SoapUI creates a folder under /home/USERNAME/.java/.userPrefs with a very long name

SoapUI version 5.1.3

Linux : Red Hat Enterprise Linux Server release 6.7 (Santiago)

(We cant use the latest version - project requirement)

Hi to you  all,

My first post here and not an expert, so apologies in advance.

I wonder if anyone can help ; when launching SOAPUI via the script /opt/SmartBear/SoapUI-5.1.3/bin/soapui.sh

it will create the prefs.xml  file under /home/USERNAME/.java/.userPrefs/VERYLONGSTRING/prefs.xml

Due the rules in place, that name is not acepted by our compliency team - it is indeed a long string containing all sort of characters.

The questionis , how can I configure SoupUI to  create the subdirectory with an specific name and not that random stream of characters?

Cheers,

Marco