I've added and removed the FOR loop printing the result to include/exclude an if statement.. neither pass even though the output is correct. EG: Below vs what's in my solution.
for (Map.Entry<Integer, Integer> entry : frequencyMap.entrySet()) {
            if (entry.getValue() != 0) {
                String str = String.valueOf(Character.toChars(entry.getKey()));
                int freq = entry.getValue();
                System.out.println(str + " " + freq);
I felt like creating a HashMap where key = ascii AND value = 0 was a good way to set the framework up for counting values.