Hi I am new to this area and I am using hibernate3.2, hibernate-annotation3.2 and hibernate-entitymanager3.2 for persisting a object in the database in a standalone program i.e. plain java, but i am getting the following program when i run.

Please suggest any solution or if i am missing anything: exception is =:

[java] Exception in thread "main" java.lang.IllegalAccessError: tried to access method net.s
f.ehcache.CacheManager.()V from class org.hibernate.cache.EhCacheProvider
[java] at org.hibernate.cache.EhCacheProvider.start(EhCacheProvider.java:124)
[java] at org.hibernate.impl.SessionFactoryImpl.(SessionFactoryImpl.java:180)
[java] at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1213)
[java] at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuratio
n.java:631)
[java] at org.hibernate.ejb.Ejb3Configuration.createEntityManagerFactory(Ejb3Configurati
on.java:760)
[java] at org.hibernate.ejb.Ejb3Configuration.createFactory(Ejb3Configuration.java:151)
[java] at org.hibernate.ejb.Ejb3Configuration.createEntityManagerFactory(Ejb3Configurati
on.java:205)
[java] at org.hibernate.ejb.HibernatePersistence.createEntityManagerFactory(HibernatePer
sistence.java:114)
[java] at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:37)
[java] at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:27)
[java] at com.FirstApp.SSTest.addNS(Unknown Source)
[java] at com.FirstApp.SSTest.main(Unknown Source)
[java] Java Result: 1


Code is some thing like this:
/**
* AB generated by hbm2java
*/
@Entity
@Table(name="ABs"
,schema="Cat"
, uniqueConstraints = { }
)

public class ABs implements java.io.Serializable {
// Fields
private NId id;
private Cdates cdates;
// Constructors
/** default constructor */
public ABs() { }

/** full constructor */
public ABs(NId id, Cdates cdates) {
this.id = id;
this.cdates = cdates; }
// Property accessors
@EmbeddedId
@AttributeOverrides( {
@AttributeOverride(name="A",...))
@AttributeOverride(name="B", ...) ) } )

public NId getId() { return this.id; }

public void setId(NId id) { this.id = id; }
@ManyToOne(cascade={},
fetch=FetchType.LAZY)
@JoinColumn(name="A", unique=false, nullable=false, insertable=false, updatable=false)

......
}

another class
/**
* NId generated by hbm2java
*/
@Embeddable

public class NId implements java.io.Serializable {
// Fields
private String a;
private String b;
// Constructors

/** default constructor */
public NId() {
}

/** full constructor */
public NId(String a, String b) {
this.a = a;
this.b = b;
}

// Property accessors
@Column(name="a", unique=false, nullable=false, insertable=true, updatable=true, length=200)

public String getA() { return this.a; }

public void setA(String a) { this.a = a; }
@Column(name="B", unique=false, nullable=false, insertable=true, updatable=true, length=30)

public String getB() { return this.b; }

public void setB(String b) { this.b = b; }

public boolean equals(Object other){.....}
public int hashCode() {....)
}

and the main class is
public class SSTest {
public static void main(String[] arg)
{
SSTest sstest = new SSTest();
sstest.addNS();
}

public void addNS()
{
EntityManagerFactory emf = Persistence.createEntityManagerFactory("manager1");
NId item = new NId( "111111", "111111" );

ABs ns = new ABs();
ns.setId(item);

EntityManager em = emf.createEntityManager();
em.getTransaction().begin();
em.persist( ns );
em.getTransaction().commit();
}// end of method
}// End of Class