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The London Java Community (LJC) is a group of Java Enthusiasts who are interested in benefiting from shared knowledge in the industry. Through our forum and regular meetings you can keep in touch with the latest industry developments, learn new Java (& other JVM) technologies, meet other developers, discuss technical/non technical issues and network further throughout the Java Community.

FAQ

What is the LJC?

What goes on in the LJC?

Who can join?

Is there a fee to Join, is there a fee for the events?

How do I join?

Do you have to go to every presentation?

Where are the events held?

Can I read some member feedback?

What is the LJC?

The LJC is an official Java User Group for developers based in London. It was founded in November 2007 and since then has grown to over 5000 members and is now the biggest Java User Group in the UK.

What goes on in the LJC?

We run a variety of regular events ranging from social events and technical presentations to our full day unconference. On top of the events we run prize draws and have an active mailing list/forum. We support the Graduate Development Community in London and promote London based Open Source Software projects where possible.

Who can join?

Membership is restricted to Java developers working in or around London (or those hoping to train in Java, or relocate to London). Membership will not be granted to those involved in the recruitment industry.

Is there a fee to Join, is there a fee for the events?

It’s completely free to join and 99% of our events are completely free. The only event which is charged for is the Unconference, the charge is minimal and it is there to cover refreshments on the day.

How do I join?

Just click on the link on this page to sign up to the mailing list, you'll hear of all of our latest news and events and can take part in the monthly prize draws.

Do you have to go to every presentation?

Absolutely not – it’s completely up to you which events you attend and which you don’t. Every event attracts a different crowd.

Where are the events held?

Europe's Premier technical training company, Skills Matter (Barbican) sponsor most of our events by providing the venue.

Can I read some member feedback?

We have been collecting feedback for the last few years from our members you can read it here: https://www.meetup.com/Londonjavacommunity/about/comments/?op=all

For further information see our blog here: https://londonjavacommunity.wordpress.com/s... (https://londonjavacommunity.wordpress.com/sign-up/) Do not hesitate to get in touch with any questions.

Barry Cranford
Founder of London Java Community

Nadchodzące wydarzenia (4+)

LJC: Developer Productivity Engineering - Next Big Thing in Software Development

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About the event

It's 2022, and as IDC predicted in October of 2020, 65% of the global GDP has been digitally transformed. Two-thirds of the products and services that you pay for are driven by software, and the quality, cost and time to market of your software products determine the fate of your business. There has never been a more important time to foster developer productivity, but many of our methods have not evolved.

In this keynote style talk you will learn why DPE is the most important development in the software engineering world since the introduction of Agile and DevOps concepts and tools. DPE is a new software development practice that uses acceleration technologies to speed up the software build and test process and data analytics to improve developer efficiencies by as much as 10x. The ultimate aim is to achieve faster feedback cycles, more reliable and actionable data, and a highly satisfying developer experience.

Justin Reock, Field CTO and Chief Evangelist at Gradle is pioneering DPE as a practice and set of technologies and is one of the world's leading advocates. Specifically, Justin will provide an overview of the key concepts and tools, business impact on key business objectives like time-to-market, cost and quality, the business case for DPE, and the role of AI/ML in DPE moving forward.

Speaker Bio

Justin Reock is the Chief Evangelist and Field CTO of Gradle Enterprise, and is an outspoken blogger, speaker, and free software evangelist. He has over 20 years of experience working in various software roles and has delivered enterprise solutions, technical leadership, and community education on a range of topics. After a fifteen year career in coding, Justin now focuses on helping businesses create better throughput by optimizing the developer experience. Much of his work can be found online including lectures, keynotes, blogs, and other publications.
This event is organised by RecWorks on behalf of the London Java Community.

