Que tal, solucione el problema,... gracias!
Código:
Query q = em.createQuery("Consulta");
List results = q.getResultList();
String[][] returnArrayContent = new String [results.size()][2];
int count = 0;
for(Object currentValue: results){
Object[] object = (Object[])currentValue;
returnArrayContent[count][0] = (String)object[0];
returnArrayContent[count][1] = ((Long)object[1]).toString();
count ++;
}