How to do variable recoding in JSP?

Question

Java

I have such a JSP variable in the project

<c:set var="title" value="Тендер №${name} \"${fn:escapeXml(name)}\" от компании \"${name}\""/>

It is referenced by open graph when posting on facebook.
Since the value of the name variable can be anything, "crazy" sometimes pops up in publications.
Give advice on how to make the value of the variable name always encoded in Unicode