OIM12c Postprocess Event Handler Not Populating value in Middlename

@Override

Hi,

In OIM12c environment, I have written post-process event handler  to populate middlename = firstname+"123" and registered plugin successfully,  but its not updating value. the process executes successfully and also writing some logs values in log file. Can anyone please check below code and also logs to identify where I am doing a mistake or is anything missed in code or configuration after deployment of plugin.

Code I have written.

public class SetMiddleName implements PostProcessHandler{

    public SetMiddleName() {

        super();

    }

    @Override

    public EventResult execute(long processId, long eventId,

                Orchestration orchestration) {

            HashMap<String, Serializable> parameters = orchestration

                    .getParameters();

            // If the middle name is empty set the first letter of the first name