Problem with sql TRIM in PL/SQL package in version 10.1.3.3

Question

I'm getting invalid token on the trim functions in the following function. The package compiles ok in TOAD, and this package worked fine in the previous version of jdeveloper I was using--10.1.3
FUNCTION stu_pidm (
p_profile_name IN VARCHAR2
RETURN NUMBER
IS
v_pidm NUMBER;
BEGIN
BEGIN
SELECT s.szbstdn_pidm
INTO v_pidm
FROM szbstdn s
WHERE trim(s.szbstdn_profile_name) = trim(p_profile_name);
EXCEPTION
WHEN OTHERS THEN
RETURN NULL;
END;
RETURN v_pidm;
END;

Answer 1

Sorry for confusion, version of OC4J does not really meter, but jdk does. It happened that in the case where everything OK (OC4J 10.1.3.1.0) I accidentally used jdk 1.5. Now I tried both (OC4J 10.1.3.1.0 and OC4J 10.1.3.2.0) with j2sdk1.4.2_14 (besides I tried j2sdk1.4.2_09 and _08) and j2sdk1.5.0_06.
With JDK 1.5 everything is OK and with JDK 1.4 we have a problem, described in the previous posting. I believe now I should reformulate my initial question:
Is it possible to configure OC4J 10.1.3 running under j2sdk1.4.2_14 to force Thread Context ClassLoader to behave similar to OC4J 10.1.3 under j2sdk1.5.0_06? If yes, how we could do it?
Thanks