OpenJPA is firing separate query for embedded class in the entity

Question

Hello experts,
I have an Embedded class in my entity which has some common similar columns for all the tables.
e.g
@Entity
@Table(name = "MY_TABLE")
public class MyTable implements Serializable {
     //... some specific fields here
     @Embedded     
     @EagerFetchMode(FetchMode.JOIN)
     private CommonRowDetails commonRowDetails;
     //...getters and setter below
And the class CommonRowDetails contains some audit columns as
@Embeddable
public class CommonRowDetails implements Serializable {
     @Column(name = "ROW_ADD_STP", updatable = false)
     private Date rowAddStp;
     @Column(name = "ROW_ADD_USER_ID", updatable = false)
     private String rowAddUserId;
     @Column(name = "ROW_UPDATE_USER_ID")
     private String rowUpdateUserId;
     @Column(name = "ROW_UPDATE_STP")
     private Date rowUpdateStp;
     //...getters and setter below
All above columns are part of same table "MY_TABLE"
So when I select the entity MyTable, I can see a separate query is getting executed for selecting (ROW_ADD_STP, ROW_ADD_USER_ID, ...) which is definitely not required. I also added the annotation @EagerFetchMode(FetchMode.JOIN) on field CommonRowDetails to select those with join/in same query.
Please help me to know, how to avoid OpenJPA firing a separate query.
ENV details
DATABASE
databaseProductName: DB2/LINUXX8664
databaseProductVersion: SQL09075
driverName: IBM DB2 JDBC Universal Driver Architecture
driverVersion: 3.58.81
OS-SERVER
WebSphere Platform 8.0.0.2 [BASE 8.0.0.2 cf021148.03]
Host Operating System is Windows XP, version 5.1
Java version = 1.6.0, Java Compiler = j9jit26, Java VM name = IBM J9 VM
OPENJPA- 2.1.2

Answer 1

Hello Forum,
got a response in the SAP forum - Issue is a bug in the SAP NetWeaver
app. server.
Henning Malzahn