Bug 190061 [Metadata] Update @since tags for new API
Patch to follow
bundles/org.eclipse.core.commands/src/org/eclipse/core/commands/Command.java
*/
	private final void firePostExecuteSuccess(final Object returnValue) {
		
		if (DEBUG_COMMAND_EXECUTION) {
			Tracing.printTrace("COMMANDS", "execute" + Tracing.SEPARATOR 
					+ "success: id=" + getId() + "; returnValue=" 
					+ returnValue);
		}
		if (executionListeners != null) {
			final Object[] listeners = executionListeners.getListeners();
			for (int i = 0; i < listeners.length; i++) {
				final IExecutionListener listener = (IExecutionListener) listeners[i];
				listener.postExecuteSuccess(getId(), returnValue);
			}
		}
	}
	/**
	 * Notifies the execution listeners for this command that an attempt to
	 * execute is about to start.
	 * 
	 * @param event
	 *            The execution event that will be used; never <code>null</code>.
	 */
	private final void firePreExecute(final ExecutionEvent event) {
		
		if (DEBUG_COMMAND_EXECUTION) {
			Tracing.printTrace("COMMANDS", "execute" + Tracing.SEPARATOR 
					+ "starting: id=" + getId() + "; event=" + event); 
		}
		if (executionListeners != null) {