java-servlet: What is the difference between encodeRedirectUrl and encodeURL?

HttpServletResponse provides method to encode URL in HTML hyperlinks so that the special characters and white spaces can be escaped and append session id to the URL. It behaves similar to URLEncoder encode method with additional process to append jsessionid parameter at the end of the URL.

However HttpServletResponse encodeRedirectUrl() method is used specially for encode the redirect URL in response.

So when we are providing URL rewriting support, for hyperlinks in HTML response, we should use encodeURL() method whereas for redirect URL we should use encodeRedirectUrl() method.