java.lang.ExceptionInInitializerError

mkyong.com | 7 months ago
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    java.lang.NoClassDefFoundError: com/mchange/v2/c3p0/DataSources
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    java.lang.ClassNotFoundException: Hello.class

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    Root Cause Analysis

    1. java.lang.ClassNotFoundException

      com.mchange.v2.c3p0.DataSources

      at java.net.URLClassLoader$1.run()
    2. Java RT
      ClassLoader.loadClassInternal
      1. java.net.URLClassLoader$1.run(URLClassLoader.java:200)
      2. java.security.AccessController.doPrivileged(Native Method)
      3. java.net.URLClassLoader.findClass(URLClassLoader.java:188)
      4. java.lang.ClassLoader.loadClass(ClassLoader.java:307)
      5. sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
      6. java.lang.ClassLoader.loadClass(ClassLoader.java:252)
      7. java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
      7 frames
    3. Hibernate
      ConnectionProviderFactory.newConnectionProvider
      1. org.hibernate.connection.C3P0ConnectionProvider.configure(C3P0ConnectionProvider.java:154)
      2. org.hibernate.connection.ConnectionProviderFactory.newConnectionProvider(ConnectionProviderFactory.java:124)
      3. org.hibernate.connection.ConnectionProviderFactory.newConnectionProvider(ConnectionProviderFactory.java:56)
      3 frames
    4. Hibernate
      Configuration.buildSessionFactory
      1. org.hibernate.cfg.SettingsFactory.createConnectionProvider(SettingsFactory.java:410)
      2. org.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:62)
      3. org.hibernate.cfg.Configuration.buildSettings(Configuration.java:2009)
      4. org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1292)
      4 frames
    5. com.mkyong.persistence
      HibernateUtil.<clinit>
      1. com.mkyong.persistence.HibernateUtil.buildSessionFactory(HibernateUtil.java:13)
      2. com.mkyong.persistence.HibernateUtil.<clinit>(HibernateUtil.java:8)
      2 frames
    6. com.mkyong.common
      App.main
      1. com.mkyong.common.App.main(App.java:11)
      1 frame