public void setFailedSet(java.util.Collection<EventDetailsErrorItem> failedSet) {
        if (failedSet == null) {
            this.failedSet = null;
            return;
        }

        this.failedSet = new java.util.ArrayList<EventDetailsErrorItem>(failedSet);
    }
public void setFailedSet ( java . util . Collection < EventDetailsErrorItem > failedSet ) { if ( failedSet == null ) { this . failedSet = null ; return ; } this . failedSet = new java . util . ArrayList < EventDetailsErrorItem > ( failedSet ) ; }
<p>
Error messages for any events that could not be retrieved.
</p>

@param failedSet
Error messages for any events that could not be retrieved.