Bug 190061 [Metadata] Update @since tags for new API
Patch to follow
bundles/org.eclipse.jface/src/org/eclipse/jface/viewers/CellEditor.java
/**
 * Abstract base class for cell editors. Implements property change listener handling,
 * and SWT window management.
 * <p>
 * Subclasses implement particular kinds of cell editors. This package contains various
 * specialized cell editors:
 * <ul>
 *   <li><code>TextCellEditor</code> - for simple text strings</li>
 *   <li><code>ColorCellEditor</code> - for colors</li>
 *   <li><code>ComboBoxCellEditor</code> - value selected from drop-down combo box</li>
 *   <li><code>CheckboxCellEditor</code> - boolean valued checkbox</li>
 *   <li><code>DialogCellEditor</code> - value from arbitrary dialog</li>
 * </ul>
 * </p>
 */
public abstract class CellEditor {
    /**
     * List of cell editor listeners (element type: <code>ICellEditorListener</code>).
     */
    private ListenerList listeners = new ListenerList();
    /**
     * List of cell editor property change listeners 
     * (element type: <code>IPropertyChangeListener</code>).
     */
    private ListenerList propertyChangeListeners = new ListenerList();
    /**
     * Indicates whether this cell editor's current value is valid.
     */
    private boolean valid = false;
    /**