The London Java Community is sponsored by Sonatype, Jfrog and Snyk

You can see our latest jobs here

You can see our privacy policy here

Continue the conversation at our Slack Group: https://londonjavacommunity.slack.com

Sign up here if you're not a member: https://bcrw.typeform.com/to/IIyQxd

LJC Virtual Meetup: Lunchtime Lightning Talks

Potrzebne miejsce

*This is a placeholder for the event being run on Eventbrite. Please sign up with your full name at https://www.eventbrite.co.uk/preview?eid=371113960847/

We're back with our 47th LJC Lunchtime Lightning Talks

The first part will be a series of lightning talks (5-7 minutes) on a variety of topics.

The second part will be a discussion on tech speaking.

We aim to have five speakers at each event to provide a variety of topics and this time we are pleased to be joined by:

We will keep it very light (pardon the pun) and hopefully it will be a bit of fun before the weekend to enjoy over your lunch hour.

As we’ve often talked about, lightning talks are a great opportunity to try, test or hone your speaking and presentation skills. They are usually under 7 minutes, with 2 minutes of Q+A.

If you would like to be part of our Lightning Talks please email [masked] for more information.

This event is organised by RecWorks on behalf of the London Java Community.

The London Java Community is Sponsored by Snyk, Jfrog and Sonatype

You can see our latest jobs here: https://recworks.co.uk/java-developer-jobs-london/.

You can see our privacy policy here: http://recworks.co.uk/privacy-policy

Continue the conversation at our Slack Group: https://londonjavacommunity.slack.com

Sign up here if you're not a member: https://bcrw.typeform.com/to/IIyQxd

LJC: Start Hunting the Bugs - Mutation Testing with Sven Ruppert

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*** This is a placeholder for the event being run on Eventbrite. Please sign up with your full name at https://www.eventbrite.co.uk/e/363310209617***

About the event

JUnit is a well-known tool for java developers in the area of TDD. Here it has become accepted, that CodeCoverage can be measured. In this case we distinguish between coverage on the level of classes, methods and rows. The goal is to get the CodeCoverage as high as possible on the row level, but not higher than necessary. What exactly does it mean? A CodeCoverage of appr. 75% on the row level is very good and can already provide a basis. But what does this figure say?

In this talk we will deal with the term Mutation Testing and show the practical ways of use. How can the coverage be defined and what can be achieved? How can it be integrated into an existing project and what should be considered while running a test? Can we use it for UI´s?

Speaker Bio

Sven Ruppert - Developer Advocate at JFrog

Sven spent almost 20 years as a consultant worldwide in automotive, aerospace, insurance, banking, UN and WorldBank before joining JFrog as a developer advocate. Sven has been giving lectures at international conferences and regularly publishing online and in classic magazines and books for nearly ten years. As a developer advocate for JFrog, Sven deals with DevSecOps, cybersecurity and cyberdefense, and traditional developer topics such as Core Java/Kotlin, mutation, and distributed unit testing.

This event is organised by RecWorks on behalf of the London Java Community.

The London Java Community is sponsored by JFrog

You can see our latest jobs here

You can see our privacy policy here

Continue the conversation at our Slack Group: https://londonjavacommunity.slack.com

Sign up here if you're not a member: https://bcrw.typeform.com/to/IIyQxd

LJC: Understanding HotSpot JVM Performance with JITWatch

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*** This is a placeholder for the event being run on Eventbrite. Please sign up with your full name at https://www.eventbrite.co.uk/e/373135437137***

About the event

Peak Java runtime performance depends on the HotSpot JIT compilers making the best optimisations of your program as it executes. In this talk I'll explain how the JVM decides what optimisations to make and how you can understand and visualise them in the free open-source tool JITWatch.

Speaker Bio

Chris Newland has been coding in Java for more than 20 years, most of it in the market data and financial services industry. He has written several articles on Java performance for Oracle Java Magazine and co-authored the book Optimizing Java with Ben Evans and Jim Gough.

The London Java Community is sponsored by Sonatype, Jfrog and Snyk

You can see our latest jobs here

You can see our privacy policy here

Continue the conversation at our Slack Group: https://londonjavacommunity.slack.com

Sign up here if you're not a member: https://bcrw.typeform.com/to/IIyQxd

Minione wydarzenia (855)

LJC Virtual Meetup: Lunchtime Lightning Talks

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