HashMap contains all values but doesn't show all values

[xcallmejudasx]

I'm a little confused as to why my map.getValue() only returns [Drafter] even though every test I've done using loops and list.get() return [Developer,Drafter]?

Here is my code with a better explanation of what is happening.

//resultSet contains 2 group names and both are sucessfully added to the groups list and displayed using MapEntry.getKey()
resultSet.beforeFirst();
while(resultSet.next()){
	if(!groups.contains(rs.getString("GROUP_FULLNAME"))){
//	System.out.println("Adding to groups: "+rs.getString("GROUP_FULLNAME"));
        groups.add(resultSet.getString("GROUP_FULLNAME"));	
	}						
}

//roleNames is a result that contains all the roles when groupName = groups.get(xx)
for(int xx = 0; xx < groups.size(); xx++){
	if(!roleNames.first()){
			throw new Exception("role_name query failed!");
	}
	roleNames.beforeFirst();
	rolesList.clear();
	while(roleNames.next()){
	System.out.println("Adding role: "+roleNames.getString("ROLE_NAME")+" to group: "+groups.get(xx));
	rolesList.add(roleNames.getString("ROLE_NAME"));
	}
	//puts the key and value together in the map
	System.out.println(groups.get(xx)+" : "+rolesList.size());
	for(int i = 0; i<rolesList.size(); i++){
		System.out.println(groups.get(xx)+" ...:..."+rolesList.get(i));
	}
	groupRoleInfoMap.put(groups.get(xx), rolesList);
}

now the output for all that seems fine

Adding role: Developer to group: Corporate Engineering Technology
Adding role: Drafter to group: Corporate Engineering Technology
Corporate Engineering Technology : 2
Corporate Engineering Technology ...:...Developer
Corporate Engineering Technology ...:...Drafter
Adding role: Drafter to group: Rig Solutions.RS Mechanical.Mud Pumps
Rig Solutions.RS Mechanical.Mud Pumps : 1
Rig Solutions.RS Mechanical.Mud Pumps ...:...Drafter

however when I use this code the output is different and doesn't show all roles

Set set = groupRoleInfoMap.entrySet();
Iterator i = set.iterator();

while(i.hasNext()){
      Map.Entry me = (Map.Entry)i.next();
      System.out.println(me.getKey() + " : " + me.getValue() );
}

Corporate Engineering Technology : [Drafter]
Rig Solutions.RS Mechanical.Mud Pumps : [Drafter]

I'm assuming all the data is there but some reassurance would be nice. Have I done something wrong within the iterator loop or what?

[OrangeDog]

A map cannot have repeated keys. When you add a CET role the second time, it overwrites the first one. You probably want a map containing lists of values. e.g. Map<String,ArrayList<String>>

Using for-each loops and genericised collections will help with programming, readability and reduce errors.

for (Map.Entry<String,String> me : groupRoleInfoMap.getEntrySet() {
    System.out.println(me.getKey() + " : " + me.getValue() );
}

[xcallmejudasx]

I wasn't aware I was repeating the keys. My map is already a <String, List<String>>. Logically everything seems to follow and work correctly but if you could point out any flaws I'd appreciate it.
groupRoleInfoMap.put only gets called once per group(the outer loop) and adds the groupName and the list of roles within that group(determined by inner loop). It seems so simple and I can't understand where I'm going wrong.

[OrangeDog]

Then you want something like

groupRoleInfoMap.get(xx).add(rolesList);

every time after the first occurrence of each key