I have moved the addDateTimeFormatPatterns funtion from the .aj file to the .java controler, to change the date format.

Code:
    void addDateTimeFormatPatterns(Model uiModel) {
        uiModel.addAttribute("myentity_datecreation_date_format", DateTimeFormat.patternForStyle("SF", LocaleContextHolder.getLocale()));
    }
But now the date is showed in the list.jspx as

Code:
23/01/13 18'18'19'' CET
The code at list.jspx is the one generated by roo.

Code:
<table:column date="true" dateTimePattern="${myentity_datecreation_date_format}" id="myentity_DateCreation" property="dateCreation" z="B1V1DL81MdguOdjVlhJcxPibASo="/>
Is a know bug? should I open a Jira ticket?