7 Replies Latest reply on Jun 27, 2008 3:12 PM by paul lmc

    No Persistence provider for EntityManager

    James Hannoy Newbie

      Hi,

      I am using the following configuration:

      JBoss 4.2.2 GA and EJB3/JPA.

      Here follows a simple session bean and its remote interface that I've been using:

      public interface Monitor {
      
       abstract EntityManager getEm();
      
       abstract void setEm(EntityManager em);
      
       public State create(String id, float in, int r, int b);
      
       public void createState(State s);
      
       public State findById(String id);
      
      }
      
      
      
      @Stateless
      @Remote(Monitor.class)
      public class MonitorBean implements Monitor {
      
       EntityManagerFactory emf;
       @PersistenceUnit(name = "StateMonitor")
       protected EntityManager em;
      
       public MonitorBean() {
       em = emf.createEntityManager();
       }
      
       public static final String RemoteJNDIName = MonitorBean.class
       .getSimpleName()
       + "/remote";
       public static final String LocalJNDIName = MonitorBean.class
       .getSimpleName()
       + "/local";
      
       public State create(String id, float in, int r, int b) {
      
       final State state = new State(id, in, r, b, Calendar.getInstance().getTime());
      
       getEm().persist(state);
       return state;
       }
      
       public void createState(State s) {
       em.persist(s);
       }
      
       public State findById(String id) {
       return em.find(State.class, id);
       }
      
       public EntityManager getEm() {
       return em;
       }
      
       public void setEm(EntityManager em) {
       this.em = em;
       }
      }
      


      As it can be seen the PU named "StateMonitor" is mentioned.

      Here follows my persistence.xml file:
      <?xml version="1.0" encoding="UTF-8"?>
      <persistence version="1.0"
       xmlns="http://java.sun.com/xml/ns/persistence"
       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_1_0.xsd">
      
      
       <persistence-unit name="StateMonitor">
       <provider>org.hibernate.ejb.HibernatePersistence</provider>
       <jta-data-source>java:/OracleDS</jta-data-source>
       <mapping-file>/META-INF/orm.xml</mapping-file>
      
       <properties>
       <property name="hibernate.show_sql" value="false" />
       <property name="hibernate.format_sql" value="false" />
       <property name="hibernate.connection.datasource"
       value="java:/OracleDS" />
       <property name="oracle.jdbc.driver.OracleDriver"
       value="org.hsqldb.jdbcDriver" />
       <property name="hibernate.connection.url"
       value="jdbc:oracle:thin:@<ip.ip.ip.ip>:1521:<DB>" />
       <property name="hibernate.connection.username"
       value="aaaaa" />
       <property name="hibernate.connection.password"
       value="aaaaa" />
       <property name="hibernate.dialect"
       value="org.hibernate.dialect.Oracle10gDialect" />
       <property name="hibernate.hbm2ddl.auto" value="create" />
       <property name="hibernate.jdbc.use_streams_for_binary"
       value="false" />
       </properties>
       </persistence-unit>
      </persistence>
      


      Here how my build .xml looks like:

      <?xml version="1.0"?>
      
      <!-- ======================================================================= -->
      <!-- JBoss build file -->
      <!-- ======================================================================= -->
      
      <project name="JBoss" default="ejbjar" basedir=".">
       <property environment="env" />
       <property name="src.dir" location="${basedir}/ejbModule/" />
       <property name="src.resources" value="${basedir}/ejbModule/" />
       <property name="jboss.home" value="${env.JBOSS_HOME}" />
       <property name="build.dir" value="${basedir}/build" />
       <property name="build.classes.dir" value="${build.dir}/classes" />
      
      
       <!-- Build classpath -->
       <path id="classpath">
       <fileset dir="E:/jboss-4.2.2.GA/server/default/lib">
       <include name="*.jar" />
       </fileset>
       <fileset dir="${jboss.home}/server/default/deploy/ejb3.deployer">
       <include name="*.jar" />
       </fileset>
       <fileset dir="${jboss.home}/server/default/deploy/jboss-aop-jdk50.deployer">
       <include name="*.jar" />
       </fileset>
       <fileset dir="${jboss.home}/server/default/deploy/jboss-bean.deployer">
       <include name="*.jar" />
       </fileset>
       <fileset dir="${jboss.home}/lib">
       <include name="*.jar" />
       </fileset>
       <fileset dir="E:/eclipse/plugins/org.junit4_4.3.1">
       <include name="*.jar" />
       </fileset>
       <fileset dir="E:/jboss-EJB-3.0_Embeddable_ALPHA_8/lib">
       <include name="jboss-ejb3-all.jar" />
       </fileset>
       <fileset dir="E:/eclipse/plugins/org.apache.derby.core_10.3.1">
       <include name="*.jar" />
       </fileset>
       <fileset dir="E:/hibernate-entitymanager-3.3.1.GA">
       <include name="*.jar" />
       </fileset>
       <fileset dir="E:/hibernate-entitymanager-3.3.1.GA/lib">
       <include name="*.jar" />
       </fileset>
       <fileset dir="E:/hibernate-annotations-3.3.0.GA">
       <include name="*.jar" />
       </fileset>
       <fileset dir="E:/hibernate-annotations-3.3.0.GA/lib">
       <include name="*.jar" />
       </fileset>
       <fileset dir="E:/hibernate-3.2/lib">
       <include name="*.jar" />
       </fileset>
       <fileset dir="E:/hibernate-3.2">
       <include name="*.jar" />
       </fileset>
       <fileset dir="{src.dir}/../oraclelibs">
       <include name="*.jar" />
       </fileset>
       <fileset dir="{src.dir}/../oraclelibs">
       <include name="*.zip" />
       </fileset>
      
