I have working project with springboot 2, with 2 datasources configured as shown in here or here. I upgraded to springboot 3. All LocalContainerEntityManagerFactoryBean, DataSource, DataSourceProperties and PlatformTransactionManager remained the same. But when I run the project now, I’m getting:

I am using Azure with a Spring Boot 3 backend system with Angular 17.
My backend system is reachable under http://api.example.com and login under http://api.example.com/login where my frontend sits under http://example.com/ and redirects after a successful login to http://example.com/dashboard

I have a code which was working fine with Spring boot 2 but when i moved it to spring 3, I get an error message saying