public void createNewMigration() {
    MigrationMap newMap = new MigrationMap();
    final EditMigrationDialog editMigrationDialog = new EditMigrationDialog(myProject, newMap, myMigrationMapSet, "");
    if (!editMigrationDialog.showAndGet()) {
      return;
    }
    updateMapFromDialog(newMap, editMigrationDialog);

    myMigrationMapSet.addMap(newMap);
    try {
      myMigrationMapSet.saveMaps();
    }
    catch (IOException e) {
      LOG.error("Couldn't save migration maps.", e);
    }
  }
public void createNewMigration()