       <pathelement location="${build.classes.dir}" />
       <!-- So that we can get jndi.properties for InitialContext and log4j.xml file -->
       <pathelement location="${basedir}/ejbModule/META-INF" />
       </path>
      
       <property name="build.classpath" refid="classpath" />
      
       <!-- =================================================================== -->
       <!-- Prepares the build directory -->
       <!-- =================================================================== -->
       <target name="prepare">
       <mkdir dir="${build.dir}" />
       <mkdir dir="${build.classes.dir}" />
       <copy file="Oracle-ds.xml" todir="${jboss.home}/server/default/deploy" />
       </target>
      
       <!-- =================================================================== -->
       <!-- Compiles the source code -->
       <!-- =================================================================== -->
       <target name="compile" depends="prepare">
       <javac srcdir="${src.dir}" destdir="${build.classes.dir}" debug="on" deprecation="on" optimize="off" includes="**">
       <classpath refid="classpath" />
       </javac>
       </target>
      
       <target name="ejbjar" depends="compile">
       <jar jarfile="build/statemonitor.jar">
       <fileset dir="${build.classes.dir}">
       <include name="entity/*.class" />
       <include name="session/*.class" />
       <include name="exception/*.class" />
       <include name="util/*.class" />
       <include name="testcases/*.class" />
       </fileset>
       <fileset dir="${src.resources}/">
       <include name="META-INF/persistence.xml" />
       <include name="META-INF/orm.xml" />
       <include name="META-INF/jndi.properties" />
       </fileset>
       </jar>
       <copy file="build/statemonitor.jar" todir="${jboss.home}/server/default/deploy" />
       </target>
      
       <target name="run.client" depends="ejbjar">
       <java classname="testcases.TestClient" fork="yes" dir=".">
       <classpath refid="classpath" />
       </java>
       </target>
      
       <!-- =================================================================== -->
       <!-- Cleans up generated stuff -->
       <!-- =================================================================== -->
      
       <target name="clean">
       <delete dir="${build.dir}" />
       <delete file="${jboss.home}/server/default/deploy/statemonitor.jar" />
       <delete file="${jboss.home}/server/default/deploy/Oracle-ds.xml" />
       </target>
      
      </project>
      
      


      As it can be seen I've used all the required jars in the classpath.

      It seems that the server has no issues deploying the application. The following server log confirms this:



      ...................
      ...................
      ....................

      2007-12-24 19:23:29,296 DEBUG [org.jboss.ejb3.Ejb3AnnotationHandler] found EJB3: ejbName=MonitorBean, class=session.MonitorBean, type=STATELESS
      2007-12-24 19:23:29,390 DEBUG [org.hibernate.util.DTDEntityResolver] trying to resolve system-id [http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd]
      2007-12-24 19:23:29,390 DEBUG [org.hibernate.cfg.EJB3DTDEntityResolver] recognized EJB3 ORM namespace; attempting to resolve on classpath under org/hibernate/ejb
      2007-12-24 19:23:29,390 DEBUG [org.hibernate.cfg.EJB3DTDEntityResolver] located [http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd] in classpath
      2007-12-24 19:23:29,421 DEBUG [org.jboss.ejb3.Ejb3Deployment] EJB3 deployment time took: 203
      2007-12-24 19:23:29,421 DEBUG [org.jboss.ejb3.Ejb3Module] Created jboss.j2ee:service=EJB3,module=statemonitor.jar
      2007-12-24 19:23:29,421 DEBUG [org.jboss.system.ServiceController] Creating dependent components for: jboss.j2ee:service=EJB3,module=statemonitor.jar dependents are: []
      2007-12-24 19:23:29,421 DEBUG [org.jboss.deployment.MainDeployer] Done with create step of deploying statemonitor.jar
      2007-12-24 19:23:29,421 DEBUG [org.jboss.deployment.MainDeployer] Begin deployment start file:/E:/jboss-4.2.2.GA/server/default/deploy/statemonitor.jar
      2007-12-24 19:23:29,421 DEBUG [org.jboss.ejb3.EJB3Deployer] start application, deploymentInfo: org.jboss.deployment.DeploymentInfo@206491c1 { url=file:/E:/jboss-4.2.2.GA/server/default/deploy/statemonitor.jar }
      deployer: MBeanProxyExt[jboss.ejb3:service=EJB3Deployer]
      status: Starting
      state: START_DEPLOYER
      watch: file:/E:/jboss-4.2.2.GA/server/default/deploy/statemonitor.jar
      altDD: null
      lastDeployed: 1198504409203
      lastModified: 1198504409203
      mbeans:
      , short name: statemonitor.jar, parent short name: null
      2007-12-24 19:23:29,421 DEBUG [org.jboss.system.ServiceController] starting service jboss.j2ee:service=EJB3,module=statemonitor.jar
      2007-12-24 19:23:29,421 DEBUG [org.jboss.ejb3.Ejb3Module] Starting jboss.j2ee:service=EJB3,module=statemonitor.jar
      2007-12-24 19:23:29,421 INFO [org.jboss.ejb3.JmxKernelAbstraction] creating wrapper delegate for: org.jboss.ejb3.entity.PersistenceUnitDeployment
      2007-12-24 19:23:29,437 INFO [org.jboss.ejb3.JmxKernelAbstraction] installing MBean: persistence.units:jar=statemonitor.jar,unitName=StateMonitor with dependencies:
      2007-12-24 19:23:29,437 INFO [org.jboss.ejb3.JmxKernelAbstraction] jboss.jca:name=OracleDS,service=DataSourceBinding
      2007-12-24 19:23:29,437 DEBUG [org.jboss.system.ServiceController] Creating service persistence.units:jar=statemonitor.jar,unitName=StateMonitor

      ...................
      ...................
      ....................

