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This Blog post will look at some proverbial operations on List data structure and make some comparis…

In this short introductory demo we will show you how to start Payara Micro and demonstrate how simple it is to use its dynamic clustering feature.

Spring Framework 5: Learn Spring Framework 5, Spring Boot 2, Spring MVC, Spring Data JPA, Spring Data MongoDB, Hibernate

Prior to JDK8 class metadata and constants would live in an area called the “permanent generation”, contiguous with the Java heap. One problem was that If the class metadata size is beyond the allocated bounds your app would run out of memory.With the advent of JDK8 we no longer have PermGen. The space where it was held has now moved to native memory to an area known as the “Metaspace”.

When implementing distributed systems, client-server architectures and simple applications with network related functionalities, everything is fine when we’re in the development or in the testing stage because the network is reliable and the communicating systems are not as stressed as they are in production.But to sleep well we want to validate how resilient we have implemented our systems, how they behave when the network fails, the latency rises, the bandwidth is limited, connections time

As Airbnb builds more of its Frontend around Server Side Rendering, we took a look at how to optimize our server configurations to support…

“I love writing authentication and authorization code.” ~ No Java Developer Ever. Tired of building …

A developer looks at the new Vaadin 10 web framework, concluding that it is an excellent experimental space for new ideas and approaches to UI building.

A majority of Java devs are happy with the Apache NetBeans (incubating) 9.0 release. We look at how they feel about the features & tools in this new release

Java example to convert JSON to Java Object. You can unmarshal JSON String to Object or JSON file to Object, both. This example uses MOXy along with JAXB to unmarshal JSON to Java object. MOXy implements JAXB allowing developers to provide their mapping information through annotations as well as provide many rich features which JAXB …

The following code, I am confused about what would happen when 2 threads compete the lock for map.get(k). When thread A wins, it makes map.get(k) null and the second thread would get a synchronized…

Become an expert on Spring Boot developing a REST API and a Spring MVC Web application in 100 steps

This post looks at the top reasons for learning Java, including its open source, versatility, new additions, applications, development tools, and more.

This blog is the source for news about major Java announcements and the Java community.

Learn to create XML schema document (xsd) from JAXB annotated Java classes using Eclipse IDE. 1) Add JAXB Annotations to Java Classes First step is to add annotations such as @XmlRootElement, @XmlAccessorType and @XmlElement etc. to your Java classes. 2) Generate XSD from JAXB Classes 2.1) Navigate to Eclipse Option 2.2) Select location for generated …