HashMap usage logic in `UpgradeTracker`

[abrbird]

Does the logic in the UpgradeTracker class work correctly with the use of String[] as a key, or should a different key type be used, such as List<String>? As I know hashCode for String[] returns a value based on the object's reference rather than the array's content.

modelmesh/src/main/java/com/ibm/watson/modelmesh/UpgradeTracker.java

Line 67 in af8c300

private final Map<String[], PerTypeLabelStats> upgradeTracker = new HashMap<>(1);

[fsatka]

anybody can answer on question, please)

[spolti]

@ckadner do you know this part of the code base?

[spolti]

I am not sure if it makes sense since it is a fixed hashmap.
String[] is fine in this case.
did you find any issue?