Oracle Database Discussions

This is the info from the trace file.

*** 2003-08-18 08:07:40.590
*** SESSION ID:(560.60728) 2003-08-18 08:07:40.560
DEADLOCK DETECTED
Current SQL statement for this session:
SELECT S.AVAILABLE,GET_AVAIL(S.PRODUCT_ID),S.ON_HAND,S.W_PL,S.PRODUCT_GROUP,S.SIZE_ID,S.COLOR_ID,S.ONEZ,S.COST,IS_IT_KIT(:b1),
NVL(PR.R_AVAIL,0),NVL(PR.R_SOLD,0),NVL(PR.UNIT_OF_MEASURE,'QTY'),NVL(DECODE(PR.AV_CT,0,1,PR.AV_CT),1) FROM ACNTV.SKU S,ACNTV
.PRERED_QUANTITIES PR WHERE S.PRODUCT_ID = PR.PRODUCT_ID (+) AND S.PRODUCT_ID = :b1 FOR UPDATE OF S.ON_HAND,
S.W_PL,PR.R_AVAIL
The following deadlock is not an ORACLE error. It is a
deadlock due to user error in the design of an application
or from issuing incorrect ad-hoc SQL. The following
information may aid in determining the deadlock:
Deadlock graph:
---------Blocker(s)-------- ---------Waiter(s)---------
Resource Name process session holds waits process session holds waits
TX-0021004b-000125d8 366 560 X 329 135 X
TX-0008003b-000125fc 329 135 X 366 560 X
session 560: DID 0001-016E-00000002 session 135: DID 0001-0149-00000002
session 135: DID 0001-0149-00000002 session 560: DID 0001-016E-00000002
Rows waited on:
Session 135: obj - rowid = 00017FAC - AAAX+sAAPAAAS9/AAP
Session 560: obj - rowid = 0001586C - AAAVhsABXAAAAIRAAN

We know the objects ,but how to find out the username ?

Thanks