RemoteJWKSet use synchronized for synchronization.
But this will suspend the carrier thread.
In some specific situations, it may cause the server to hang:

single carrier thread.(Single core CPU). And call itself to retrieve jwk.

RemoteJWKSet is deprecated. Should we replace it with JwkSourceBuilder?

SpringBoot: 3.3.1
Java: Temurin-21.0.4+7