WS 3.2, Kodo 4, JPA mapping of CLOB

Question

The problem that I have is related to JPA CLOB mapping. Underlying oracle table has a CLOB field. DbXplorer correctly recognize the type of the column as CLOB but when I generate JPA mapping for the table, the CLOB column is mapped to Object without @Lob annotation.
<i>
private Object payload;
@Basic()
@Column(name="PAYLOAD", length=4000)
public Object getPayload() {
return this.payload;
public void setPayload(Object payload) {
this.payload = payload;
</i>
Such a class is compiled but not ENHANCED (I opened .class file in editor and it did not implemented kodo.enhance.PeristenceCapable). No errors at all. When I manually added @Lob() annotation and changed Object to String, it was enhanced, but when I read the data, CLOB field was ‘null’ and the rest of columns populated with correct data. I updated such an object with a new data and it was written to database. The next read was the same – gived me a ‘null’ value for CLOB field.
Am I missing something? Please help.

Answer 1

Download the latest 10g oracle jdbc driver (supports 9.2 database), mapping still DOES NOT work (doesn't generate @Lob annotation but java.sql.Clob object), running is OK.