* Article: Quick and practical example of hexagonal architecture in java with Spring Project
* Removed server.port property from application.properties
* BAEL-3397: Difference between throw e and throw new Exception(e) in java
* BAEL-3397 : Removed links from readme file
* BAEL-3397: removed hexagonal module from the code
* BAEL-3397: renamed exceptions package name to rethrow
* BAEL-3397: Added next link in core-java-exceptions module and linked core-java-exceptions-2 module