public MigrationMap cloneMap() {
    MigrationMap newMap = new MigrationMap();
    newMap.myName = myName;
    newMap.myDescription = myDescription;
    newMap.myFileName = myFileName;
    for(int i = 0; i < myEntries.size(); i++){
      MigrationMapEntry entry = getEntryAt(i);
      newMap.addEntry(entry.cloneEntry());
    }
    return newMap;
  }
public MigrationMap cloneMap()