- java-devroom - lists.fosdem.org

Talk proposal: Free OpenJDK Binaries: Where do I get them?
by Adam Farley8 06 Dec '18

06 Dec '18

Title: Free OpenJDK Binaries: Where do I get them? Abstract: A review of the most popular places to download a free OpenJDK Binary. What versions and variants are available? How do I get them? What testing is done? All these questions, and more, will be answered here. Includes sources such as AdoptOpenJDK, OpenJDK, RedHat, Amazon Corretto, Azul Zulu, etc. Recording: Sure. Speaker Bio:https://www.linkedin.com/in/adam-farley/ Best Regards Adam Farley IBM Runtimes https://www.linkedin.com/in/adam-farley/ Unless stated otherwise above: IBM United Kingdom Limited - Registered in England and Wales with number 741598. Registered office: PO Box 41, North Harbour, Portsmouth, Hampshire PO6 3AU

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Talk proposal: AdoptOpenJDK: Your One-Stop-Shop for OpenJDK Binaries
by Adam Farley8 06 Dec '18

06 Dec '18

Title: AdoptOpenJDK: Your One-Stop-Shop for OpenJDK Binaries Abstract: It's a bird, it's a plane, it's a modern CI build farm for churning out quality-checked OpenJDK binaries! Come and learn how this new community project produces OpenJDK binaries every day; where all versions, platforms, and variants are built, tested, and uploaded to a deployment-ready repository overnight. Want Java 10 with OpenJ9 on AIX or maybe Java 8 with HotSpot on macOS? AdoptOpenJDK can help! In a nutshell: this session covers the origins of AdoptOpenJDK, how the build pipeline works, and how we resolved some common CI problems. Come for the talk, stay for the jelly babies. Recording: Sure. Speaker Bio:https://www.linkedin.com/in/adam-farley/ Best Regards Adam Farley IBM Runtimes https://www.linkedin.com/in/adam-farley/ Unless stated otherwise above: IBM United Kingdom Limited - Registered in England and Wales with number 741598. Registered office: PO Box 41, North Harbour, Portsmouth, Hampshire PO6 3AU

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Talk proposal: Call a getter faster with reflection, MethodHandles or LamdbaMetaFactory (plain text version)
by Geoffrey De Smet 03 Dec '18

03 Dec '18

[My apologies for the duplication, the first mail when out in html instead of as plain text] Hi all, I'd like to submit this talk for fosdem 2019: Title: Call a getter faster with reflection, MethodHandles or LamdbaMetaFactory Abstract: What is the fastest way to read a getter from a Java class without knowing the class at compilation time? Java frameworks often do this. A lot. And it can directly influence their performance. So I’ve benchmarked different approaches, such as reflection, method handles, LamdbaMetaFactory and code generation. Recently I updated them for JDK 11. Especially MethodHandles have an interesting catch 22 situation, which I'll explain during the presentation. Brief bio: Lead of OptaPlanner, the open source constraint solver in Java Microblog URL: https://twitter.com/GeoffreyDeSmet Blog URL: https://www.optaplanner.org/blog/ -- With kind regards, Geoffrey De Smet

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Talk proposal: Call a getter faster with reflection, MethodHandles or LamdbaMetaFactory
by Geoffrey De Smet 03 Dec '18

03 Dec '18

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Talk Proposal: srcdeps: Don't let dependencies dictate your life!
by Peter Palaga 03 Dec '18

03 Dec '18

Hi *, my submission: = srcdeps: Don't let dependencies dictate your life! == Abstract Your dependency does not merge or release your fix fast enough? Or you want a reliable continuous integration with your framework/platform? Then stop waiting for releases and start using source dependencies with Maven & Gradle! srcdeps brings the concept of source dependencies as known in Ruby’s blunder or Scala’s sbt to the field of Java and its build tools. With srcdeps, a Maven or a Gradle project can define its dependencies in terms of specific source commits that are built by srcdeps "on the fly" when they are requested. We will explain how this can save time in testing and integration or how it allows to fix third-party code. In a short live demo, we will show how to switch from a released dependency to a source dependency in a Maven project. == Note for the organizers This is a shortened version of a talk I already presented on a few conferences. Here are the slides of the full version: http://ppalaga.github.io/presentations/181011-jcon-duesseldorf/index.html#/ == Recording Yes, I accept recording me on audio and/or video under a CC-BY-2.0 license == Bio Senior engineer for JBoss Fuse at Red Hat. Earlier worked on JBoss EAP, Hawkular and other Red Hat Middleware projects. The author of srcdeps and contributor to several Maven and Gradle plugins. == URLs https://twitter.com/ppalaga http://ppalaga.github.io

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Talk Proposal: ~1 sec. Kubernetes redeployments with Camel K
by Peter Palaga 03 Dec '18

03 Dec '18

Hi *, my submission: = ~1 sec. Kubernetes redeployments with Camel K == Abstract Interested in seeing your Camel application redeployed on Kubernetes ~1 second after you have changed your Java code? Camel K is a new subproject of Apache Camel that aims at simplifying and speeding up the development process. In this talk we will present a few tricks that helped us to achieve that: custom Kubernetes Operator, custom Kubernetes resources, reuse of build images based on the set of dependencies and use of a ConfigMap to mount the changing bits to a container. We'll explain the underlying concepts and run a live demo! == Recording Yes, I accept recording me on audio and/or video under a CC-BY-2.0 license == Bio Senior engineer for JBoss Fuse/WildFly Camel at Red Hat. Earlier worked on JBoss EAP, Hawkular and other Red Hat Middleware projects. The author of srcdeps and contributor to several Maven and Gradle plugins. == URLs https://twitter.com/ppalaga http://ppalaga.github.io

