java.lang.ExceptionInInitializerError

[Vaishali Paramane]

Hi
I am writing first Hibernate program in eclipse using Hibernate4, oracle11g

I added following jar files in class path

antlr-2.7.7.jar
dom4j-1.6.1.jar
hibernate-commons-annotations-4.0.1.Final.jar
hibernate-core-4.1.5.Final.jar
hibernate-jpa-2.0-api-1.0.1.Final.jar
javassist-3.15.0-GA.jar
jboss-logging-3.1.0.GA.jar
jboss-transaction-api_1.1_spec-1.0.0.Final.jar
hibernate-entitymanager-4.1.5.Final.jar
hibernate-envers-4.1.5.Final.jar
hibernate-3.2.0.cr2.jar

and Hibernate.cfg.xml file

<!-- Database connection settings -->
		 <property name="connection.driver_class">oracle.jdbc.driver.Oracle1Driver</property> 
		 <property name="connection.url">jdbc:oracle:thin:@localhost:1521:orcl</property> 
		 <property name="connection.username">system</property>
		 <property name="connection.password"> admin</property>
		 <!-- <property name=”hibernate.default_schema”>YOURSCHEMA</property> -->
		<!-- JDBC connection pool (use the built-in) -->
		 <property name="connection.pool_size">1</property> 
		 
		<!-- SQL dialect -->
		 <property name="dialect"> org.hibernate.dialect.Oracle10gDialect </property> 
		
		 
		<!-- Echo all executed SQL to stdout -->
		 <property name="show_sql">true</property> 
		 <property name="hbm2ddl.auto">create</property>
		 
		 <mapping resource="org.hibernate.dto.UserDetails"/>

I am getting error when I am creating configuration file

Configuration configuration= new Configuration();

Can anyone help me?

Thanks

Vaishali