Need help with Hibernate? Read this first:how to run hbm2ddl in hibernate for generating database scema

i got the exception exception in main tread
java -cp classpath net.sf.hibernate.tool.hbm2ddl.SchemaExport
options mapping_files]
using this command i got this exception i am using hibernate 3.o version
i set all classpaths
can any body help me its urgent

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Hibernate version:

Mapping documents:

Code between sessionFactory.openSession() and session.close():

Full stack trace of any exception that occurs:

Name and version of the database you are using:

The generated SQL (show_sql=true):

Debug level Hibernate log excerpt: