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Multi-Module Project with Maven 1. Overview In this tutorial, we’ll show how to build a multi-module project with Maven. First, we’ll discuss what’s a multi-module project and have a look at the benefits of following this approach. Then we’ll set up our sample project. For a good introduction to Maven, check out… Continue Reading maven-multi-module
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A Guide to the Java Math Class 1. Introduction In this tutorial, we’re going to describe the Math class that provides helpful static methods for performing numeric operations such as exponential, logarithm, etc. 2. Basic Math Functions The first set of methods we’ll cover are the basic math functions such… Continue Reading java-lang-math
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Introduction to Apache Pulsar 1. Introduction Apache Pulsar is a distributed open source Publication/Subscription based messaging system developed at Yahoo. It was created to power Yahoo’s critical applications like Yahoo Mail, Yahoo Finance, Yahoo Sports etc. Then, in 2016, it was open sourced under the Apache Software Foundation. 2. Architecture Pulsar… Continue Reading apache-pulsar
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Guide to Selenium with JUnit / TestNG 1. Introduction This article is a quick, practical introduction to working with Selenium and writing tests with JUnit and TestNG. 2. Selenium Integration In this section, we’ll start with a simple scenario – opening a browser window, navigating to a given URL and… Continue Reading java-selenium-with-junit-and-testng
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JavaServer Faces (JSF) with Spring 1. Overview In this article we will look at a recipe for accessing beans defined in Spring from within a JSF managed bean and a JSF page, for the purposes of delegating the execution of business logic to the Spring beans. This article presumes the… Continue Reading spring-jsf
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A Guide to Java Bytecode Manipulation with ASM Java Java Bytecode 1. Introduction In this article, we’ll look at how to use the ASM library for manipulating an existing Java class by adding fields, adding methods, and changing the behavior of existing methods. 2. Dependencies We need to add the… Continue Reading java-asm
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Java Weekly, Issue 183 Lots of interesting writeups on Java 9 this week. Here we go… 1. Spring and Java ===== >> What’s new in JPA 2.2 – Java 8 Date and Time Types [vladmihalcea.com] JPA 2.2 finally has the support for java.time. >> Oracle Defends the Java Module System… Continue Reading java-weekly-183
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Mocking Exception Throwing using Mockito 1. Overview In this quick tutorial – we’ll focus on how to configure a method call to throw an exception with Mockito. For more information on the library, also check out our Mockito series. Here’s a simple dictionary class we’ll use in these examples: class… Continue Reading mockito-exceptions
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Guide to java.util.concurrent.Locks 1. Overview Simply put, a lock is a more flexible and sophisticated thread synchronization mechanism than the standard synchronized block. The Lock interface has been around since Java 1.5. It’s defined inside the java.util.concurrent.lock package and it provides extensive operations for locking. In this article, we’ll… Continue Reading java-concurrent-locks
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Java String equalsIgnoreCase() 1. Overview In this quick tutorial, we’ll look at determining if two String values are the same when we ignore case. 2. Using the equalsIgnoreCase() equalsIgnoreCase() accepts another String and returns a boolean value: String lower = “equals ignore case”; String UPPER = “EQUALS IGNORE CASE”; assertThat(lower.equalsIgnoreCase(UPPER)).isTrue(); 3.… Continue Reading java-string-equalsignorecase
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