Hi Adilson,
Please log this as an issue with IBM support.
In addition you can email me the stack trace of the java exception that is recorded in the log file( <install>/logs/XQE is the directory for those log files), and I'll check if it is a known issue and if there is a way to work around it.
henk.cazemier@ca.ibm.com//Henk
------------------------------
HENK CAZEMIER
------------------------------