Not able to render © symbol

That's because all HTML content is escaped in the client side.

You can override this behavior with Label, by using new Label("©", Label.CONTENT_XHTML); but no such feature for Links I'm afraid.

I think we should have similar constructors for most of the components and their captions, allowing the developer to decide if she wants to allow HTML content to be rendered.

Worth a ticket IMO.

You can't use HTML entities in captions, but you can use Unicode characters. You could just type it from your keyboard or use the Unicode codes quoted with [tt]\u[/tt]. For example:

TextField name = new TextField("\u00A9 Copyright");

In Label, you can use the HTML [tt]©[/tt] entity if you use the XHTML content mode. For example [tt]new Label("©", Label.CONTENT_MODE_XHTML);[/tt].

thanks :-)