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Introduction to cglib 1. Overview In this article, we will be looking at the cglib (Code Generation Library) library. It is a byte instrumentation library used in many Java frameworks such as Hibernate or Spring. The bytecode instrumentation allows manipulating or creating classes after the compilation phase of a program.… Continue Reading cglib
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Exploring jrecreate 1. Introduction to EJDK The EJDK (Embedded Java Development Kit) was introduced by Oracle to solve the problem of providing binaries for all the available embedded platforms. We can download the latest EJDK from Oracle’s site here. Simply put, it contains the tools for creating platform-specific JREs. 2.… Continue Reading jrecreate
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A Guide to Spring Session Reactive Support: WebSession Spring Web 1. Introduction In this article, we’ll learn how to combine Spring Session with Spring WebFlux. Specifically, we’ll learn how to use Spring WebSession which unites Spring Session with Spring Boot 2’s WebFlux. A Spring Session is defined as “a simplified… Continue Reading spring-session-reactive
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Custom Scope in Spring 1. Overview Out of the box, Spring provides two standard bean scopes (“singleton” and “prototype”) that can be used in any Spring application, plus three additional bean scopes (“request”, “session”, and “globalSession”) for use only in web-aware applications. The standard bean scopes cannot be overridden, and… Continue Reading spring-custom-scope
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Auto-Generated Field for MongoDB using Spring Boot 1. Overview In this tutorial, we’re going to learn how to implement a sequential, auto-generated field for MongoDB in Spring Boot. When we’re using MongoDB as the database for a Spring Boot application, we can’t use @GeneratedValue annotation in our models as it’s… Continue Reading spring-boot-mongodb-auto-generated-field
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Testing with JGoTesting 1. Overview JGoTesting is a JUnit-compatible testing framework inspired by Go’s testing package. In this article, we’ll explore the key features of the JGoTesting framework and implement examples to showcase its capabilities. 2. Maven Dependency First, let’s add the jgotesting dependency to our pom.xml: <dependency> <groupId>org.jgotesting</groupId> <artifactId>jgotesting</artifactId>… Continue Reading jgotesting
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The Difference Between Failure and Error in JUnit 1. Introduction In this tutorial, we’ll explore the differences between a failure and an error in JUnit tests. In short, failures are unfulfilled assertions while errors are due to abnormal test execution. 2. Sample Code Let’s consider a very simplistic example, namely a… Continue Reading junit-failure-vs-error
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The Baeldung Weekly Review 11 Java This is an exciting week – the week when Java 8 is finally out, so it makes sense to start here: ⇒ JDK 8: General Availability ⇒ Oracle Releases Java 8 at EclipseCon Java 8 is out. Nuff said. ⇒ Java 8 Tutorial And… Continue Reading 2014-week-review-11
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Convert XML to JSON Using Jackson 1. Overview In this tutorial, we’ll see how to convert an XML message to JSON using Jackson. For readers new to Jackson, consider getting familiar with the basics first. 2. An Introduction to Jackson We can think about parsing JSON in three different ways with Jackson:… Continue Reading jackson-convert-xml-json
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Intro to Apache Kafka with Spring 1. Overview Apache Kafka is a distributed and fault-tolerant stream processing system. In this article, we’ll cover Spring support for Kafka and the level of abstractions it provides over native Kafka Java client APIs. Spring Kafka brings the simple and typical Spring template programming… Continue Reading spring-kafka
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