      2007-12-24 19:23:29,437 DEBUG [org.jboss.ejb3.ServiceDelegateWrapper] Starting persistence.units:jar=statemonitor.jar,unitName=StateMonitor
      2007-12-24 19:23:29,437 INFO [org.jboss.ejb3.entity.PersistenceUnitDeployment] Starting persistence unit persistence.units:jar=statemonitor.jar,unitName=StateMonitor
      2007-12-24 19:23:29,437 DEBUG [org.jboss.ejb3.entity.PersistenceUnitDeployment] Found persistence.xml file in EJB3 jar
      2007-12-24 19:23:29,453 INFO [org.hibernate.ejb.Version] Hibernate EntityManager 3.2.1.GA
      2007-12-24 19:23:29,484 INFO [org.hibernate.cfg.annotations.Version] Hibernate Annotations 3.2.1.GA
      2007-12-24 19:23:29,484 INFO [org.hibernate.cfg.Environment] Hibernate 3.2.4.sp1
      2007-12-24 19:23:29,500 INFO [org.hibernate.cfg.Environment] hibernate.properties not found
      2007-12-24 19:23:29,500 INFO [org.hibernate.cfg.Environment] Bytecode provider name : javassist
      2007-12-24 19:23:29,500 INFO [org.hibernate.cfg.Environment] using JDK 1.4 java.sql.Timestamp handling
      2007-12-24 19:23:29,625 DEBUG [org.hibernate.ejb.Ejb3Configuration] Processing PersistenceUnitInfo [
      name: StateMonitor
      persistence provider classname: org.hibernate.ejb.HibernatePersistence
      classloader: org.jboss.mx.loading.UnifiedClassLoader3@1ca5b68{ url=file:/E:/jboss-4.2.2.GA/server/default/tmp/deploy/tmp22123statemonitor.jar ,addedOrder=46}
      Temporary classloader: org.jboss.mx.loading.UnifiedClassLoader3@19a19fd{ url=file:/E:/jboss-4.2.2.GA/server/default/tmp/deploy/tmp22123statemonitor.jar ,addedOrder=0}
      excludeUnlistedClasses: false
      JTA datasource: org.jboss.resource.adapter.jdbc.WrapperDataSource@1963273
      Non JTA datasource: null
      Transaction type: JTA
      PU root URL: file:/E:/jboss-4.2.2.GA/server/default/deploy/statemonitor.jar
      Jar files URLs []
      Managed classes names []
      Mapping files names [
      /META-INF/orm.xml]
      Properties [
      hibernate.jacc.ctx.id: statemonitor.jar
      hibernate.connection.password: orvetl
      hibernate.cache.region_prefix: statemonitor_jar,StateMonitor
      hibernate.show_sql: false
      hibernate.bytecode.use_reflection_optimizer: false
      hibernate.connection.datasource: java:/OracleDS
      hibernate.transaction.manager_lookup_class: org.hibernate.transaction.JBossTransactionManagerLookup
      hibernate.hbm2ddl.auto: create
      hibernate.jdbc.use_streams_for_binary: false
      hibernate.format_sql: false
      hibernate.session_factory_name: persistence.units:jar=statemonitor.jar,unitName=StateMonitor
      hibernate.connection.username: orvetl
      hibernate.jndi.java.naming.factory.url.pkgs: org.jboss.naming:org.jnp.interfaces
      hibernate.jndi.java.naming.factory.initial: org.jnp.interfaces.NamingContextFactory
      oracle.jdbc.driver.OracleDriver: org.hsqldb.jdbcDriver
      hibernate.cache.provider_class: org.hibernate.cache.HashtableCacheProvider
      hibernate.dialect: org.hibernate.dialect.Oracle10gDialect
      hibernate.connection.url: jdbc:oracle:thin:@10.5.2.101:1521:DBADP1
      hibernate.bytecode.provider: javassist]
      2007-12-24 19:23:29,625 DEBUG [org.hibernate.ejb.Ejb3Configuration] Detect class: true; detect hbm: true
      2007-12-24 19:23:29,625 DEBUG [org.hibernate.ejb.Ejb3Configuration] Detect class: true; detect hbm: true

      ........................
      ...........................
      ........................

      2007-12-24 19:23:29,750 INFO [org.hibernate.ejb.Ejb3Configuration] [PersistenceUnit: StateMonitor] META-INF/orm.xml found
      2007-12-24 19:23:29,765 DEBUG [org.hibernate.cfg.AnnotationConfiguration] Execute first pass mapping processing
      2007-12-24 19:23:29,843 DEBUG [org.hibernate.cfg.AnnotationConfiguration] Process hbm files
      2007-12-24 19:23:29,843 DEBUG [org.hibernate.cfg.AnnotationConfiguration] Process annotated classes
      2007-12-24 19:23:29,843 INFO [org.hibernate.cfg.AnnotationBinder] Binding entity from annotated class: entity.State

      ........................
      ...........................
      ........................

