AWS CDK, JAX-RS and Lambda, Singletons, JPA, ARM, Graviton--Topics for the 93rd

Questions and topics ( for the 93rd, and very last in 2021, live stream on

  1. AWS Java CDK vs. CloudFormation
  2. JAX-RS application with multiple endpoints as AWS Lambda
  3. @Singleton vs. EJB @Singleton vs. @ApplicationScoped vs. @Stateless
  4. EntityManager and thread safety
  5. CDK and Bootstrapping
  6. Schema creation and evolution with JPA
  7. One process per container
  8. Cost reduction with Graviton
See you every first Monday of the month at 8pm CET (UTC+1:00). Show is also announced at:

Any questions left? Ask now: and get the answers at the next


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