Learner questions

• default timeout for JAX-WS client
• newline charter \n gives "java.sql.SQLException: ORA-00911: invalid character\n" Oracle 11g
• Create CloudFormation Yaml from existing RDS DB instance (Aurora PostgreSQL)
• Calling method that exists in child classes but not in parent class
• @ControllerAdvice and @ExceptionHandler not getting triggered for my RestController
• Generating Java classes for Request and Response objects from Yaml file
• Method overloading with Parent and Child class as parameter [duplicate]
• How to specify multiple package names for service classes in REST web service using Jersey
• Singleton across JVM or Application instance or Tomcat instance

Learner answers