Remove default value ('---'/'~NOTHING~') value from Single select list of values

Issue:

How to remove default value ('---'/'~NOTHING~') value from Single select list of values.

Resolution:

This is not configurable and  needs customization.

Will need to modify TIBCO JasperReports^® Server source code to make the change.

The affected Java class is com/jaspersoft/jasperserver/war/cascade/handlers/InputControlHandler.java

/**
* Label substitution for empty selection in multiselect controls and for empty value in single-value controls
* which sent from or to UI. 
* @see {@link BasicInputControlHandler#fillStateValue}
*/

public static final String NOTHING_SUBSTITUTION_LABEL = "---";

Additionally need to do the change in SingleSelectListInputControlHandler.class.

Need to recompile the class and package it again.