Java - AYUDA. qué significa el siguiente msg de hibernate

14-ene-2008 23:55:29 org.hibernate.util.DTDEntityResolver resolveEntity
GRAVE: Don't use old DTDs, read the Hibernate 3.x Migration Guide!
14-ene-2008 23:55:33 org.hibernate.cfg.HbmBinder bindRootPersistentClassCommonValues
INFO: Mapping class: datos.Categoria -> CATEGORIAS
14-ene-2008 23:55:33 org.hibernate.cfg.Configuration doConfigure
INFO: Configured SessionFactory: null


¿Cómo se puede solucionar?

Ta lo solucioné. Simplemente tenía un hdb.xml con la versión del dtd a 2.0 en vez de 3.0. El problema que tengo ahora es el siguiente:

init:
deps-jar:
Compiling 1 source file to /home/santi/NetBeansProjects/persistencia/build/classes
compile:
15-ene-2008 0:30:30 org.hibernate.cfg.Environment <clinit>
INFO: Hibernate 3.2.5
15-ene-2008 0:30:30 org.hibernate.cfg.Environment <clinit>
INFO: hibernate.properties not found
15-ene-2008 0:30:30 org.hibernate.cfg.Environment buildBytecodeProvider
INFO: Bytecode provider name : cglib
15-ene-2008 0:30:30 org.hibernate.cfg.Environment <clinit>
INFO: using JDK 1.4 java.sql.Timestamp handling
15-ene-2008 0:30:30 org.hibernate.cfg.Configuration configure
INFO: configuring from resource: /hibernate.cfg.xml
15-ene-2008 0:30:30 org.hibernate.cfg.Configuration getConfigurationInputStream
INFO: Configuration resource: /hibernate.cfg.xml
15-ene-2008 0:30:31 org.hibernate.cfg.Configuration addResource
INFO: Reading mappings from resource : datos/Categoria.hbm.xml
15-ene-2008 0:30:31 org.hibernate.cfg.HbmBinder bindRootPersistentClassCommonValues
INFO: Mapping class: datos.Categoria -> CATEGORIAS
15-ene-2008 0:30:31 org.hibernate.cfg.Configuration doConfigure
INFO: Configured SessionFactory: null

COnseguiste solucionar este error?
31-mar-2008 16:16:24 org.hibernate.cfg.annotations.Version <clinit>
INFO: Hibernate Annotations 3.3.1.GA
31-mar-2008 16:16:24 org.hibernate.cfg.Environment <clinit>
INFO: Hibernate 3.2.6
31-mar-2008 16:16:24 org.hibernate.cfg.Environment <clinit>
INFO: hibernate.properties not found
31-mar-2008 16:16:24 org.hibernate.cfg.Environment buildBytecodeProvider
INFO: Bytecode provider name : cglib
31-mar-2008 16:16:24 org.hibernate.cfg.Environment <clinit>
INFO: using JDK 1.4 java.sql.Timestamp handling
31-mar-2008 16:16:24 org.hibernate.ejb.Version <clinit>
INFO: Hibernate EntityManager 3.3.2.GA