      2007-12-24 19:23:30,921 INFO [org.hibernate.impl.SessionFactoryObjectFactory] Factory name: persistence.units:jar=statemonitor.jar,unitName=StateMonitor
      2007-12-24 19:23:30,937 INFO [org.hibernate.util.NamingHelper] JNDI InitialContext properties:{java.naming.factory.initial=org.jnp.interfaces.NamingContextFactory, java.naming.factory.url.pkgs=org.jboss.naming:org.jnp.interfaces}
      2007-12-24 19:23:30,937 DEBUG [org.hibernate.impl.SessionFactoryImpl] Returning a Reference to the SessionFactory
      2007-12-24 19:23:30,937 DEBUG [org.hibernate.util.NamingHelper] Bound name: persistence.units:jar=statemonitor.jar,unitName=StateMonitor
      2007-12-24 19:23:30,937 INFO [org.hibernate.impl.SessionFactoryObjectFactory] Bound factory to JNDI name: persistence.units:jar=statemonitor.jar,unitName=StateMonitor
      2007-12-24 19:23:30,937 WARN [org.hibernate.impl.SessionFactoryObjectFactory] InitialContext did not implement EventContext
      2007-12-24 19:23:30,937 DEBUG [org.hibernate.impl.SessionFactoryImpl] instantiated session factory
      2007-12-24 19:23:30,937 DEBUG [org.hibernate.cfg.AnnotationConfiguration] Execute first pass mapping processing
      2007-12-24 19:23:30,937 DEBUG [org.hibernate.cfg.AnnotationConfiguration] Process hbm files
      2007-12-24 19:23:30,937 DEBUG [org.hibernate.cfg.AnnotationConfiguration] Process annotated classes
      2007-12-24 19:23:30,937 DEBUG [org.hibernate.cfg.AnnotationConfiguration] processing manytoone fk mappings
      2007-12-24 19:23:30,937 DEBUG [org.hibernate.cfg.Configuration] processing extends queue
      2007-12-24 19:23:30,937 DEBUG [org.hibernate.cfg.Configuration] processing collection mappings
      2007-12-24 19:23:30,937 DEBUG [org.hibernate.cfg.Configuration] processing native query and ResultSetMapping mappings
      2007-12-24 19:23:30,937 DEBUG [org.hibernate.cfg.Configuration] processing association property references
      2007-12-24 19:23:30,937 DEBUG [org.hibernate.cfg.Configuration] processing foreign key constraints
      2007-12-24 19:23:30,937 DEBUG [org.hibernate.validator.ClassValidator] ResourceBundle ValidatorMessages not found in Validator classloader. Delegate to org.hibernate.validator.resources.DefaultValidatorMessages
      2007-12-24 19:23:30,937 DEBUG [org.hibernate.cfg.AnnotationConfiguration] Execute first pass mapping processing
      2007-12-24 19:23:30,937 DEBUG [org.hibernate.cfg.AnnotationConfiguration] Process hbm files
      2007-12-24 19:23:30,937 DEBUG [org.hibernate.cfg.AnnotationConfiguration] Process annotated classes
      2007-12-24 19:23:30,937 DEBUG [org.hibernate.cfg.AnnotationConfiguration] processing manytoone fk mappings
      2007-12-24 19:23:30,937 DEBUG [org.hibernate.cfg.Configuration] processing extends queue
      2007-12-24 19:23:30,937 DEBUG [org.hibernate.cfg.Configuration] processing collection mappings
      2007-12-24 19:23:30,937 DEBUG [org.hibernate.cfg.Configuration] processing native query and ResultSetMapping mappings
      2007-12-24 19:23:30,937 DEBUG [org.hibernate.cfg.Configuration] processing association property references
      2007-12-24 19:23:30,937 DEBUG [org.hibernate.cfg.Configuration] processing foreign key constraints
      2007-12-24 19:23:30,937 DEBUG [org.hibernate.validator.ClassValidator] ResourceBundle ValidatorMessages not found in Validator classloader. Delegate to org.hibernate.validator.resources.DefaultValidatorMessages
      2007-12-24 19:23:30,937 INFO [org.hibernate.tool.hbm2ddl.SchemaExport] Running hbm2ddl schema export

      ........................
      ...........................
      ........................

      2007-12-24 19:23:31,375 DEBUG [org.jboss.ejb3.Ejb3Deployment] Bound ejb3 container jboss.j2ee:jar=statemonitor.jar,name=OSMonitorBean,service=EJB3
      2007-12-24 19:23:31,375 DEBUG [org.jboss.ejb3.Ejb3Module] Started jboss.j2ee:service=EJB3,module=statemonitor.jar
      2007-12-24 19:23:31,375 DEBUG [org.jboss.system.ServiceController] Starting dependent components for: jboss.j2ee:service=EJB3,module=statemonitor.jar dependent components: []
      2007-12-24 19:23:31,375 INFO [org.jboss.ejb3.EJB3Deployer] Deployed: file:/E:/jboss-4.2.2.GA/server/default/deploy/statemonitor.jar
      2007-12-24 19:23:31,375 DEBUG [org.jboss.deployment.MainDeployer] End deployment start on package: statemonitor.jar
      2007-12-24 19:23:31,375 DEBUG [org.jboss.deployment.MainDeployer] Deployed package: file:/E:/jboss-4.2.2.GA/server/default/deploy/statemonitor.jar
      2007-12-24 19:23:31,375 DEBUG [org.jboss.deployment.scanner.URLDeploymentScanner] Watch URL for: file:/E:/jboss-4.2.2.GA/server/default/deploy/statemonitor.jar -> file:/E:/jboss-4.2.2.GA/server/default/deploy/statemonitor.jar

      ..................
      ..................
      ....................



