Erro - Hibernate

<mapping resource="./br/com/sie/actions/Cat.hbm.xml"/>

<mapping resource="Artista.hbm.xml"/>

(cfg.Environment                     483 ) Hibernate 2.1.8
(cfg.Environment                     517 ) loaded properties from resource hibernate.properties: {hibernate.connection.driver_class=org.firebirdsql.jdbc.FBDriver, 
hibernate.cglib.use_reflection_optimizer=true, hibernate.cache.provider_class=net.sf.hibernate.cache.EhCacheProvider, 
hibernate.cache.use_query_cache=true, hibernate.max_fetch_depth=1, 
hibernate.dialect=net.sf.hibernate.dialect.InterbaseDialect, 
hibernate.jdbc.use_streams_for_binary=true, hibernate.jdbc.batch_size=0,
hibernate.query.substitutions=true 1, false 0, yes 'Y', no 'N', 
hibernate.proxool.pool_alias=pool1, hibernate.connection.username=SYSDBA, 
hibernate.cache.region_prefix=hibernate.test, hibernate.connection.url=jdbc:firebirdsql://localhost/C:/Arquivos de programas/IBOConsole/MUNDOJAVA, 
hibernate.connection.password=masterkey, 
hibernate.jdbc.batch_versioned_data=true, hibernate.connection.pool_size=1}
(cfg.Environment                     542 ) using java.io streams to persist binary types
(cfg.Environment                     543 ) using CGLIB reflection optimizer
(cfg.Environment                     572 ) using JDK 1.4 java.sql.Timestamp handling
(cfg.Configuration                   909 ) configuring from resource: /hibernate.cfg.xml
(cfg.Configuration                   881 ) Configuration resource: /hibernate.cfg.xml
(cfg.Configuration                   332 ) Mapping resource: ./hbm/Artista.hbm.xml


(cfg.Binder                          229 ) Mapping class: br.com.mundojava.hibernate.modelo.Artista -> artista
(cfg.Configuration                   332 ) Mapping resource: ./hbm/Capa.hbm.xml
(cfg.Binder                          229 ) Mapping class: br.com.mundojava.hibernate.modelo.Capa -> capa
(cfg.Configuration                   332 ) Mapping resource: ./hbm/Musica.hbm.xml
(cfg.Binder                          229 ) Mapping class: br.com.mundojava.hibernate.modelo.Musica -> musica
(cfg.Configuration                   332 ) Mapping resource: ./hbm/Cd.hbm.xml
(cfg.Binder                          229 ) Mapping class: br.com.mundojava.hibernate.modelo.Cd -> cd
(cfg.Configuration                   1067) Configured SessionFactory: null
(cfg.Configuration                   641 ) processing one-to-many association mappings
(cfg.Binder                          1181) Mapping collection: br.com.mundojava.hibernate.modelo.Artista.cds -> cd
(cfg.Binder                          1181) Mapping collection: br.com.mundojava.hibernate.modelo.Cd.musicas -> musica
(cfg.Configuration                   650 ) processing one-to-one association property references
(cfg.Configuration                   675 ) processing foreign key constraints
(dialect.Dialect                     86  ) Using dialect: net.sf.hibernate.dialect.FirebirdDialect
(cfg.SettingsFactory                 70  ) Maximim outer join fetch depth: 1
(cfg.SettingsFactory                 74  ) Use outer join fetching: true
(connection.DriverManagerConnectionProvider 42  ) Using Hibernate built-in connection pool (not for production use!)
(connection.DriverManagerConnectionProvider 43  ) Hibernate connection pool size: 1
(connection.DriverManagerConnectionProvider 77  ) using driver: org.firebirdsql.jdbc.FBDriver at URL: 
jdbc:firebirdsql:localhost/3050:C:/Arquivos de programas/IBOConsole/MUNDOJAVA?autoReconnect=true
(connection.DriverManagerConnectionProvider 78  ) connection properties: {user=GESTOR, password=msolutec}
(transaction.TransactionManagerLookupFactory 33  ) No TransactionManagerLookup configured (in JTA environment, use of process level read-write cache is not recommended)
(cfg.SettingsFactory                 114 ) Use scrollable result sets: true
(cfg.SettingsFactory                 117 ) Use JDBC3 getGeneratedKeys(): false
(cfg.SettingsFactory                 120 ) Optimize cache for minimal puts: false
(cfg.SettingsFactory                 126 ) echoing all SQL to stdout
(cfg.SettingsFactory                 129 ) Query language substitutions: {no='N', true=1, yes='Y', false=0}
(cfg.SettingsFactory                 140 ) cache provider: net.sf.hibernate.cache.EhCacheProvider
(cfg.SettingsFactory                 152 ) query cache factory: net.sf.hibernate.cache.StandardQueryCacheFactory
(cfg.Configuration                   1130) instantiating and configuring caches
(config.Configurator                 123 ) No configuration found. Configuring ehcache from ehcache-failsafe.xml found in the classpath: 
jar:file:/C:/Documents%20and%20Settings/RodrigoR/Meus%20documentos/Hibernate/WEB-INF/lib/ehcache-0.7.jar!/ehcache-failsafe.xml

(impl.SessionFactoryImpl             119 ) building session factory
net.sf.hibernate.PropertyNotFoundException: Could not find a setter for property imagem in class br.com.mundojava.hibernate.modelo.Capa
        at net.sf.hibernate.property.BasicPropertyAccessor.getSetter(BasicPropertyAccessor.java:131)
        at net.sf.hibernate.mapping.Property.getSetter(Property.java:178)
        at net.sf.hibernate.persister.AbstractEntityPersister.<init>(AbstractEntityPersister.java:750)
        at net.sf.hibernate.persister.EntityPersister.<init>(EntityPersister.java:690)
        at net.sf.hibernate.persister.PersisterFactory.createClassPersister(PersisterFactory.java:42)
        at net.sf.hibernate.impl.SessionFactoryImpl.<init>(SessionFactoryImpl.java:137)
        at net.sf.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:805)
        at br.com.mundojava.hibernate.main.Main.main(Main.java:28)

Could not find a setter for property imagem in class br.com.mundojava.hibernate.modelo.Capa

xception in thread “main” java.lang.NoClassDefFoundError: org/slf4j/LoggerFactory

at org.hibernate.cfg.annotations.Version.(Version.java:12)

at org.hibernate.cfg.AnnotationConfiguration.(AnnotationConfiguration.java:68)

at valer.Listagem12.main(Listagem12.java:19)

Caused by: java.lang.ClassNotFoundException: org.slf4j.LoggerFactory

at java.net.URLClassLoader$1.run(URLClassLoader.java:220)

at java.net.URLClassLoader$1.run(URLClassLoader.java:209)

at java.security.AccessController.doPrivileged(Native Method)

at java.net.URLClassLoader.findClass(URLClassLoader.java:208)

at java.lang.ClassLoader.loadClass(ClassLoader.java:325)

at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:294)

at java.lang.ClassLoader.loadClass(ClassLoader.java:270)

at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:338)

… 3 more

Java Result: 1