Mon HQL ne marche pas

Bonjour,

Voici mon query, il ne fonctionne pas.
Quelqu'un a-t-il une idée du problème ?

Merci,

query =
"SELECT COUNT(*) FROM " +
"(" +
"SELECT userId " +
"FROM Booking " +
"WHERE tripId = '"+tripIdOutward+"' " +
"AND status LIKE 'Active' " +
"AND userId IN (" +
"SELECT userId " +
"FROM Booking " +
"WHERE tripId = '"+tripIdReturn+"' " +
"AND status = 'Active' " +
")" +
")";
results = session.find(query);

[25/07/07 11:11:27:880 CEST] 5f1d4c26 SystemErr R net.sf.hibernate.QueryException: in expected: SELECT [SELECT COUNT(*) FROM (SELECT USERID FROM TB_ATB_BOOKING WHERE TRIPID='449' AND STATUS = 'Active' AND USERID IN (SELECT USERID FROM TB_ATB_BOOKING WHERE TRIPID = '451' AND STATUS = 'Active' ))]
at net.sf.hibernate.hql.FromParser.token(FromParser.java:102)
at net.sf.hibernate.hql.ClauseParser.token(ClauseParser.java:87)
at net.sf.hibernate.hql.PreprocessingParser.token(PreprocessingParser.java:123)
at net.sf.hibernate.hql.ParserHelper.parse(ParserHelper.java:29)
at net.sf.hibernate.hql.QueryTranslator.compile(QueryTranslator.java:149)
at net.sf.hibernate.hql.QueryTranslator.compile(QueryTranslator.java:138)
at net.sf.hibernate.impl.SessionFactoryImpl.getQuery(SessionFactoryImpl.java:293)
at net.sf.hibernate.impl.SessionImpl.getQueries(SessionImpl.java:1554)
at net.sf.hibernate.impl.SessionImpl.find(SessionImpl.java:1525)
at net.sf.hibernate.impl.SessionImpl.find(SessionImpl.java:1513)
at net.sf.hibernate.impl.SessionImpl.find(SessionImpl.java:1505)