Java
This session is intended to take a deep dive into Eclipse OpenJ9 GC internals and performance. It first lays out the basics of GC and builds upon them to explore GC performance. The presentation will heavily focus on GC parallelism and Adaptive Threading, a new innovative GC optimization for self-tuning parallelism to minimize GC pause times.
Java
So you've built/found the perfect ML Model, and now you want to deploy it into production while seamlessly integrating with your Enterprise Java Application, how do you go about it?
This talk will tell you all the steps and best practices around Machine Learning Software Engineering (MLEng) in the Cloud using Java technologies. In particular, we will cover :
Java
11 years after I presented "Bye-bye NPE" at EclipseCon, we still see null pointer exceptions, the tooling to detect these already during compilation isn't complete, yet, and no standard has emerged.
In this presentation I will discuss some of the reasons why this is hard, harder than we thought initially and harder than it should be.
Java
Integration tests are essential to test server application interaction with infrastructure services like databases, message brokers or others. The Testcontainers framework makes it easy to set up all infrastructure services your application code needs by using Docker images during the test execution. By doing so, integration tests can run independent of any external infrastructure and are more robust and faster to execute.
Java
Jakarta EE 10 brings a number of updates not only in the Jakarta REST Specification but in other specifications such as Microprofile, too. The Session briefly informs about the new features in Eclipse Jersey, by examples. Jakarta REST 4.0 (planned for Jakarta EE 11) is another major release of the Specification, and unlike the smaller changes in Jakarta 3.1, these changes are rather significant and backward incompatible.
Java
In this session, we will specifically look at the tooling available as part of the development kit that assist in understanding the composition of our legacy application as well as help us work with the semantics of modularity feature. The aim of this session is to help audience to be able to use the in-built tooling effectively towards Java 11 migration.
Java
zlib/zip compression is a de-facto standard and available in Java since JDK 1.1. In this talk you'll hear what it takes to maintain a third-party library like zlib in OpenJDK, how alternative zlib implementations have considerably increased de-/compression speed, how subtle behavioral differences in various zlib implementations can affect compatibility and finally how you can leverage these new implementations to boost your de-/compression intensive Java applications.
Java
Eclipse JDT (Java development tools) is a very interesting piece of code, but it is not always easy to reuse it outside of Eclipse.
Since 2017 the jars are published on Maven Central, in a maven friendly way (no Maven Tycho required). This is a very good first step.
This talk will discuss two main pain points:
1) Consuming the jars directly from Maven Central
In the Eclipse world we are used to have "P2 Update Site" and "Target platform"… Those do not exist in the plain Maven world (there is only one repository: Maven central).
Java
For quite a long time we were forced to make a choice - performance vs. simplicity. Either use a complicated and performant reactive code, or use simple, yet limited blocking approach.Thanks to project Loom in JDK, the paradigm can shift once more even for applications that require high concurrency. I will introduce Helidon Nima - new microservices framework which is built on top of a server designed for Loom with fully synchronous routing that can block as needed, yet still provide high performance under heavy concurrent load.
Java
Yes, GlassFish is alive.
In the session you will learn what we have done to it, so you should not be afraid to use it in your projects any more. GlassFish passes more than 45000 tests and we still think it is not enough, but first we started transforming all those old tests to current technologies to make them faster, shorter, more informative and usable as examples. We also introduced some tools to control the code quality and as you probably know, GlassFish development continues to live with Jakarta EE projects. While I am writing these lines there's yet much more to come ...
Java