Currently to support HTML character references (e.g. ©) you need to put a HTML Doctype at the top of the TML file.
e.g. <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
However for HTML 5 they have stopped using XML doctypes and instead use
If you change tapestry page to use this you can no longer use entities as the XML parser doesn't know what to do.
Ideally there should be some kind of logic that detects <!DOCTYPE html> and include a suitable DTD to resolve the common HTML entities. The HTML 5 specification defines the allowed named character references - http://dev.w3.org/html5/spec/Overview.html#named-character-references. There doesn't seem to be a DTD of allowed references maintained anymore.