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The Tomcat java.net.BindException: Address Already in Use Error in Java DevOps 1. Overview In this quick tutorial, we’ll look at what causes the common java.net.BindingException Error: Address already in Use error and how we can deal with it. 2. When Does the Error Occur? As we know, the Apache Tomcat server, by… Continue Reading tomcat-bind-exception
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How to Find JAVA_HOME 1. Introduction In this quick post, we’ll learn how to find JAVA_HOME on Windows, Mac, and Linux. As we all know, JAVA_HOME is an environment variable that we commonly use to locate java executables like java and javac. 2. Windows-Specific Ways to Find JAVA_HOME If we’re using Windows as the… Continue Reading find-java-home
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Run a Java Application from the Command Line 1. Overview Typically, every meaningful application includes one or more JAR files as dependencies. However, there are times a JAR file itself represents a standalone application or a web application. We’ll focus on the standalone application scenario in this article. Hereafter, we’ll… Continue Reading java-run-jar-with-arguments
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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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Introduction to JBoss Undertow 1. Overview Undertow is an extremely lightweight and high-performance web server from JBoss. It supports both blocking and non-blocking APIs with NIO. Since it’s written is Java, it can be used in any JVM-based applications in embedded mode, even JBoss’s WilfFly server internally uses Undertow to… Continue Reading jboss-undertow
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Introduction to Atomix 1. Overview Most distributed applications require some stateful component to be consistent and fault-tolerant. Atomix is an embeddable library helping in achieving fault-tolerance and consistency for distributed resources. It provides a rich set of APIs for managing its resources like collections, groups, and tools for concurrency. To… Continue Reading atomix
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Java System.getProperty vs System.getenv DevOps Java 1. Introduction The package java.lang is automatically imported when in a Java application. This package contains many commonly used classes from NullPointerException to Object, Math, and String. The java.lang.System class is a final class, meaning that we cannot subclass it, therefore all methods are… Continue Reading java-system-get-property-vs-system-getenv
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Intro to Performance Testing using JMeter 1. Overview In this article, we’re going to use Apache JMeter to configure and run performance tests. 2. Setting up JMeter Let’s download JMeter, unzip it, go to the bin folder and run the executable (*.bat for Windows and *.sh for Linux/Unix). Next, we… Continue Reading jmeter
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Monitoring Java Applications with Flight Recorder 1. Overview In this tutorial, we’ll examine Java Flight Recorder, its concepts, its basic commands, and how to use it. 2. Java Monitoring Utilities Java is not just a programming language but a very rich ecosystem with a lot of tools. The JDK contains… Continue Reading java-flight-recorder-monitoring
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Where is the Maven Local Repository? 1. Overview This quick writeup will focus on where Maven stores all the local dependencies locally – which is in the Maven local repository. Simply put, when we run a Maven build, all the dependencies of our project (jars, plugin jars, other artifacts) are… Continue Reading maven-local-repository
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