Java

Lesson Thumbnail
Lesson

Using Quarkus CRUD with Microsoft SQL Server on RHEL

Nagesh Rathod

Create containers with Podman using the Quarkus CRUD application, which uses Microsoft SQL Server (often called MS SQL) as the database running on Red Hat Enterprise Linux (RHEL).

15 minutes | Intermediate
coding shared image
Event

Devoxx Poland

During three days, 2.700 Devoxxians from 20 different countries attend Devoxx Poland including 100+ speakers and another 600K developers enjoy the presentations online, making Devoxx the biggest Java conference in Poland.

Fabric 8 Maven
Article

How to write tests with Fabric8 Kubernetes Client

Rohan Kumar

Learn how to effectively write tests for Kubernetes applications in Java using Fabric8 Kubernetes Mock Server and Fabric8 Kubernetes JUnit Jupiter extensions.

Coding shared image
Event

Jfokus

Jfokus will be held at Waterfront Congress Center in Stockholm, Sweden 6-8 February 2023. Monday 6 February is University Day with Deep dive half day talks and Hands-on labs in smaller groups. Tuesday 7 and Wednesday 8 February are Conference Days, with 6 parallels tracks, with focus on on Java, the JVM platform and open source technologies but also AI, Machine Learning, Big Data, Cloud, Web/HTML5, mobile platforms, Agile, NoSQL, DevOps and languages such as JavaScript, Scala, Kotlin and many more.

Featured image for Java topics.
Article

Where to learn about Java from Red Hat

Heiker Medina

Whatever Java topic you need to know about, Red Hat offers an introduction. This article gathers our most popular Java articles.

Best of 2022 image
Article

Top cloud and app services resources of 2022

Heiker Medina

In our roundup of the best content about Red Hat's cloud and app services, we highlight some of the most popular stories of the past year.

Featured image for Cryostat (was ContainerJFR) topics.
Article

Configure a pod security context with Cryostat Operator

Thuan Vo

With the introduction of new security context constraints, pods must be properly configured under the enforced security standards defined globally or on a namespace level to be admitted to launch. Learn how Cryostat Operator 2.2.0 accommodates these changes.

Featured image for Cryostat (was ContainerJFR) topics.
Article

Configure Cryostat RBAC mapping in Cryostat Operator 2.2.0

Thuan Vo

When deployed on Kubernetes or OpenShift, Cryostat uses a default permission configuration that maps Kubernetes resources to Cryostat-managed resources to authorize a user to perform certain actions. Since a single set of mappings does not always fit all, with Cryostat Operator 2.2.0, we allow this mapping to be configurable via the Cryostat custom resource.

Featured image for Cryostat (was ContainerJFR) topics.
Article

Cryostat 2.2 improvements: Revamped archives views and more

Max Cao

In the newest preview release for Cryostat 2.2, three new and updated views for archived JDK flight Recordings managed by Cryostat have been added to the web client, along with new recording filters and enhanced features for recording metadata and custom labels.

Page Thumbnail
Page

Milano Java User Group

Virtual threads will be very likely the next big game changer in Java, but what are the costs, and where are the gaps? This discussion will help you analyze and create your own set of rules regarding virtual threads.

Page Thumbnail
Page

Madrid Java User Group (JUG)

Refactor without tests and not die trying. One of the main reasons why a software project can get complicated is having code that is difficult to change. The secret to minimizing this is continuous improvement and technical excellence as a principle.