Error with my first application (Hibernate Documentation)

Elmilouse · **Joined:** Tue Apr 11, 2006 3:14 am **Posts:** 3

I followed exactly the tutoriel being in the documentation of hibernate (the example with the Events).

And when I want to launch the first method which records a first Event, I have this error which I do not understand:

Code:

run:
     [java] Initial SessionFactory creation failed.java.lang.ExceptionInInitiali
zerError
     [java] Exception in thread "main" java.lang.ExceptionInInitializerError
     [java]     at util.HibernateUtil.<clinit>(Unknown Source)
     [java]     at events.EventManager.createAndStoreEvent(Unknown Source)
     [java]     at events.EventManager.main(Unknown Source)
     [java] Caused by: java.lang.ExceptionInInitializerError
     [java]     ... 3 more
     [java] Caused by: org.apache.commons.logging.LogConfigurationException: org
.apache.commons.logging.LogConfigurationException: No suitable Log constructor [
Ljava.lang.Class;@530daa for org.apache.commons.logging.impl.Log4JLogger (Caused
 by java.lang.NoClassDefFoundError: org/apache/log4j/Category) (Caused by org.ap
ache.commons.logging.LogConfigurationException: No suitable Log constructor [Lja
va.lang.Class;@530daa for org.apache.commons.logging.impl.Log4JLogger (Caused by
 java.lang.NoClassDefFoundError: org/apache/log4j/Category))
     [java]     at org.apache.commons.logging.impl.LogFactoryImpl.newInstance(Lo
gFactoryImpl.java:543)
     [java]     at org.apache.commons.logging.impl.LogFactoryImpl.getInstance(Lo
gFactoryImpl.java:235)
     [java]     at org.apache.commons.logging.impl.LogFactoryImpl.getInstance(Lo
gFactoryImpl.java:209)
     [java]     at org.apache.commons.logging.LogFactory.getLog(LogFactory.java:
351)
     [java]     at org.hibernate.cfg.Configuration.<clinit>(Configuration.java:1
16)
     [java]     ... 3 more
     [java] Caused by: org.apache.commons.logging.LogConfigurationException: No
suitable Log constructor [Ljava.lang.Class;@530daa for org.apache.commons.loggin
g.impl.Log4JLogger (Caused by java.lang.NoClassDefFoundError: org/apache/log4j/C
ategory)
     [java]     at org.apache.commons.logging.impl.LogFactoryImpl.getLogConstruc
tor(LogFactoryImpl.java:413)
     [java]     at org.apache.commons.logging.impl.LogFactoryImpl.newInstance(Lo
gFactoryImpl.java:529)
     [java]     ... 7 more
     [java] Caused by: java.lang.NoClassDefFoundError: org/apache/log4j/Category

     [java]     at java.lang.Class.getDeclaredConstructors0(Native Method)
     [java]     at java.lang.Class.privateGetDeclaredConstructors(Class.java:232
8)
     [java]     at java.lang.Class.getConstructor0(Class.java:2640)
     [java]     at java.lang.Class.getConstructor(Class.java:1629)
     [java]     at org.apache.commons.logging.impl.LogFactoryImpl.getLogConstruc
tor(LogFactoryImpl.java:410)
     [java]     ... 8 more
     [java] Java Result: 1 

I understand nothing there; I think that it is a problem with the library commons-logging but I do not see how finding the solution.
could you help me please?

steckemetz · **Posted:** Tue Apr 11, 2006 9:55 am

Quote:

[java] Caused by: java.lang.NoClassDefFoundError: org/apache/log4j/Category

This look like the log4j jar is missing in your classpath !

Elmilouse · **Joined:** Tue Apr 11, 2006 3:14 am **Posts:** 3

thank you I added it and it's ok. but I thought that while putting it in the file lib of my application , that would go too.