Bug 190061 [Metadata] Update @since tags for new API
Patch to follow
bundles/org.eclipse.core.commands/src/org/eclipse/core/commands/Command.java
if (stateIds != null) {
			for (int i = 0; i < stateIds.length; i++) {
				final String stateId = stateIds[i];
				if (this.handler instanceof IObjectWithState) {
					((IObjectWithState) this.handler).removeState(stateId);
				}
				if (handler instanceof IObjectWithState) {
					final State stateToAdd = getState(stateId);
					((IObjectWithState) handler).addState(stateId, stateToAdd);
				}
			}
		}
		boolean enabled = isEnabled();
		if (this.handler != null) {
			this.handler.removeHandlerListener(getHandlerListener());
		}
		
		this.handler = handler;
		if (this.handler != null) {
			this.handler.addHandlerListener(getHandlerListener());
		}
		string = null;
		
		if ((DEBUG_HANDLERS)
				&& ((DEBUG_HANDLERS_COMMAND_ID == null) || (DEBUG_HANDLERS_COMMAND_ID
						.equals(id)))) {
			final StringBuffer buffer = new StringBuffer("Command('"); 
			buffer.append(id);
			buffer.append("') has changed to "); 
			if (handler == null) {