Some months ago I attended the Spring IO 2015 event hosted in Barcelona. There were quite a big list of interesting talks and workshops regarding the main new features of the Spring ecosystem, which includes a new version of Spring, Spring Cloud, micro-services architecture, WebSockets, etc. Something that kept my attention was that all or almost all of the examples created for the talks and workshops were created with the amazing tool created by Pivotal and released last year called Spring Boot. Before Spring Boot, creating Spring-based application sometimes was a painful process in terms of…