F.Marchioni

jBPM REST API made simple

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This tutorial will discuss how to use jBPM REST API to manage your Process Server with any tool able to execute simple HTTP requests such as curl. By using jBPM REST API you can perform the following actions: Create, update, or delete Process Server instances Retrieve information about Process instances, and associated KIE containers Start, … Read more

SOA interview questions (2022)

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Here’s a collection of SOA interview questions which could be useful before going for a technical interview. SOA Interview questions – general What is SOA ? Service-oriented architecture is a style of software design where services are provided to the other components by application components, through a communication protocol over a network. The basic principles … Read more

How do you connect a Datasource to a Cluster ?

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When connecting WildFly / JBoss EAP to a Database cluster you need to provide an appropriate JDBC Connection String. We’ll examine three popular Database: Oracle, MySQL and PostgreSQL. Oracle Real Application Clusters (RAC) Oracle Real Application Clusters (RAC) is a software component you can add to a high-availability solution that enables users on multiple machines … Read more

Where are my compiled JSP pages on JBoss / WildFly?

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WildFly application server places the source and compiled Servlets (derived from your JSP) under the standalone/tmp/<deployment_unit>/org/apache/jsp folder. Let’s see an example. You have deployed a Web application named “hello.war” which contains,in the root folder, the hello.jsp page. When requested, the following hello_jsp.java Servlet,java will be created and compiled: tmp ├── auth ├── hello.war │   └── … Read more

Installing the Business Central on WildFly

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There are two options to install jBPM Business Central on WildFly. You can either download the jBPM bundle distribution (https://www.jbpm.org/download/download.html) which includes WildFly, the Kie Server and the Business Central or you can install the single components on the top of an existing WildFly distribution. This tutorial cover the latter option. Download required server and … Read more

How to code EJB interceptors like a pro

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EJB 3 interceptors provide the bean developer with fine grained control over the method invocation flow. In this tutorial we’ll see how to code server side EJB Interceptors and how to define Global EJB server side interceptors (WildFly 18 or newer). An interceptor is a method that you can interpose in the invocation flow of … Read more

Profiling Jakarta EE Applications with NetBeans Profiler

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In this article we will learn how to profile Java/Jakarta EE applications with NetBeans built-in profiler tool and how to instrument WildFly application server for this purpose. There are several vendor tools for profiling Java applications such as JProfiler or YourKit. In the list of opensource tools, a valid option is NetBeans Profiler which lets … Read more

Using Elytron Credential Stores in WildFly

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The elytron subsystem allows using Credential Stores as secure storage for your credentials. Using a credential store is a replacement of the standard password vault mechanism to store passwords and other sensitive strings. Credential stores allow for easier credential management within WildFly, without having to use an external tool. It is however still possible to … Read more

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