public static String getOpenEngSBModelIdProperty(Class<?> modelClass) {
        Field field = getOpenEngSBModelIdField(modelClass);

        return (field == null) ? null : field.getName();
    }
public static String getOpenEngSBModelIdProperty ( Class < ? > modelClass ) { Field field = getOpenEngSBModelIdField ( modelClass ) ; return ( field == null ) ? null : field . getName ( ) ; }
Uses {@link #getAnnotatedFields(Class, Class)} to look for a field annotated with the {@code OpenEngSBModelId}
annotation, and if present, returns its name.

@param modelClass the class to introspect
@return the name of the {@link java.lang.reflect.Field} annotated with {@code OpenEngSBModelId}, or null