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Chained Exceptions in Java 1. Overview In this article, we’ll have a very brief look at what Exception is and go in depth about discussing the chained exceptions in Java. Simply put, an exception is an event that disturbs the normal flow of the program’s execution. Let’s now see… Continue Reading java-chained-exceptions
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Converting String to Stream of chars 1. Overview Java 8 introduced the Stream API, with functional-like operations for processing sequences. If you want to read more about it, have a look at this article. In this quick article, we’ll see how to convert a String to a Stream of single… Continue Reading java-string-to-stream
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Java Interfaces 1. Overview In this tutorial, we’re going to talk about interfaces in Java. We’ll also see how Java uses them to implement polymorphism and multiple inheritances. 2. What Are Interfaces in Java? In Java, an interface is an abstract type that contains a collection of methods and constant variables.… Continue Reading java-interfaces
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Introduction to Apache Shiro 1. Overview In this article, we’ll look at Apache Shiro, a versatile Java security framework. The framework is highly customizable and modular, as it offers authentication, authorization, cryptography and session management. 2. Dependency Apache Shiro has many modules. However, in this tutorial, we use the shiro-core… Continue Reading apache-shiro
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Jackson Exceptions – Problems and Solutions 1. Overview In this tutorial, we’ll go over the most common Jackson Exceptions – the JsonMappingException and UnrecognizedPropertyException. Finally – we’ll briefly discuss Jackson no such method errors. Further reading: Jackson – Custom Serializer Control your JSON output with Jackson 2 by using a… Continue Reading jackson-exception
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Introduction to Serenity BDD 1. Introduction In this tutorial, we’ll give an introduction to Serenity BDD – a great tool for applying Behaviour Driven Development (BDD). This is a solution for automated acceptance testing that generates well-illustrated testing reports. 2. Core Concepts The concepts behind Serenity follow the concepts behind… Continue Reading serenity-bdd
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REST API with Jersey and Spring [.s1]## 1. Overview Jersey is an open source framework for developing RESTful Web Services. It serves as a reference implementation of JAX-RS. In this article, we’ll explore the creation of a RESTful Web Service using Jersey 2. Also, we’ll use Spring’s Dependency Injection (DI)… Continue Reading jersey-rest-api-with-spring
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Introduction to Spring Boot CLI 1. Introduction Spring Boot CLI is a command-line abstraction that allows us to easily run Spring micro-services expressed as Groovy scripts. It also provides simplified and enhanced dependency management for those services. This short article takes a quick look at how to configure Spring Boot… Continue Reading spring-boot-cli
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Quick Guide to @RestClientTest in Spring Boot 1. Introduction This article is a quick introduction to the @RestClientTest annotation. The new annotation helps simplify and speed up the testing of REST clients in your Spring applications. 2. REST Client Support in Spring Boot Pre-1.4 Spring Boot is a handy framework… Continue Reading restclienttest-in-spring-boot
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@DynamicUpdate with Spring Data JPA 1. Overview When we use Spring Data JPA with Hibernate, we can use the additional features of Hibernate as well. @DynamicUpdate is one such feature. @DynamicUpdate is a class-level annotation that can be applied to a JPA entity. It ensures that Hibernate uses only the… Continue Reading spring-data-jpa-dynamicupdate
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