      Finally here follows a typical test client:

      
      public class TestClient {
      
       private EntityManagerFactory emf;
       private EntityManager em;
      
       Monitor bean = null;
      
       public void runTest() throws Exception {
      
       try {
       InitialContext ctx = new InitialContext();
       Agent agent = new Agent();
      
       bean = (Monitor) ctx.lookup(MonitorBean.RemoteJNDIName);
       initEmfAndEm();
       bean.getEm().getTransaction().begin();
      
       System.out.println("Monitor Sateless...");
       bean.create(agent.getId(), agent.getIn(), agent.getR(), agent.getB());
       bean.toString();
      
       bean.getEm().getTransaction().rollback();
      
       } catch (NamingException e) {
       e.printStackTrace();
       }
       }
      
       public void initEmfAndEm() {
       emf = Persistence.createEntityManagerFactory("StateMonitor"); em = emf.createEntityManager();
       bean.setEm(em);
       }
      
       public void closeEmAndEmf() {
       bean.getEm().close();
       emf.close();
       }
      
       public static void main(String[] args) {
       try {
       TestClient cli = new TestClient();
       System.out.println("Created Class...");
       cli.runTest();
      
       } catch (Exception e) {
       e.printStackTrace();
       }
       }
      
      }
      


      While running this using ant (build.xml) I am getting the following error:



      Buildfile: E:\E_WSPACE_EURO\StateMonitor\build.xml
      prepare:
      compile:
      ejbjar:
      run.client:
      [java] Created Class...
      [java] log4j:WARN No appenders could be found for logger (org.hibernate.ejb.Version).
      [java] log4j:WARN Please initialize the log4j system properly.
      [java] javax.persistence.PersistenceException: No Persistence provider for EntityManager named StateMonitor
      [java] at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:55)
      [java] at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:33)
      [java] at testcases.TestClient.initEmfAndEm(TestClient.java:68)
      [java] at testcases.TestClient.runTest(TestClient.java:39)
      [java] at testcases.TestClient.main(TestClient.java:82)
      BUILD SUCCESSFUL
      Total time: 1 second


      Requesting all to help please. Do I need any more config/xmls?

      -Thanks,
      J.


        • 1. Re: No Persistence provider for EntityManager
          James Hannoy Newbie

          Could anybody help me on this please??

          -Thanks
          James.

          • 2. Re: No Persistence provider for EntityManager
            James Hannoy Newbie

            I'm getting the following exception while running the client app:

            E:\StateMonitor>ant run.client
            Buildfile: build.xml
            
            prepare:
            
            compile:
            
            ejbjar:
            
