public void setItemLabelsVisible(boolean visible);

    /**
     * Sets a flag that controls whether or not the item labels for ALL series
     * are visible.
     * 
     * @param visible  the flag (<code>null</code> permitted).
     * 
     * @deprecated This method should no longer be used (as of version 1.0.6). 
     *     It is sufficient to rely on {@link #setSeriesItemLabelsVisible(int, 
     *     Boolean)} and {@link #setBaseItemLabelsVisible(boolean)}.
     */
    public void setItemLabelsVisible(Boolean visible);

    /**
     * Sets the visibility of item labels for ALL series and, if requested, 
     * sends a {@link RendererChangeEvent} to all registered listeners.
     * 
     * @param visible  a flag that controls whether or not the item labels are
     *                 visible (<code>null</code> permitted).
     * @param notify  a flag that controls whether or not listeners are 
     *                notified.
     *                
     * @deprecated This method should no longer be used (as of version 1.0.6). 
     *     It is sufficient to rely on {@link #setSeriesItemLabelsVisible(int, 
     *     Boolean, boolean)} and {@link #setBaseItemLabelsVisible(Boolean, 
     *     boolean)}.
     */
    public void setItemLabelsVisible(Boolean visible, boolean notify);