public void addJobGroupToNeverDelete(String group){
  if (group != null)   jobGroupsToNeverDelete.add(group);
}

public void addJobGroupToNeverDelete ( String group ) { if ( group != null ) jobGroupsToNeverDelete . add ( group ) ; }
add the given group to the list of job groups that will never be deleted by this processor , even if a pre - processing - command to delete the group is encountered .
