Ensure comparators in sorted associations are serializable #1444
From end-user Gunter Mussbacher: have recently discovered the "sorted" keyword in Umple. it's quite handy. however, there is an issue. in my course, we are using the Serializable interface to persist the application to a file.
This works quite well, but the Comparator used by the "sorted" keyword does not implement the Serializable interface. therefore, we have to change the generated code and make the instance variable using the Comparator transient. it would be great if the Comparator could implement the Serializable interface by default.