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Java Weekly, Issue 250 Here we go… 1. Spring and Java ===== >> How Java Maps Protect Themselves From DOS Attacks [javaspecialists.eu] A deep dive into the evolution of the hashCode method in the String class. A fascinating read. >> Testing In The Modular World [sormuras.github.io] A great introduction to the ins… Continue Reading java-weekly-250
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Importance of Main Manifest Attribute in a Self-Executing JAR DevOps Java 1. Overview Every executable Java class has to contain a main method. Simply put, this method is a starting point of an application. To run our main method from a self-executing JAR file, we have to create a proper… Continue Reading java-jar-executable-manifest-main-class
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Intro to Spinnaker 1. Overview In this tutorial, we’re going to look at Spinnaker, an open-source continuous delivery platform built by Netflix. We can use it to deploy our applications across multiple cloud providers. The system is built on top of Spring Boot and supports many cloud providers. We’ll see… Continue Reading spinnaker
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Introduction to Testing with Arquillian 1. Overview Arquillian is a container-agnostic integration testing framework for Java EE. Using Arquillian minimizes the burden of managing containers, deployments, framework initializations, and so on. We can focus on writing actual tests and not on bootstrapping the test environment. 2. Core Concepts ==== 2.1.… Continue Reading arquillian
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Introduction to Smooks 1. Overview In this tutorial, we’ll introduce the Smooks framework. We’ll describe what it’s, list its key features, and eventually learn how to use some of its more advanced functionality. First of all, let’s briefly explain what the framework is meant to achieve. 2. Smooks Smooks is… Continue Reading smooks
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Maven Compiler Plugin 1. Overview This quick tutorial introduces the compiler plugin, one of the core plugins of the Maven build tool. For an overview of the other core plugins, refer to this article. 2. Plugin Goals The compiler plugin is used to compile the source code of a Maven… Continue Reading maven-compiler-plugin
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Command-Line Arguments in Spring Boot 1. Overview In this quick tutorial, we’ll discuss how to pass command-line arguments to a Spring Boot application. We can use command-line arguments to configure our application, override application properties or pass custom arguments. 2. Maven Command-Line Arguments First, let’s see how we can pass… Continue Reading spring-boot-command-line-arguments
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Guide to Apache Commons CircularFifoQueue 1. Overview In this quick tutorial, we’ll have a look at the CircularFifoQueue data structure provided in the collections4.queue package of the Apache Commons Collections library. CircularFifoQueue<E> implements the Queue<E> interface and is a fixed-size, non-blocking queue — when you add an element to a… Continue Reading commons-circular-fifo-queue
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Guide to Google Tink 1. Introduction Nowadays, many developers use cryptographic techniques to protect user data. In cryptography, small implementation errors can have serious consequences, and understanding how to implement cryptography correctly is a complex and time-consuming task. In this tutorial, we’re going to describe Tink – a multi-language, cross-platform… Continue Reading google-tink
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Show Hibernate/JPA SQL Statements from Spring Boot 1. Overview Spring JDBC and JPA provide abstractions over native JDBC APIs allowing developers to do away with native SQL queries. However, often we need to see those auto-generated SQL queries and the order in which they were executed for debugging purposes. In… Continue Reading sql-logging-spring-boot
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