Hotels.com Java Meet Up

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At Hotels.com Java is a core part of our technology stack running through everything we do. Our Hotels.com tech teams are always keen to share what they do so others can learn from them’ and have others come in and speak so we can learn from them too.
Our next Java meetup is going to be held on Wednesday 24th January at the Hotels.com offices in Angel. On the evening we have a wide range of talks, including from Jack Shirazi, Andrzej Czarny and Simon Maple. There will also be food, drink and lots of opportunity to chat to fellow engineers keen to learn and share.
Agenda:
6pm
Door open for Food, Drinks and Networking
6 45pm
First Speaker – Andrzej Czarny
 Andrzej Czarny is a Senior Software Engineer at Ocado Technology. His work is mostly focused on real time performance of warehouse control systems. He is involved in creating testing frameworks and Continuous Integrations for multiple teams. His main area of expertise is Java and concurrency.
 "A practical approach to Java Memory Model"
Java Memory Model is an interesting area of multi-thread programming. It describes how threads interact through memory and what behaviours are allowed in concurrent execution. Most of java developers are familiar with mutual exclusion and synchronized keyword but sometimes we forget that beside mutual exclusion we also have to care about memory visibility.
The talk will introduce number of examples to help understand JMM. It will use OpenJDK Java Concurrency Stress tests framework (JCStress) to validate the results.
 
7 30pm
Second Speaker – Jack Shirazi
Jack Shirazi works in the Performance and Reliability team at Hotels.com. He is the founder of JavaPerformanceTuning.com and author of Java Performance Tuning (O'Reilly), and has been an official Java Champion since 2005.
Jack has worked at all levels and all stages of IT projects in several industries including for real-time, low latency and highly scaled applications. As well as authoring his popular book and contributing to several other books, Jack has published over 60 articles on Java performance for various sites and magazines; and has published over 200 newsletters for JavaPerformanceTuning.com over 15 years, and with these newsletters published around 10,000 Java performance and memory related tips.
 “Become A Guru: How To Solve Java Memory Leaks In Under 10 Minutes”
I provide a consistent methodology for identifying whether you have a heap memory leak, analysing the memory to identify the leak, and determining the cause. I focus on heap leaks, which are the most common Java memory leaks. Yes, this talk will make you a guru.
 
8 15pm
Third Speaker – Simon Maple
 Simon is the Director of Developer Relations at ZeroTurnaround, a Java Champion since 2014, JavaOne Rockstar speaker in 2014, Duke’s Choice award winner, Virtual JUG founder and organiser, London Java Community co-leader and RebelLabs author. He is an experienced speaker, having presented at JavaOne, JavaZone, Jfokus, DevoxxUK, DevoxxFR, JavaLand, JMaghreb and many more including many JUG tours. His passion is around user groups and communities. When not traveling, Simon enjoys spending quality time with his family, cooking and eating great food.
 “ The Java eco-system: Past, Present and Future”
Over the past 5 years, RebelLabs has surveyed the Java eco-system asking about which tools and technologies are used to understand trends in our industry usage. This includes flame war topics such as IDEs, build tools and web frameworks to the adoption of Java SE and EE releases, Application Server, Database usage and much more. We'll look at the latest data we have (Present), the trends across the years since 2012 (Past) and our expectations for what we'll see in the upcoming years (Future). This session will have ignite talks to go through the data at a fast pace, followed by a deeper analysis of the data afterwards.
 
Seats are limited so please sign up soon!
 We look forward to seeing you there!

The Angel Building

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Hotels.com Java Meet Up

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