org.jboss.seam.InstantiationException: Could not instantiate Seam component: LearningSEAMByExampleEntityManagerFactory

edemmorny.com | 8 months ago
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Root Cause Analysis

  1. javax.persistence.PersistenceException

    No Persistence provider for EntityManager named LearningSEAMByExample

    at javax.persistence.Persistence.createEntityManagerFactory()
  2. JavaEE 7
    Persistence.createEntityManagerFactory
    1. javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:89)
    2. javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:60)
    2 frames
  3. org.jboss.seam
    EntityManagerFactory.startup
    1. org.jboss.seam.persistence.EntityManagerFactory.createEntityManagerFactory(EntityManagerFactory.java:81)
    2. org.jboss.seam.persistence.EntityManagerFactory.startup(EntityManagerFactory.java:50)
    2 frames
  4. Java RT
    Method.invoke
    1. sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    2. sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    3. sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    4. java.lang.reflect.Method.invoke(Method.java:597)
    4 frames
  5. org.jboss.seam
    Component.newInstance
    1. org.jboss.seam.util.Reflections.invoke(Reflections.java:22)
    2. org.jboss.seam.util.Reflections.invokeAndWrap(Reflections.java:144)
    3. org.jboss.seam.Component.callComponentMethod(Component.java:2219)
    4. org.jboss.seam.Component.callCreateMethod(Component.java:2134)
    5. org.jboss.seam.Component.newInstance(Component.java:2094)
    5 frames