            run.client:
             [java] Created Class...
             [java] MonitorRemote Sateless...
             [java] java.lang.RuntimeException: java.lang.reflect.InvocationTargetExcept
            ion
             [java] at org.jboss.ejb3.EJBContainer.construct(EJBContainer.java:526)
             [java] at org.jboss.ejb3.AbstractPool.create(AbstractPool.java:66)
             [java] at org.jboss.ejb3.InfinitePool.get(InfinitePool.java:49) [java] at org.jboss.ejb3.ThreadlocalPool.create(ThreadlocalPool.java:50
            )
             [java] at org.jboss.ejb3.ThreadlocalPool.get(ThreadlocalPool.java:90)
             [java] at org.jboss.ejb3.stateless.StatelessInstanceInterceptor.invoke(
            StatelessInstanceInterceptor.java:54)
             [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInv
            ocation.java:101)
             [java] at org.jboss.aspects.security.AuthenticationInterceptor.invoke(A
            uthenticationInterceptor.java:77)
             [java] at org.jboss.ejb3.security.Ejb3AuthenticationInterceptor.invoke(
            Ejb3AuthenticationInterceptor.java:110)
             [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInv
            ocation.java:101)
             [java] at org.jboss.ejb3.ENCPropagationInterceptor.invoke(ENCPropagatio
            nInterceptor.java:46)
             [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInv
            ocation.java:101)
             [java] at org.jboss.ejb3.asynchronous.AsynchronousInterceptor.invoke(As
            ynchronousInterceptor.java:106)
             [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInv
            ocation.java:101)
             [java] at org.jboss.ejb3.stateless.StatelessContainer.dynamicInvoke(Sta
            telessContainer.java:304)
             [java] at org.jboss.aop.Dispatcher.invoke(Dispatcher.java:106)
             [java] at org.jboss.aspects.remoting.AOPRemotingInvocationHandler.invok
            e(AOPRemotingInvocationHandler.java:82)
             [java] at org.jboss.remoting.ServerInvoker.invoke(ServerInvoker.java:76
            9)
             [java] at org.jboss.remoting.transport.socket.ServerThread.processInvoc
            ation(ServerThread.java:573)
             [java] at org.jboss.remoting.transport.socket.ServerThread.dorun(Server
            Thread.java:373)
             [java] at org.jboss.remoting.transport.socket.ServerThread.run(ServerTh
            read.java:166)
             [java] Caused by: java.lang.reflect.InvocationTargetException
             [java] at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native
             Method)
             [java] at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeC
            onstructorAccessorImpl.java:39)
             [java] at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Del
            egatingConstructorAccessorImpl.java:27)
             [java] at java.lang.reflect.Constructor.newInstance(Constructor.java:49
            4)
             [java] at org.jboss.ejb3.EJBContainer.construct(EJBContainer.java:514)
             [java] at org.jboss.ejb3.AbstractPool.create(AbstractPool.java:66)
             [java] at org.jboss.ejb3.InfinitePool.get(InfinitePool.java:49)
             [java] at org.jboss.ejb3.ThreadlocalPool.create(ThreadlocalPool.java:50
            )
             [java] at org.jboss.ejb3.ThreadlocalPool.get(ThreadlocalPool.java:90)
             [java] at org.jboss.ejb3.stateless.StatelessInstanceInterceptor.invoke(
            StatelessInstanceInterceptor.java:54)
             [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInv
            ocation.java:101)
             [java] at org.jboss.aspects.security.AuthenticationInterceptor.invoke(A
            uthenticationInterceptor.java:77)
             [java] at org.jboss.ejb3.security.Ejb3AuthenticationInterceptor.invoke(
            Ejb3AuthenticationInterceptor.java:110)
             [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInv
            ocation.java:101)
             [java] at org.jboss.ejb3.ENCPropagationInterceptor.invoke(ENCPropagatio
            nInterceptor.java:46)
             [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInv
            ocation.java:101)
             [java] at org.jboss.ejb3.asynchronous.AsynchronousInterceptor.invoke(As
            ynchronousInterceptor.java:106)
             [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInv
            ocation.java:101)
             [java] at org.jboss.ejb3.stateless.StatelessContainer.dynamicInvoke(Sta
            telessContainer.java:304)
             [java] at org.jboss.aop.Dispatcher.invoke(Dispatcher.java:106)
             [java] at org.jboss.aspects.remoting.AOPRemotingInvocationHandler.invok
            e(AOPRemotingInvocationHandler.java:82)
             [java] at org.jboss.remoting.ServerInvoker.invoke(ServerInvoker.java:76
            9)
             [java] at org.jboss.remoting.transport.socket.ServerThread.processInvoc
            ation(ServerThread.java:573)
             [java] at org.jboss.remoting.transport.socket.ServerThread.dorun(Server
            Thread.java:373)
             [java] at org.jboss.remoting.transport.socket.ServerThread.run(ServerTh
            read.java:166)
             [java] at org.jboss.remoting.MicroRemoteClientInvoker.invoke(MicroRemot
            eClientInvoker.java:163)
