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Java

Unleash the Power of Open Source Java Profilers: Comparing VisualVM, JMC, and async-profiler

This article conveys the foundational concepts and different types of Open Source Java profilers. It allows you to choose the best-suited profiler for your needs and comprehend how these tools work in principle. The aim of a profiler is to obtain information on the program execution so that a developer can see how much time a method executed in a given period.

Johannes Bechberger
on Apr 13, 2023
Java

Migrate a RMI-Based Legacy Application to WebSocket

Technical debt, especially in enterprise software, is a relevant problem that developers recurrently have to face. This article provides a use case related to removing technical debt in a large enterprise application based on an old fashioned Remote Method Invocation (RMI) protocol, and migrating it toward modern cloud-aware communication technologies.

Bartolomeo Sorrentino
on Apr 05, 2023
Java

Rapid Startup of Your Cloud-Native Java Applications without Compromise

This article discusses the significance of startup time in cloud-native computing, highlighting challenges for JVM-based apps. It introduces Liberty InstantOn, which boosts startup times using checkpoint/restore technology, offering fast startup without compromising Java capabilities or facing static compilation trade-offs.

Tobi Ajila Thomas Watson
on Apr 01, 2023
Java

Billions of Messages Per Minute Over TCP/IP

Chronicle Wire offers an alternative way of transferring data between systems, delivering more messages, faster, than common JSON/XML approaches. This approach to data serialization improves both latency and throughput.

George Ball
on Mar 24, 2023
Web Development

Interactive Microservices as an Alternative to Micro Front-Ends for Modularizing the UI Layer

While microservices architectures are well established for the back-ends of software systems, the same cannot be said for front-ends. Interactive microservices are based on a new type of web API that Qworum defines, the multi-phase web API, where the endpoint calls may involve more than one request-response pair, also called a phase.

Doğa Armangil
on Mar 02, 2023
Architecture & Design

The Process of Creating Decentralized Apps (dApps)

A decentralized application has a different architectural approach; they are working on distributed ledger technology called blockchain, where there is no central point of failure nor third parties involved. A revolutionary and attractive technology for new opportunities. This article covers creating such applications and why they are needed, as well as challenges during implementation.

Ognyan Chikov
on Feb 22, 2023
Development

PHP 8 - Arrays, Variables, Operators, Exception Handling and More

In this article, we discuss new features brought by PHP 8 related to arrays, variables, operators, and exception handling. We also discussed some trait-, class-, and function-related features. This article concludes the PHP 8 article series.

Deepak Vohra
on Feb 13, 2023
Java

Article Series: Developing Apache Kafka applications on Kubernetes

Apache Kafka has integrations with most of the languages used these days, but in this article series, we cover its integration with Java. In this series, we also discuss how to provision, configure and secure an Apache Kafka cluster on a Kubernetes cluster.

Alex Soto
on Feb 06, 2023
Development

Article Series: PHP 8.x

PHP continues to be one of the most widely used scripting languages on the web with 77.3% of all the websites whose server-side programming language is known using it according to w3tech. PHP 8 brings many new features and other improvements, which we shall explore in this article series.

Deepak Vohra
on Jan 30, 2023
Java

Securing a Kafka Cluster in Kubernetes Using Strimzi

Deploying an Apache Kafka cluster to Kubernetes is easy if you use Strimzi, but that’s only the first step; you need to secure the communication between Kafka and the consumers and producers, provide RBAC to access topics, spread the secrets correctly to Kafka Connect components and all using a Kubernetes GitOps way.

Alex Soto
on Dec 30, 2022
Development

The Service and the Beast: Building a Windows Service that Does Not Fail to Restart

Windows Services play a key role in the Microsoft Windows operating system, and support the creation and management of long-running processes. When “Fast Startup” is enabled and the PC is started after a regular shutdown, though, services may fail to restart. The aim of this article is to create a persistent service that will always run and restart after Windows restarts, or after shutdown.

Michael Haephrati Ruth Haephrati
on Dec 28, 2022
Java

GraalVM Java Compilers Join OpenJDK in 2023, Align with OpenJDK Releases and Processes

The Community Editions of the GraalVM JIT and Ahead-of-Time (AOT) compilers will move to OpenJDK in 2023. They will align with OpenJDK releases and processes. Existing releases, GraalVM Enterprise Edition, and other GraalVM projects will not. GraalVM 22.3 provides experimental support for JDK 19 and improves observability. Project Leyden will standardize Java AOT compilation.

Karsten Silz
on Dec 21, 2022