JPQL Parser failed to compile Named query which has JOIN FETCH in Nested queries - jpa-2.0

Question

I am trying to execute the below Named query, but it fails to parse by JPQLParser. The query get parsed If i try to remove the below two bold lines containing JOIN FETCH.
I am using was 8 shipped JPA 2.X
Both the Business Object "applicationItem" and "application" which are JOIN FETCH are marked LAZY FETCH inside business class "AdmissionItem" and "ApplicationItem"
The below query is running absolutely fine in JPA 1.X but fails in JPA 2.X
Named Query
"SELECT DISTINCT request FROM Request request
WHERE request.genId IN
(
SELECT DISTINCT applicationItem.request.genId
FROM ApplicationItem applicationItem
WHERE applicationItem.genId IN
(
SELECT DISTINCT admissionItem.applicationItem.genId
FROM AdmissionItem admissionItem
**JOIN FETCH admissionItem.applicationItem
JOIN FETCH admissionItem.applicationItem.application**
WHERE admissionItem.genId IN
(
// more query
)
AND admissionItem.applicationItem.application.name='SMA'
)
)"
ERROR MESSAGE
org.apache.openjpa.persistence.ArgumentException: "Encountered "request . genId IN ( SELECT DISTINCT applicationItem . request . genId FROM ApplicationItem applicationItem WHERE applicationItem . genId IN ( SELECT DISTINCT admissionItem . applicationItem . genId FROM AdmissionItem admissionItem JOIN FETCH" at character 31, but expected: ["(", ")", "*", "+", ",", "-", ".", "/", ":", "<", "<=", "<>", "=", ">", ">=", "?", "ABS", "ALL", "AND", "ANY", "AS", "ASC", "AVG", "BETWEEN", "BOTH", "BY", "CONCAT", "COUNT", "CURRENT_DATE", "CURRENT_TIME", "CURRENT_TIMESTAMP", "DELETE", "DESC", "DISTINCT", "EMPTY", "ESCAPE", "EXISTS", "FETCH", "FROM", "GROUP", "HAVING", "IN", "INNER", "IS", "JOIN", "LEADING", "LEFT", "LENGTH", "LIKE", "LOCATE", "LOWER", "MAX", "MEMBER", "MIN", "MOD", "NEW", "NOT", "NULL", "OBJECT", "OF", "OR", "ORDER", "OUTER", "SELECT", "SET", "SIZE", "SOME", "SQRT", "SUBSTRING", "SUM", "TRAILING", "TRIM", "TYPE", "UPDATE", "UPPER", "WHERE", , , , , , , , , ]." while parsing JPQL
at org.apache.openjpa.kernel.jpql.JPQLParser.parse(JPQLParser.java:51)