             [java] at org.jboss.remoting.Client.invoke(Client.java:1634)
             [java] at org.jboss.remoting.Client.invoke(Client.java:548)
             [java] at org.jboss.aspects.remoting.InvokeRemoteInterceptor.invoke(Inv
            okeRemoteInterceptor.java:62)
             [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInv
            ocation.java:101)
             [java] at org.jboss.aspects.tx.ClientTxPropagationInterceptor.invoke(Cl
            ientTxPropagationInterceptor.java:67)
             [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInv
            ocation.java:101)
             [java] at org.jboss.aspects.security.SecurityClientInterceptor.invoke(S
            ecurityClientInterceptor.java:53)
             [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInv
            ocation.java:101)
             [java] at org.jboss.ejb3.remoting.IsLocalInterceptor.invoke(IsLocalInte
            rceptor.java:74)
             [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInv
            ocation.java:101)
             [java] at org.jboss.ejb3.stateless.StatelessRemoteProxy.invoke(Stateles
            sRemoteProxy.java:107)
             [java] at $Proxy0.create(Unknown Source)
             [java] at testcases.TestClient.runTest(TestClient.java:46)
             [java] at testcases.TestClient.main(TestClient.java:78) [java] at org.jboss.aspects.remoting.InvokeRemoteInterceptor.invoke(Inv
            okeRemoteInterceptor.java:74)
             [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInv
            ocation.java:101)
             [java] at org.jboss.aspects.tx.ClientTxPropagationInterceptor.invoke(Cl
            ientTxPropagationInterceptor.java:67)
             [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInv
            ocation.java:101)
             [java] at org.jboss.aspects.security.SecurityClientInterceptor.invoke(S
            ecurityClientInterceptor.java:53)
             [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInv
            ocation.java:101)
             [java] at org.jboss.ejb3.remoting.IsLocalInterceptor.invoke(IsLocalInte
            rceptor.java:74)
             [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInv
            ocation.java:101)
             [java] at org.jboss.ejb3.stateless.StatelessRemoteProxy.invoke(Stateles
            sRemoteProxy.java:107)
             [java] at $Proxy0.create(Unknown Source)
             [java] at testcases.TestClient.runTest(TestClient.java:46)
             [java] at testcases.TestClient.main(TestClient.java:78)
             [java] Caused by: java.lang.NullPointerException
             [java] at session.MonitorBean.<init>(MonitorBean.java:27)
             [java] at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native
             Method)
             [java] at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeC
            onstructorAccessorImpl.java:39)
             [java] at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Del
            egatingConstructorAccessorImpl.java:27)
             [java] at java.lang.reflect.Constructor.newInstance(Constructor.java:49
            4)
             [java] at org.jboss.ejb3.EJBContainer.construct(EJBContainer.java:514)
             [java] at org.jboss.ejb3.AbstractPool.create(AbstractPool.java:66)
             [java] at org.jboss.ejb3.InfinitePool.get(InfinitePool.java:49)
             [java] at org.jboss.ejb3.ThreadlocalPool.create(ThreadlocalPool.java:50
            )
             [java] at org.jboss.ejb3.ThreadlocalPool.get(ThreadlocalPool.java:90)
             [java] at org.jboss.ejb3.stateless.StatelessInstanceInterceptor.invoke(
            StatelessInstanceInterceptor.java:54)
             [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInv
            ocation.java:101)
             [java] at org.jboss.aspects.security.AuthenticationInterceptor.invoke(A
            uthenticationInterceptor.java:77)
             [java] at org.jboss.ejb3.security.Ejb3AuthenticationInterceptor.invoke(
            Ejb3AuthenticationInterceptor.java:110)
             [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInv
            ocation.java:101)
             [java] at org.jboss.ejb3.ENCPropagationInterceptor.invoke(ENCPropagatio
            nInterceptor.java:46)
             [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInv
            ocation.java:101)
             [java] at org.jboss.ejb3.asynchronous.AsynchronousInterceptor.invoke(As
            ynchronousInterceptor.java:106)
             [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInv
            ocation.java:101)
             [java] at org.jboss.ejb3.stateless.StatelessContainer.dynamicInvoke(Sta
            telessContainer.java:304)
             [java] at org.jboss.aop.Dispatcher.invoke(Dispatcher.java:106)
             [java] at org.jboss.aspects.remoting.AOPRemotingInvocationHandler.invok
            e(AOPRemotingInvocationHandler.java:82)
             [java] at org.jboss.remoting.ServerInvoker.invoke(ServerInvoker.java:76
            9)
             [java] at org.jboss.remoting.transport.socket.ServerThread.processInvoc
            ation(ServerThread.java:573)
             [java] at org.jboss.remoting.transport.socket.ServerThread.dorun(Server
            Thread.java:373)
             [java] at org.jboss.remoting.transport.socket.ServerThread.run(ServerTh
            read.java:166)
            
