Java Optional Values
Before Java 8 there were only two possible ways to gracefully exit a method when a value is not present, either you return null or throw an exception. This has changed since Jav...
Storing Passwords Securely with Bcrypt and Java
Storing passwords is a difficult task when we need to satisfy all the data protection laws, and it is getting even tougher with the rise of GDPR, the new European regulation in ...
JWTs with Spring Boot
JWT (JSON Web Token) is an open source standard commonly used to transmit data between two services in a compact and secure way. This standard offers a wide range of libraries t...
Functional Interfaces Fundamentals
Functional interfaces only have one abstract method different from the public methods of Object.class (equals, hashCode…), so that the contract contains a single method. Annota...