java

Interview with Edson Yanaga, Java Champion and Director of Developer Experience @Red Hat during J On The Beach 2016. Malaga, Spain. May 2016.

Interview with Java Champion Kirk Pepperdine from Kodewerk during J On The Beach 2016. Malaga, Spain. May 2016.

Java 9 is currently scheduled to become generally available in less then 1 year. Perhaps now is a good time to have a closer look at language proposals and API changes in Java 9. There are over 70 proposals targeted to Java 9, we will have a looks at some key ones, starting with java modularity. We will look at some breaking changes and ways to develop both short and long term solutions for adoption of new upcoming version of Java.

Modern graphics processing units (GPUs) are efficient general-purpose stream processors. Learn how Java can exploit the power of GPUs to optimize high-performance enterprise and technical computing applications such as big data and analytics workloads. This presentation covers principles and considerations for GPU programming from Java and looks at the software stack and developer tools available. It also presents a demo showing GPU acceleration and discusses what is coming in the future.

The announcement that sun.misc.Unsafe will disappear in Java 9 created a huge buzz in the community and lots of people didn’t agree with the idea. While Unsafe have to go away eventually the time in not yet and Oracle finally agreed on that. To replace sun.misc.Unsafe we need a clear set of APIs to achieve the same behavior and performance. VarHandle, Foreign Function Calls, Generic Specialization (Templates) and other proposals try to solve this misery and to replace certain aspects of our beloved class. This talk will introduce the alternatives and explain how and why they will help to replace sun.misc.Unsafe. It uses basic examples to demonstrate what a Post-Apocalyptic Unsafe World will look like.

What are some of the performance implications of using lambdas and what strategies can be used to address these. When might be want an alternative to using a lambda and how can we design our APIs to be flexible in this regard.What are the principles of writing low latency code in Java? How do we tune and optimize our code for low latency? When don’t we optimize our code? Where does the JVM help and where does it get in our way? How does this apply to lambdas? How can we design our APIs to use lambdas and minimize garbage?

The Garbage First Garbage Collector is scheduled to be the default collector in Java 9. Although it's supposed to be more self-tuning than any previous collector. tuning it can be very daunting. On the surface it looks like an evacuating generational collector but in reality it is very different. In this talk we'll deep dive into G1 and then use case studies to get an idea of how one might configure this collector to improve both application and GC throughput using information found in the GC logs.

Interview with Tim Ellison from IBM's Java Tech Centre during J On The Beach 2016.

The accidental tourist guide to JMC/JFR - Kirk Pepperdine What you need to know about Lambdas - Jamie Allen Code battle Java Vs. Scala

Developing reliable data acquisition, processing and control modules for mission critical systems - as they run at CERN - has always been challenging. As both data volumes and rates increase, non-functional requirements such as performance, availability, and maintainability are getting more important than ever. C2MON is a modular Open Source Java framework for realising highly available, large industrial monitoring and control solutions. It has been initially developed for CERN’s demanding infrastructure monitoring needs and is based on more than 10 years of experience with the Technical Infrastructure Monitoring (TIM) systems at CERN. Combining maintainability and high-availability within a portable architecture is the focus of this work. Making use of standard Java libraries for in-memory data management, clustering and data persistence, the platform becomes interesting for many Big Data scenarios.