            BUILD SUCCESSFUL
            Total time: 1 second
            E:\StateMonitor>
            


            Would really appreciate if somebody can help me to figure out the problem.

            -Thanks,
            James.

            • 3. Re: No Persistence provider for EntityManager
              James Hannoy Newbie

              Modified the code little bit... and now getting the following exception:

              E:\E_WSPACE_EURO\StateMonitor>ant run.client
              Buildfile: build.xml
              
              prepare:
              
              compile:
              
              ejbjar:
              
              run.client:
               [java] Created Class...
               [java] MonitorRemote Sateless...
               [java] java.lang.RuntimeException: Non matching type for inject of field: p
              rotected javax.persistence.EntityManager session.MonitorBean.em for type: org.
              jboss.ejb3.entity.InjectedEntityManagerFactory of jndiName env/session.Monitor
              Bean/em
               [java] intfs: , javax.persistence.EntityManagerFactory, java.io.Externaliza
              ble
               [java] at org.jboss.injection.JndiFieldInjector.inject(JndiFieldInjecto
              r.java:128)
               [java] at org.jboss.injection.JndiFieldInjector.inject(JndiFieldInjecto
              r.java:106)
               [java] at org.jboss.injection.JndiFieldInjector.inject(JndiFieldInjecto
              r.java:63)
               [java] at org.jboss.ejb3.AbstractPool.create(AbstractPool.java:111)
               [java] at org.jboss.ejb3.InfinitePool.get(InfinitePool.java:49)
               [java] at org.jboss.ejb3.ThreadlocalPool.create(ThreadlocalPool.java:50
              )
               [java] at org.jboss.ejb3.ThreadlocalPool.get(ThreadlocalPool.java:90)
               [java] at org.jboss.ejb3.stateless.StatelessInstanceInterceptor.invoke(
              StatelessInstanceInterceptor.java:54)
               [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInv
              ocation.java:101)
               [java] at org.jboss.aspects.security.AuthenticationInterceptor.invoke(A
              uthenticationInterceptor.java:77)
               [java] at org.jboss.ejb3.security.Ejb3AuthenticationInterceptor.invoke(
              Ejb3AuthenticationInterceptor.java:110)
               [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInv
              ocation.java:101)
               [java] at org.jboss.ejb3.ENCPropagationInterceptor.invoke(ENCPropagatio
              nInterceptor.java:46)
               [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInv
              ocation.java:101)
               [java] at org.jboss.ejb3.asynchronous.AsynchronousInterceptor.invoke(As
              ynchronousInterceptor.java:106)
               [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInv
              ocation.java:101)
               [java] at org.jboss.ejb3.stateless.StatelessContainer.dynamicInvoke(Sta
              telessContainer.java:304)
               [java] at org.jboss.aop.Dispatcher.invoke(Dispatcher.java:106)
               [java] at org.jboss.aspects.remoting.AOPRemotingInvocationHandler.invok
              e(AOPRemotingInvocationHandler.java:82)
               [java] at org.jboss.remoting.ServerInvoker.invoke(ServerInvoker.java:76
              9)
               [java] at org.jboss.remoting.transport.socket.ServerThread.processInvoc
              ation(ServerThread.java:573)
               [java] at org.jboss.remoting.transport.socket.ServerThread.dorun(Server
              Thread.java:373)
               [java] at org.jboss.remoting.transport.socket.ServerThread.run(ServerTh
              read.java:166)
               [java] Caused by: java.lang.IllegalArgumentException
               [java] at sun.reflect.UnsafeObjectFieldAccessorImpl.set(UnsafeObjectFie
              ldAccessorImpl.java:63)
               [java] at java.lang.reflect.Field.set(Field.java:656)
               [java] at org.jboss.injection.JndiFieldInjector.inject(JndiFieldInjecto
              r.java:116)
               [java] at org.jboss.injection.JndiFieldInjector.inject(JndiFieldInjecto
              r.java:106)
               [java] at org.jboss.injection.JndiFieldInjector.inject(JndiFieldInjecto
              r.java:63)
               [java] at org.jboss.ejb3.AbstractPool.create(AbstractPool.java:111)
               [java] at org.jboss.ejb3.InfinitePool.get(InfinitePool.java:49)
               [java] at org.jboss.ejb3.ThreadlocalPool.create(ThreadlocalPool.java:50
              )
               [java] at org.jboss.ejb3.ThreadlocalPool.get(ThreadlocalPool.java:90)
               [java] at org.jboss.ejb3.stateless.StatelessInstanceInterceptor.invoke(
              StatelessInstanceInterceptor.java:54)
               [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInv
              ocation.java:101)
               [java] at org.jboss.aspects.security.AuthenticationInterceptor.invoke(A
              uthenticationInterceptor.java:77)
               [java] at org.jboss.ejb3.security.Ejb3AuthenticationInterceptor.invoke(
              Ejb3AuthenticationInterceptor.java:110)
               [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInv
              ocation.java:101)
               [java] at org.jboss.ejb3.ENCPropagationInterceptor.invoke(ENCPropagatio
              nInterceptor.java:46)
               [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInv
              ocation.java:101)
               [java] at org.jboss.ejb3.asynchronous.AsynchronousInterceptor.invoke(As
              ynchronousInterceptor.java:106)
               [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInv
              ocation.java:101)
               [java] at org.jboss.ejb3.stateless.StatelessContainer.dynamicInvoke(Sta
              telessContainer.java:304)
               [java] at org.jboss.aop.Dispatcher.invoke(Dispatcher.java:106)
               [java] at org.jboss.aspects.remoting.AOPRemotingInvocationHandler.invok
              e(AOPRemotingInvocationHandler.java:82)
               [java] at org.jboss.remoting.ServerInvoker.invoke(ServerInvoker.java:76
              9)
               [java] at org.jboss.remoting.transport.socket.ServerThread.processInvoc
              ation(ServerThread.java:573)
               [java] at org.jboss.remoting.transport.socket.ServerThread.dorun(Server
              Thread.java:373)
               [java] at org.jboss.remoting.transport.socket.ServerThread.run(ServerTh
              read.java:166)
               [java] at org.jboss.remoting.MicroRemoteClientInvoker.invoke(MicroRemot
              eClientInvoker.java:163)
               [java] at org.jboss.remoting.Client.invoke(Client.java:1634)
               [java] at org.jboss.remoting.Client.invoke(Client.java:548)
               [java] at org.jboss.aspects.remoting.InvokeRemoteInterceptor.invoke(Inv
              okeRemoteInterceptor.java:62)
               [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInv
              ocation.java:101)
               [java] at org.jboss.aspects.tx.ClientTxPropagationInterceptor.invoke(Cl
              ientTxPropagationInterceptor.java:67)
               [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInv
              ocation.java:101)
               [java] at org.jboss.aspects.security.SecurityClientInterceptor.invoke(S
              ecurityClientInterceptor.java:53)
               [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInv
              ocation.java:101)
               [java] at org.jboss.ejb3.remoting.IsLocalInterceptor.invoke(IsLocalInte
              rceptor.java:74)
               [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInv
              ocation.java:101)
               [java] at org.jboss.ejb3.stateless.StatelessRemoteProxy.invoke(Stateles
              sRemoteProxy.java:107)
               [java] at $Proxy0.create(Unknown Source)
               [java] at testcases.TestClient.runTest(TestClient.java:46)
               [java] at testcases.TestClient.main(TestClient.java:78)
               [java] at org.jboss.aspects.remoting.InvokeRemoteInterceptor.invoke(Inv
              okeRemoteInterceptor.java:74)
               [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInv
              ocation.java:101)
               [java] at org.jboss.aspects.tx.ClientTxPropagationInterceptor.invoke(Cl
              ientTxPropagationInterceptor.java:67)
               [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInv
              ocation.java:101)
               [java] at org.jboss.aspects.security.SecurityClientInterceptor.invoke(S
              ecurityClientInterceptor.java:53)
               [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInv
              ocation.java:101)
               [java] at org.jboss.ejb3.remoting.IsLocalInterceptor.invoke(IsLocalInte
              rceptor.java:74)
               [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInv
              ocation.java:101)
               [java] at org.jboss.ejb3.stateless.StatelessRemoteProxy.invoke(Stateles
              sRemoteProxy.java:107)
               [java] at $Proxy0.create(Unknown Source)
               [java] at testcases.TestClient.runTest(TestClient.java:46)
               [java] at testcases.TestClient.main(TestClient.java:78)
              
              BUILD SUCCESSFUL
              Total time: 1 second
              E:\E_WSPACE_EURO\StateMonitor>
              


              :(
              -James


              • 4. Re: No Persistence provider for EntityManager
                James Hannoy Newbie

                I did a lot of google... but in vain. Someone in a similar situation suggested to remove all the final attributes, so did the same, with no luck :(

                Anyone faced similar situation before? Or is it some kind of bug? Any pointers would really be very helpful.

                -Thanks,
                J.

                • 5. Re: No Persistence provider for EntityManager
                  James Hannoy Newbie

                  Hi,

                  I have resolved it.

                  Thanks,
                  James.

                  • 6. Re: No Persistence provider for EntityManager
                    paul lmc Newbie

                    how did you resolved this problem, I have the Same problem, Could you tell me the method,to resovle !!!!! Thanks !!!!


                    paul_lmc