumentException(UnsafeFieldAccessorImpl.java:171)
  at sun.reflect.UnsafeObjectFieldAccessorImpl.set(UnsafeObjectFieldAccessorImpl.java:81)
  at java.lang.reflect.Field.set(Field.java:764)
  at com.sun.enterprise.container.common.impl.util.InjectionManagerImpl._inject(InjectionManagerImpl.java:688)
  ... 51 more
  </code></pre>