Hibernate Annotations Problem, Hibernate Hibernateannotations Hibernate Annotations Tutorial

Hi, i was follow your tutorial and download your code. I can compile, create schema based from your code. But, when i run your code, i've got problem at HibernateUtil.java :
sessionFactory = new AnnotationConfiguration().configure().buildSessionFactory();

Error like this :
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Exception in thread "Main Thread" java.lang.ExceptionInInitializerError
at com.HibernateUtil.<clinit>(HibernateUtil.java:11)
at com.Example1.main(Example1.java:14)
Caused by: org.apache.commons.logging.LogConfigurationException: org.apache.commons.logging.LogConfigurationException: java.lang.NullPointerException (Caused by java.lang.NullPointerException) (Caused by org.apache.commons.logging.LogConfigurationException: java.lang.NullPointerException (Caused by java.lang.NullPointerException))
at org.apache.commons.logging.impl.LogFactoryImpl.newInstance(LogFactoryImpl.java:543)
at org.apache.commons.logging.impl.LogFactoryImpl.getInstance(LogFactoryImpl.java:235)
at org.apache.commons.logging.impl.LogFactoryImpl.getInstance(LogFactoryImpl.java:209)
at org.apache.commons.logging.LogFactory.getLog(LogFactory.java:351)
at org.hibernate.cfg.Configuration.<clinit>(Configuration.java:120)
... 2 more
Caused by: org.apache.commons.logging.LogConfigurationException: java.lang.NullPointerException (Caused by java.lang.NullPointerException)
at org.apache.commons.logging.impl.LogFactoryImpl.getLogConstructor(LogFactoryImpl.java:397)
at org.apache.commons.logging.impl.LogFactoryImpl.newInstance(LogFactoryImpl.java:529)
... 6 more
Caused by: java.lang.NullPointerException
at org.apache.commons.logging.impl.LogFactoryImpl.getLogConstructor(LogFactoryImpl.java:374)
... 7 more
-------------------------------------------------

Can you help me to solve this problem ?

Thanks,
Hendra

Posted by Hendra on Saturday, 01.5.08 @ 12:32pm | #44557