F.Marchioni

How to configure the HeapDumpOnOutOfMemoryError parameter in Java

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This article will teach you what is the usage of the HeapDumpOnOutOfMemoryError JVM parameter and how to configure it on an application server such as JBoss EAP or WildFly. HeapDumpOnOutOfMemoryError made simple The JVM parameter “-XX:+HeapDumpOnOutOfMemoryError” captures OutOfMemoryError instances that occur due to memory exhaustion in the Java heap space. When the Java Virtual Machine … Read more

HelloWorld JPA application

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Welcome to our JPA hello world tutorial, where we’ll guide you through the basics of Java Persistence API (JPA).  Follow along as we demonstrate step-by-step instructions, best practices, and practical examples to ensure you grasp the fundamental concepts of JPA programming. Let’s dive into this comprehensive tutorial and unlock the power of JPA for your … Read more

Solving java.net.BindException: Address already in use: JVM_Bind

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the “java.net.BindException: Address already in use: JVM_Bind” error is a common challenge when working with Java applications. This error indicates that another process is using the network address and port, preventing your application from binding to it. In this tutorial, we will explore effective solutions to overcome this error and get your Java application up and running smoothly.

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Getting started with Decision Models (DMN)

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The Decision Model and Notation (DMN™) is a modelling language notation created by OMG for the specification of business decisions and business rules. In this tutorial we will have an overview of what is DMN and which are the key constructs of this language that you can use to model your Decisions that drive your business.

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How to integrate JQuery Ajax and REST Services

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In this tutorial, we will explore how to use jQuery and AJAX to interact with a REST service. AJAX (Asynchronous JavaScript and XML) allows us to send and receive data from a server asynchronously without the need to reload the entire page. With the help of jQuery, a popular JavaScript library, we can simplify and … Read more

How to solve the issue JDBCConnectionException: could not extract ResultSet

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The JDBCConnectionException with the message “could not extract ResultSet” is a common exception encountered in Java applications that interact with databases. This article aims to explore the possible root causes of this exception and provide troubleshooting steps to help you resolve the issue. Root Causes of JDBCConnectionException: Could Not Extract ResultSet Troubleshooting Steps Conclusion The … Read more