For whatever it might be worth...
I just went through a possibly similar exercise, getting my 2.11
GWT-RPC-based app to run with Tomcat 10. I had to run around my codebase
and replace 'javax' with 'jakarta', but the last key step was ensuring that
my GWTRPC services inherited from this class:
Hi Team,
We are working on development environment with Tomcat 10 where third party
jar *jakarta.validation-api.jar *has been updated to tomcat specific
version where package structure is changed from javax.validation to
jakarta.validation.
When GWT 2.11 with tomcat specific jars(Gwt-servlet