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Free Java Devroom deadline extended!
by Mario Torre 30 Nov '18

30 Nov '18

Hello all! I hope you are recovering from the Black Friday rush that generated almost as many emails as there are OpenJDK mailing lists ;) To celebrate this surreal new found quiet, we decided to send you another email with attachments: the deadline extension for the Java DevRoom. This offer will expire on the 12th of December 2018, one minute before midnight: 23:59 CET, and there won't be any further extension after that, so don't let the date pass without submitting a CFP, or all your unread emails will turn into pumpkins[1]. More informations, as always, can be found on the following link, or at least until that one also turns into something else ;) https://wiki.debian.org/Java/DevJam/2019/Fosdem/CallForParticipation Cheers, Mario [1] Or may not, well, that's a fine art, but it's not bug free. The pumpkins I mean. -- pgp key: http://subkeys.pgp.net/ PGP Key ID: 80F240CF Fingerprint: BA39 9666 94EC 8B73 27FA FC7C 4086 63E3 80F2 40CF Java Champion - Blog: http://neugens.wordpress.com - Twitter: @neugens Proud GNU Classpath developer: http://www.classpath.org/ OpenJDK: http://openjdk.java.net/projects/caciocavallo/ Please, support open standards: http://endsoftpatents.org/

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FOSDEM proposal: Tested for Business: An Open and Transparent Quality Kit
by Shelley Lambert 29 Nov '18

29 Nov '18

Title: Tested for Business: An Open and Transparent Quality Kit Abstract: With the proliferation of OpenJDK binaries for a developer or a business to choose from, one factor in determining the selection is quality. How do you know your choice is up to snuff? The AdoptOpenJDK Quality Kit is an open and transparent verification story for OpenJDK binaries. A robust and adaptable test kit that can be utilized by any OpenJDK implementor, and represents the quality bar required by large-scale customers in enterprise environments. We test multiple freely available JDK implementations at AdoptOpenJDK and continue to refine this suite of tests to give the community access to high-quality binaries. Beyond a frank discussion starter on the criteria by which we measure quality, this talk summarizes the real quality requirements of enterprise customers and presents a compelling story for verifying and/or selecting your OpenJDK implementation. Recording: acceptable under CC-BY-2.0 license Speaker Bio: Shelley Lambert is the Test Lead for IBM Runtime Technologies team. She and her team test open and freely available JDK implementations and have delivered the test strategy, test code base, and test frameworks into the Eclipse OMR, Eclipse OpenJ9 and AdoptOpenJDK projects. She is a committer at OpenJ9 and AdoptOpenJDK and draws stories and lessons from her experiences in the open projects where she is most active. Blog URL: https://8thdaytesting.com/

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Talk Propsal: JIT in the cloud
by Irwin D'Souza 29 Nov '18

29 Nov '18

Hi, Please find below a submission for a talk. Title: Making the JIT part of the cloud Abstract: Many language runtimes like the JVM rely on JIT compilation to improve application performance, but JIT compilers actively compete with applications for CPU and memory resources. Because of this, a JIT compiler's activities may hinder application throughput and create performance hiccups that can affect quality of service while also complicating resource provisioning. On top of that, it takes a while even for the best JIT compilers to fully compile the performance critical methods of an application to deliver the steady state performance we all expect from the JVM. An approach we are exploring is to decouple the JIT compiler from the rest of the JVM so that JIT compilation can operate as a separate, remote service. This approach opens up the possibility of an elastic, cloud based service offering JIT compilation for many applications, languages, and even different architectures simultaneously. In this talk we will present our experience building an open source JIT-as-a-service prototype based on the Eclipse OpenJ9 JVM. We will discuss some of the engineering challenges we encountered, demonstrate the advantages we've seen thus far, and present performance data for enterprise grade Java EE benchmarks. Recording me on audio and/or video: Acceptable under a CC-BY-2.0 license (DEFAULT) Brief Bio: I'm a JIT Compiler Developer for Eclipse OpenJ9 / Eclipse OMR working in an enterprise context for the last five years. Regards, Irwin D'Souza

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Talk Proposal
by Irwin D'Souza 28 Nov '18

28 Nov '18

Hi, Please find below a submission for a talk. Title: Dynamic AOT: A peek under the hood Abstract: There is now a growing interest in Ahead Of Time (AOT) compilation technologies in the Java ecosystem. AOT compilation is the natural counterpart of Just In Time (JIT) Compilation because of its potential to enable faster application startup and rampup, while minimizing the CPU and memory costs that come with a JIT compiler. However, Ahead of Time compilation for a dynamic language such as Java offers a suite of complex problems that make it very difficult to AOT compile Java methods as well as a JIT compiler can. In this talk, we'll focus on the "dynamic AOT", or cached JIT code, technology that is used transparently by the open source Eclipse OpenJ9 JVM. We'll present how dynamic AOT works and cover some of the pros and cons of this approach to Ahead of Time compilation. Recording me on audio and/or video: Acceptable under a CC-BY-2.0 license (DEFAULT) Brief Bio: I'm a JIT Compiler Developer for Eclipse OpenJ9 / Eclipse OMR working in an enterprise context for the last five years. Regards, Irwin D'Souza

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