WildFly Configuration

In this tutorial we will learn how to install WildFly application server. WildFly runs on top of the Java platform therefore it needs at least a Java Runtime Environment (JRE) to run. If you want to compile and build Java web applications, you will also need the Java Development Kit (JDK), which provides the necessary … Read more

This tutorial describes how to capture lifecycle events notifications in WildFly 11 and above. Since WildFly 11 it’s much easier to capture JMX notifications of the server lifecycle events. Each time that an event like start/stop/resume etc. happens, the application server will send an AttributeChangeNotifications on the object named “jboss.root:type=state“. If you have subscribed to … Read more

In this tutorial you will learn how to debug the list of WildFly modules loaded at boot. In order to do that, you need to increase the level of logging on the namespace “org.jboss.modules” so that it will log information about a particular class being loaded and the module from which it comes. /subsystem=logging/logger=org.jboss.modules:add(level=TRACE)  Now … Read more

This tutorial will illustrate how to configure JVM Settings in a WildFly / JBoss EAP Domain The JVM settings of WildFly / JBoss EAP Domain Domain server instances can be configured at different levels: At Host Controller level, at Server Group level and on individual Server level. A default jvm configuration is defined on each … Read more

Patching the application server is e mechanism by which you can commit or rollback changes to the application server libraries – see the first article about it: Patching WildFly application server Patching the application server has however some implications if you want to apply further changes to the application server modules Let’s see an example. Here … Read more

This short tutorial explains all the things you need to know about the startup process of JBoss AS, how to inject system properties in the application server and how to trace the logs of the start up activities.  How to start JBoss EAP 6 and WildFly You can start the application server in standalone mode … Read more

Please note, this tutorial is related to JBoss 5. The next versions of the application server do not use port 1099 for binding interfaces. A piftall which is sometimes reported in JBoss forums is that JBoss refuses to start up correctly after an ear deployment unit has been added. javax.naming.CommunicationException: Failed to connect to server … Read more

In this tutorial we will demonstrate how to retrieve Transaction information from your Java EE applications running on JBoss/WildFly and how to combine this information with the Narayana Transaction Analyser application. By default the javax.transaction API does not expose details about the single Transaction id which are running on the application server. However, if you … Read more

In this tutorial we will demonstrate how to create in a matter of minutes a JBoss AS 7.1.1 appliance designed around a Linux distribution. The software we will use for this purpose is Oracle’s Virtual Box. VirtualBox is a cross-platform virtualization application. What does that mean? For one thing, it installs on your existing Intel … Read more