Getting the OIM Users list assigned to a particular group

public String usersingroup(String groupname){

HashMap userMap = new HashMap();
String uid="";

try {
userMap.put("Groups.Group Name", groupname);
System.out.println("Group Name==>" + groupname);

tcResultSet moResultSet = moGroupUtility.getAllMemberUsers(getGroupKey(groupname));
for (int i=0; i < moResultSet.getRowCount(); i++){ moResultSet.goToRow(i); uid = moResultSet.getStringValueFromColumn(1); System.out.println("USerIDs==>"+uid);
}
}catch(Exception e){
System.out.println("No such groups Found");
}
return uid;
}