Ean V questions

Ean V answers

• How to update "many to many" in Hibernate
• Are these examples of polymorphism?
• Can not handle hibernate exceptions inside @Transactional methods in Spring app
• Difference between raw types and <?> in Generics
• HttpPost failed due to "Cannot retry request with a non-repeatable request entity"
• org.apache.catalina.connector.ClientAbortException: java.io.IOException: APR error: -32
• UnexpectedRollbackException: Transaction rolled back because it has been marked as rollback-only
• Transaction marked as rollback only: How do I find the cause
• Hibernate: filter by list using criteria