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java.lang.NoClassDefFoundError: javax/persistence/spi/ProviderUtil

From: <glassfish_at_javadesktop.org>
Date: Sun, 29 Nov 2009 22:45:59 PST

hi,
 i am using org.hibernate.ejb.HibernatePersistence as JPA provider, getting some exception as below,

Exception in thread "main" java.lang.NoClassDefFoundError: javax/persistence/spi/ProviderUtil
        at java.lang.Class.getDeclaredConstructors0(Native Method)
        at java.lang.Class.privateGetDeclaredConstructors(Class.java:2389)
        at java.lang.Class.getConstructor0(Class.java:2699)
        at java.lang.Class.newInstance0(Class.java:326)
        at java.lang.Class.newInstance(Class.java:308)
        at javax.persistence.Persistence.findAllProviders(Persistence.java:112)
        at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:79)
        at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:60)
        at SessionFactory.HibernateLogin.main(HibernateLogin.java:131)
Caused by: java.lang.ClassNotFoundException: javax.persistence.spi.ProviderUtil
        at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:303)
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
        at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:316)
        ... 9 more

Can you please help me.

regards
Sandeep Gowda
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