Tomcat5.0 Server Error in Hibernate

hi every,one i am using hibernate and oracle 8i as backend,while am trying to access it from Tomcat5.0 and below is the server error iam getting can any one help me?

Feb 10, 2007 1:38:53 PM org.hibernate.cfg.Environment
INFO: using java.io streams to persist binary types
Feb 10, 2007 1:38:53 PM org.hibernate.cfg.Environment buildBytecodeProvider
INFO: Bytecode provider name : cglib
Feb 10, 2007 1:38:53 PM org.hibernate.cfg.Environment
INFO: using JDK 1.4 java.sql.Timestamp handling
Feb 10, 2007 1:38:53 PM org.hibernate.cfg.Configuration configure
INFO: configuring from resource: /hibernate.cfg.xml
Feb 10, 2007 1:38:53 PM org.hibernate.cfg.Configuration getConfigurationInputStream
INFO: Configuration resource: /hibernate.cfg.xml
Feb 10, 2007 1:38:53 PM org.hibernate.cfg.Configuration addResource
INFO: Reading mappings from resource : Employee.hbm.xml
Feb 10, 2007 1:38:54 PM org.hibernate.cfg.HbmBinder bindRootPersistentClassCommonValues
INFO: Mapping class: EmpBean -> HB_EMP
Feb 10, 2007 1:38:54 PM org.hibernate.cfg.Configuration doConfigure
INFO: Configured SessionFactory: null
Feb 10, 2007 1:38:54 PM org.hibernate.connection.DriverManagerConnectionProvider configure
INFO: Using Hibernate built-in connection pool (not for production use!)
Feb 10, 2007 1:38:54 PM org.hibernate.connection.DriverManagerConnectionProvider configure
INFO: Hibernate connection pool size: 1
Feb 10, 2007 1:38:54 PM org.hibernate.connection.DriverManagerConnectionProvider configure
INFO: autocommit mode: false
Feb 10, 2007 1:38:54 PM org.hibernate.connection.DriverManagerConnectionProvider configure
INFO: using driver: oracle.jdbc.driver.OracleDriver at URL: jdbc:oracle:thin:@localhost:1521:joy
Feb 10, 2007 1:38:54 PM org.hibernate.connection.DriverManagerConnectionProvider configure
INFO: connection properties: {user=scott, password=****, pool.size=10}
Feb 10, 2007 1:38:58 PM org.hibernate.cfg.SettingsFactory buildSettings
INFO: RDBMS: Oracle, version: Oracle8i Enterprise Edition Release 8.1.5.0.0 - Production
With the Partitioning and Java options
PL/SQL Release 8.1.5.0.0 - Production
Feb 10, 2007 1:38:58 PM org.hibernate.cfg.SettingsFactory buildSettings
INFO: JDBC driver: Oracle JDBC driver, version: 9.2.0.1.0
Feb 10, 2007 1:38:58 PM org.hibernate.dialect.Dialect
INFO: Using dialect: org.hibernate.dialect.Oracle9Dialect
Feb 10, 2007 1:38:58 PM org.hibernate.transaction.TransactionFactoryFactory buildTransactionFactory
INFO: Using default transaction strategy (direct JDBC transactions)
Feb 10, 2007 1:38:58 PM org.hibernate.transaction.TransactionManagerLookupFactory getTransactionMana
gerLookup
INFO: No TransactionManagerLookup configured (in JTA environment, use of read-write or transactional
second-level cache is not recommended)
Feb 10, 2007 1:38:58 PM org.hibernate.cfg.SettingsFactory buildSettings
INFO: Automatic flush during beforeCompletion(): disabled
Feb 10, 2007 1:38:58 PM org.hibernate.cfg.SettingsFactory buildSettings
INFO: Automatic session close at end of transaction: disabled
Feb 10, 2007 1:38:58 PM org.hibernate.cfg.SettingsFactory buildSettings
INFO: JDBC batch size: 15
Feb 10, 2007 1:38:58 PM org.hibernate.cfg.SettingsFactory buildSettings
INFO: JDBC batch updates for versioned data: enabled
Feb 10, 2007 1:38:58 PM org.hibernate.cfg.SettingsFactory buildSettings
INFO: Scrollable result sets: enabled
Feb 10, 2007 1:38:58 PM org.hibernate.cfg.SettingsFactory buildSettings
INFO: JDBC3 getGeneratedKeys(): disabled
Feb 10, 2007 1:38:58 PM org.hibernate.cfg.SettingsFactory buildSettings
INFO: Connection release mode: auto
Feb 10, 2007 1:38:58 PM org.hibernate.cfg.SettingsFactory buildSettings
INFO: Maximum outer join fetch depth: 1
Feb 10, 2007 1:38:58 PM org.hibernate.cfg.SettingsFactory buildSettings
INFO: Default batch fetch size: 1
Feb 10, 2007 1:38:58 PM org.hibernate.cfg.SettingsFactory buildSettings
INFO: Generate SQL with comments: disabled
Feb 10, 2007 1:38:58 PM org.hibernate.cfg.SettingsFactory buildSettings
INFO: Order SQL updates by primary key: disabled
Feb 10, 2007 1:38:58 PM org.hibernate.cfg.SettingsFactory createQueryTranslatorFactory
INFO: Query translator: org.hibernate.hql.ast.ASTQueryTranslatorFactory
Feb 10, 2007 1:38:58 PM org.hibernate.hql.ast.ASTQueryTranslatorFactory
INFO: Using ASTQueryTranslatorFactory
Feb 10, 2007 1:38:58 PM org.hibernate.cfg.SettingsFactory buildSettings
INFO: Query language substitutions: {no='N', yes='Y'}
Feb 10, 2007 1:38:58 PM org.hibernate.cfg.SettingsFactory buildSettings
INFO: JPA-QL strict compliance: disabled
Feb 10, 2007 1:38:58 PM org.hibernate.cfg.SettingsFactory buildSettings
INFO: Second-level cache: enabled
Feb 10, 2007 1:38:58 PM org.hibernate.cfg.SettingsFactory buildSettings
INFO: Query cache: disabled
Feb 10, 2007 1:38:58 PM org.hibernate.cfg.SettingsFactory createCacheProvider
INFO: Cache provider: org.hibernate.cache.HashtableCacheProvider
Feb 10, 2007 1:38:58 PM org.hibernate.cfg.SettingsFactory buildSettings
INFO: Optimize cache for minimal puts: disabled
Feb 10, 2007 1:38:58 PM org.hibernate.cfg.SettingsFactory buildSettings
INFO: Cache region prefix: hibernate.test
Feb 10, 2007 1:38:58 PM org.hibernate.cfg.SettingsFactory buildSettings
INFO: Structured second-level cache entries: disabled
Feb 10, 2007 1:38:58 PM org.hibernate.cfg.SettingsFactory buildSettings
INFO: Echoing all SQL to stdout
Feb 10, 2007 1:38:58 PM org.hibernate.cfg.SettingsFactory buildSettings
INFO: Statistics: disabled
Feb 10, 2007 1:38:58 PM org.hibernate.cfg.SettingsFactory buildSettings
INFO: Deleted entity synthetic identifier rollback: disabled
Feb 10, 2007 1:38:58 PM org.hibernate.cfg.SettingsFactory buildSettings
INFO: Default entity-mode: pojo
Feb 10, 2007 1:38:58 PM org.hibernate.cfg.SettingsFactory buildSettings
INFO: Named query checking : enabled
Feb 10, 2007 1:38:58 PM org.hibernate.impl.SessionFactoryImpl
INFO: building session factory