java.lang.NullPointerException

hibernate.org | 4 months ago
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    EJB3:->Connection error occured (Unable to access entity from client)

    Oracle Community | 9 years ago | 843830
    org.hibernate.exception.GenericJDBCException: could not load an entity: [com.dboys.ejb.entity.TblLogin#2]

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    Root Cause Analysis

    1. java.lang.NullPointerException

      No message provided

      at org.jboss.mx.loading.RepositoryClassLoader.findClass()
    2. JBoss Application Server J2SE
      RepositoryClassLoader.findClass
      1. org.jboss.mx.loading.RepositoryClassLoader.findClass(RepositoryClassLoader.java:620)
      1 frame
    3. Java RT
      ClassLoader.loadClass
      1. java.lang.ClassLoader.loadClass(ClassLoader.java:289)
      1 frame
    4. JBoss Application Server J2SE
      RepositoryClassLoader.loadClass
      1. org.jboss.mx.loading.RepositoryClassLoader.loadClassImpl(RepositoryClassLoader.java:464)
      2. org.jboss.mx.loading.RepositoryClassLoader.loadClass(RepositoryClassLoader.java:405)
      2 frames
    5. Java RT
      ClassLoader.loadClassInternal
      1. java.lang.ClassLoader.loadClass(ClassLoader.java:235)
      2. java.lang.ClassLoader.loadClassInternal(ClassLoader.java:302)
      2 frames
    6. MySQL jdbc
      Connection.prepareStatement
      1. com.mysql.jdbc.PreparedStatement.<init>(PreparedStatement.java:147)
      2. com.mysql.jdbc.Connection.prepareStatement(Connection.java:1283)
      2 frames
    7. JBoss Application Server Connector
      WrappedConnection.prepareStatement
      1. org.jboss.resource.adapter.jdbc.BaseWrapperManagedConnection.doPrepareStatement(BaseWrapperManagedConnection.java:349)
      2. org.jboss.resource.adapter.jdbc.BaseWrapperManagedConnection.prepareStatement(BaseWrapperManagedConnection.java:344)
      3. org.jboss.resource.adapter.jdbc.WrappedConnection.prepareStatement(WrappedConnection.java:187)
      3 frames
    8. Hibernate
      QueryLoader.list
      1. org.hibernate.jdbc.AbstractBatcher.getPreparedStatement(AbstractBatcher.java:497)
      2. org.hibernate.jdbc.AbstractBatcher.getPreparedStatement(AbstractBatcher.java:415)
      3. org.hibernate.jdbc.AbstractBatcher.prepareQueryStatement(AbstractBatcher.java:139)
      4. org.hibernate.loader.Loader.prepareQueryStatement(Loader.java:1561)
      5. org.hibernate.loader.Loader.doQuery(Loader.java:661)
      6. org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:224)
      7. org.hibernate.loader.Loader.doList(Loader.java:2145)
      8. org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2029)
      9. org.hibernate.loader.Loader.list(Loader.java:2024)
      10. org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:392)
      10 frames
    9. Hibernate HQL/JP-QL Parser
      QueryTranslatorImpl.list
      1. org.hibernate.hql.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:333)
      1 frame
    10. Hibernate
      QueryImpl.list
      1. org.hibernate.engine.query.HQLQueryPlan.performList(HQLQueryPlan.java:172)
      2. org.hibernate.impl.SessionImpl.list(SessionImpl.java:1114)
      3. org.hibernate.impl.QueryImpl.list(QueryImpl.java:79)
      3 frames