Dear Reader,

I am getting below error when executing an application.
Caused by: com.microsoft.sqlserver.jdbc.SQLServerException: Conversion failed when converting from a character string to uniqueidentifier.

Entity class is shown below.

@Entity
@Table(name = "Student")
@org.hibernate.annotations.Entity(dynamicInsert = true, dynamicUpdate = true)
public class Student {

@Id
@GeneratedValue(strategy=GenerationType.AUTO)
@Column(name = "profileKey", nullable = false)

private int profileKey;

@Column(name = "UserId", columnDefinition="uniqueidentifier")
private String userId; // uniqueidentifier
}
The is created in ms SQL server 2008.

Table Student(
profileKey [INT PK]
userId [uniqueidentifier FK])

Please let me know how to resolve the above exception and dynamicInsert , dynamicUpdate .
Jars used for this application.

hibernate-commons-annotations-4.0.2.Final.jar
hibernate-core-4.2.16.Final.jar
hibernate-jpa-2.0-api-1.0.1.Final.jar

Thanks in Advace.

Thanks,
Purushotham