When developing microservice, it is desirable to use a non-blocking approach to build some services that have large traffic. This enables them to be elastic, that is, scalable, responsive and resilient, meaning that they will be tolerant of failures. …

Short Intro … The Certified Kubernetes Application Developer (CKAD) program has been developed by the Cloud Native Computing Foundation (CNCF), in collaboration with The Linux Foundation, to help expand the Kubernetes ecosystem through standardized training and certification. The exam is proctored online. It is a performance-based test which consists of a set of…

Local variables are the most essential tool in Java. They let methods to compute significant results by reasonably storing provisional values. Unlike a field or instance variable, a local variable is declared, initialized, and used in the same block it was declared. The name and initializer of a local variable…

Spring provides several ways of injecting/looking up values from the application configuration properties file. One of them is the @Value annotation discussed in the Spring @Value annotation tricks write up. Another one is the using @ConfigurationProperties annotation on a configuration bean to inject properties values to a bean and use…

Spring framework provides@Value annotation in the org.springframework.beans.factory.annotationpackage. This annotation is used at various level in our application either at field level for expression-driven dependency injection in which a value can be injected into a variable in a class or at the parameter level of a method or a constructor that…

As an application developer or software designer, what we want is to develop or build software that’s responsive to changes. There is much pressure in terms of request from various sources and these can be external or internal forces not limited to market demands, growth, new requirements, bugs, defects, new…