How to hot-reload JWT token (Java Client)

[ossibaer]

Hey folks,

I'm trying to set up a Pulsar Java Client with JWT Authorization following this guide: https://pulsar.apache.org/docs/3.2.x/security-jwt/#configure-jwt-authentication-in-pulsar-clients
The token used is only valid for a few hours & then is updated in the application. I thought that using a Supplier the token is fetched before sending a new message, but it seems it is only read once when creating a new client. Do I have to create new clients each time or is there a better way?

[lhotari]

This is a current gap in the client: #22314 (JWT) and #13951 (for OAuth2/OIDC). Contributions are welcome!