org.hibernate.MappingException in Composite PK also Overlapp

[prabhumadanagopal]

@IdClass(com.x.ejb.entity.impl.UserGroupKey.class)
@Entity
public class UserGroup {
...

@Id
@Column(name="GROUPID",
insertable=false, updatable=false)
public String getGroupId() {
return groupId;
}
...
@Id
@Column(name="USERID",
insertable=false, updatable=false)
public String getUserId() {
return userId;
}
...
@EmbeddedId
public UserGroupKey getPrimaryKey() {
return primaryKey;
}


And UserGroupKey is Embeddable

On deploying I get
org.hibernate.MappingException: Repeated column in mapping for entity: com.x.ejb.entity.impl.UserGroup column: groupId (
should be mapped with insert="false" update="false")

[prabhumadanagopal]

Posting again as the code was not visible in the previous post
Code starts--here--
@IdClass(com.x.ejb.entity.impl.UserGroupKey.class)
@Entity
public class UserGroup {
...

@Id
@Column(name="GROUPID",
insertable=false, updatable=false)
public String getGroupId() {
return groupId;
}
...
@Id
@Column(name="USERID",
insertable=false, updatable=false)
public String getUserId() {
return userId;
}
...
@EmbeddedId
public UserGroupKey getPrimaryKey() {
return primaryKey;
}
Code ends--here--

And UserGroupKey is Embeddable

On deploying I get
org.hibernate.MappingException: Repeated column in mapping for entity: com.x.ejb.entity.impl.UserGroup column: groupId (
should be mapped with insert="false" update="false")