protected void showError (Throwable cause, Widget near)
    {
        if (near == null) {
            Popups.error(formatError(cause));
        } else {
            Popups.errorBelow(formatError(cause), near);
        }
    }
protected void showError ( Throwable cause , Widget near ) { if ( near == null ) { Popups . error ( formatError ( cause ) ) ; } else { Popups . errorBelow ( formatError ( cause ) , near ) ; } }
Displays a popup reporting the specified error, near the specified widget if it is non-null.