May, 2023

• 22 May

  Celebrating 20 Years of NLJUG: A Milestone for the Dutch Java User Group

  

  The NLJUG, the premier community for Java users in the Netherlands, is thrilled to announce its 20th anniversary, marking two decades of promoting knowledge sharing, networking, and collaboration within the Java ecosystem. Since her inception, the NLJUG has been a driving force behind the growth and success of Java development in the country, providing a platform for professionals to connect, …

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• 22 May

  Foojay Podcast #23: Java Profiling and Performance

  How do you get the maximum performance out of your Java application? And how to use profiling to find the bottlenecks? Let’s learn all about it in this podcast, with Heinz Kabutz, Marcus Lagergren, Chris Newland, and Frank Delporte! Java profiling is a crucial technique for measuring and improving the performance of applications. It helps identify bottlenecks, memory leaks, and …

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• 22 May

  FinOps: Tim O’Brien at Walmart

  FinOps and Cloud Cost Management, what’s it all about and how does it impact us as developers and others who are close to the code? In this series on Foojay.io, you’re introduced to FinOps practitioners around the world, focused on how they have gradually found themselves, their technology and their organization in the FinOps space. Tim O’Brien is Senior Director …

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• 19 May

  Mastering the Art of Controlling the JIT: Unlocking Reproducible Profiler Tests

  In my last blog post, I hinted Using Async-Profiler and Jattach Programmatically with AP-Loader, that I’m currently working on a test library for writing better profiling API tests. The library is still work-in-progress, but it already allows you to write profiling API tests in plain Java: private int innerASGCT2() { new Tracer().runASGCT().assertTrue( Frame.hasMethod(0, “innerASGCT2”, “()I”), Frame.hasMethod(1, “testRunASGCT2”)); return 0; } …

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• 19 May

  Rolling Binary Trees: A Guide to Common Design Patterns in Java

  Introduction Binary trees are fundamental data structures, ubiquitous in computer science and software engineering. We use them to represent hierarchical data and implement more complex data structures, such as search trees, syntax trees, cryptographic hash trees, space partitioning trees, heaps, and so on. Common binary tree operations include insertion, deletion, traversal, searching, and rotation. A relatively uncommon and unexplored operation …

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• 18 May

  Enriching Kafka Applications with Contextual Data

  Developing high-performance large-stream processing applications is a challenging task. Choosing the right tool(s) is crucial to get the job done; as developers, we tend to focus on performance, simplicity, and cost. However, the cost becomes relatively high if we end up with two or more tools to do the same task. Simply put, you need to multiply development time, deployment …

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• 17 May

  Using Pausers in Event Loops

  Typically in low-latency development, a trade-off must be made between minimising latency and avoiding excessive CPU utilisation. This article explores how Chronicle’s Pausers can be used to automatically apply a back-off strategy when there is no data to be processed, providing an excellent balance between resource usage and responsive, low-latency, low-jitter applications. Description of the Problem In a typical application …

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• 16 May

  Write Once, Run Embedded in any IDE

  Having written many Java GUI applications, I thought it would be cool to run them embedded in IntelliJ IDEA, Eclipse and NetBeans. I didn’t want to write three plugins per application so I came up with this solution. The embedded panel criteria To convert my Java Swing applications to run embedded in an IDE, I had to put the user …

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• 16 May

  Reduce Java Application Startup and Warmup Times with CRaC

  Now developers can try CRaC for themselves. Today Azul announces the general availability of Azul Zulu Builds of OpenJDK for Java 17 with CRaC support in x86, 64-bit configurations. When a Java application runs, the JVM goes through the process of loading, initializing, and optimizing the code used by the application, including libraries, frameworks, and other components to reach the …

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• 16 May

  Announcing “Java Unscripted: An Asynchronous Exploration of Excellence”

  ITL;DR Introducing “Java Unscripted,” a series featuring interviews with Java industry experts. We aim to inspire and guide new developers with these insights. Interested in participating? Fill out our Interview Participation Form. Let’s share your story with our community! In a rapidly evolving world of technology, insights from industry luminaries can act as a beacon for those looking to navigate …

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