The panel contains no major surprises with Andy Reid still out of favour and goalkeeper Dean Kiely not involved after his walkout from the squad prior to the friendly against Nigeria in May.
Ireland pulled out of the Republic squad prior to a Euro 2008 qualifier against the Czech Republic in September 2007 and he has not played for his country since then.
He withdrew from the squad for the Prague game, initially citing the passing of his maternal grandmother, and then the death of his paternal one, before it emerged that his girlfriend had suffered a miscarriage.
Trapattoni said that the Limerick game would be of "utmost importance to our side as it acts as our final game ahead of our World Cup qualifier against Cyprus in Nicosia in September".
"Australia, who have already qualified for the World Cup, will provide a stern test for the team as Pim Verbeek and his team have advanced through the Asian World Cup qualifiers undefeated in the final qualification phase," added the Italian.
"I am looking forward to playing an international friendly of this stature at the magnificent Thomond Park in Limerick.
"I am aware of the proud sporting culture in Limerick and I am sure that the people of Munster will get behind the team for this game."
Republic of Ireland squad
Goalkeepers: Given (Man City), Westwood (Coventry), Murphy (Scunthorpe)
Defenders: O'Shea (Manchester United), Dunne (Manchester City), Kelly (Fulham), Kilbane (Hull), Foley (Wolves), Nolan (Preston), St Ledger (Preston)
Midfielders: McGeady (Celtic), Andrews (Blackburn), Gibson (Manchester United), Whelan (Stoke), Duff (Newcastle), S Hunt (Reading), Miller (unattached), Keogh (Wolves), Lawrence (Stoke)
Forwards: Keane (Tottenham), Doyle (Wolves), Folan (Hull), Long (Reading), Best (Coventry)
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