Problem get tasks concurrently

[tiennd]

Hi,
I'm using webservice to get assigned tasks and whenever I open My Alfresco page (which call to getAssignedTasks) and run my client application concurrently, only one of them can get the tasks. The ealier one can get the results.
Could that be problem with transaction?
Anyone can help? Thank you,
Regards,
Tien

[tiennd]

Hi,
I solved it. I didn't commit the transaction properly, that's why everything seems to be very strange.
Regards,