LJC - London Java Community

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 meet other developers, discuss technical/non technical issues and network further throughout the Java Community.

We arrange and promote regular events throughout the group including free seminars from Java Champions in London to discuss the latest market trends, usually followed by a drink at the local pub.

Our members have also benefited from offers and reduced rates at conferences.

Membership is completely free - we currently have over 400 members and are eager to grow please spread the word further about this group to anyone that you think may be interested.

Do not hesitate to get in touch with any questions or feedback.

Barry Cranford Organiser of London Java Community

Events coming up

We don't have any upcoming events for this user group. Do you know this group? If so, why not submit a future event? We also support iCal, EventBrite and Meetup feeds.

Past events

  • OpenJDK Warnings Hack Day

    Mon, 23 Apr 2012, 17:30 - 19:30 in , United Kingdom

    There are still thousands of compiler warnings in the OpenJDK! Come join us for an evening of hacking on Java the language itself, removing those annoying compiler warnings and helping make Jaba build faster for everyone. Along the way you'll learn about the OpenJDK project, how the community works and the sort of strict diligence you need to apply for even the most seemingly simple fixes.

  • Introduction to Git and Gerrit

    Thu, 20 Oct 2011, 17:30 - 19:30 in London, United Kingdom

    Introduction to Git and GerritPlease note this is an LJC event. SkillsMatter are hosting this event and are handling the attendance - it is essential that you confirm your place at this link: event will introduce Git, a highly performant distributed version control system, and compare and contrast to centralised version control systems such as CVS, SVN, ClearCase, and Perforce.

  • The London Developer Sessions - New Venue - See Below

    Tue, 18 Oct 2011, 17:30 - 19:30 in London, United Kingdom

    This is our monthly social gathering, which incorporates members of The London Java Community and Graduate Development Communities. This will be a chance to meet with some senior developers to find out what they would advise about getting into the industry. It is an informal social evening with no agenda - most of the evening will be spent having ad-hoc informal discussions in small groups.We have a new venue this month - The Slug and Lettuce, 19/20 Hanover Street, London

  • Understanding the Disruptor, a Beginner's Guide to Hardcore Concurrency

    Tue, 4 Oct 2011, 17:00 - 19:00 in London SW3 3XB, United Kingdom

    Understanding the Disruptor, a Beginner's Guide to Hardcore ConcurrencyThe Disruptor is new open-source concurrency framework, designed as a high performance mechanism for inter-thread messaging. It was developed at LMAX as part of our efforts to build the world's fastest financial exchange. Using the Disruptor as an example, this talk will explain of some of the more detailed and less understood areas of concurrency, such as memory barriers and cache coherency.

  • Online Monthly Prize Draw: Packt Publishing

    Fri, 30 Sep 2011, 11:00 - 13:00 in There will be no physical meetup, United Kingdom

    Please note this is an online monthly prize draw and no actual meeting will take place.Packt Publishing are a unique publishing company specializing in highly focused books on specific technologies and solutions - please visit their site to find out more about them: www.packtpub.comEach month we run a promotion with Packt in which GDC members will be selected at random to receive free books. This month we are offering 2 GDC members the chance to win

  • The London Developer Sessions - New Venue - See Below

    Tue, 20 Sep 2011, 17:30 - 19:30 in London, United Kingdom

    This is our monthly social gathering, which incorporates members of The London Java Community and Graduate Development Communities. This will be a chance to meet with some senior developers to find out what they would advise about getting into the industry. It is an informal social evening with no agenda - most of the evening will be spent having ad-hoc informal discussions in small groups.We have a new venue this month - The Slug and Lettuce, 19/20 Hanover Street, London

  • Monthly Prize Draw: FREE JRebel license

    Sun, 1 May 2011, 11:00 - 13:00 in There will be no physical meetup, United Kingdom

    JRebel maps your project workspace directly to your running application. When a developer makes a change to any class or resource in their IDE the change is immediately reflected in the application, skipping the build and redeploy phases. For further information see their site: | | have two personal licenses of JRebel including their Enterprise Add-on (a combined value of $159 USD) to offer this month.

  • Online Monthly Prize Draw: Packt Publishing

    Sat, 30 Apr 2011, 11:00 - 13:00 in There will be no physical meetup, United Kingdom

    Please note this is an online monthly prize draw and no actual meeting will take place.Packt Publishing are a unique publishing company specializing in highly focused books on specific technologies and solutions - please visit their site to find out more about them: www.packtpub.comEach month we run a promotion with Packt in which LJC members will be selected at random to receive free books. This month we are offering 2 LJC members the chance to win

  • Monthly Prize Draw: FREE JRebel license

    Thu, 31 Mar 2011, 11:00 - 13:00 in There will be no physical meetup, United Kingdom

    JRebel maps your project workspace directly to your running application. When a developer makes a change to any class or resource in their IDE the change is immediately reflected in the application, skipping the build and redeploy phases. For further information see their site: | | have two personal licenses of JRebel including their Enterprise Add-on (a combined value of $159 USD) to offer this month.

  • Online Monthly Prize Draw: Packt Publishing

    Thu, 31 Mar 2011, 11:00 - 13:00 in There will be no physical meetup, United Kingdom

    Please note this is an online monthly prize draw and no actual meeting will take place.Packt Publishing are a unique publishing company specializing in highly focused books on specific technologies and solutions - please visit their site to find out more about them: www.packtpub.comEach month we run a promotion with Packt in which GDC members will be selected at random to receive free books. This month we are offering 2 GDC members the chance to win

  • OSGI: Let's Get Started

    Tue, 29 Mar 2011, 17:30 - 19:30 in London, United Kingdom

    OSGI: Let's Get StartedPlease note SkillsMatter are hosting this event and are handling the attendance - it is essential that you confirm your place at this link: this presentation to gain an basic overview of the key aspects of OSGi, including concepts and the problems it solves in the Java language. This session is aimed at beginners and those who are looking at OSGi for the first time.

  • Modern Java Concurrency

    Thu, 24 Mar 2011, 18:30 - 20:30 in London, United Kingdom

    ********IMPORTANT ********** SkillsMatter are hosting this event and are handling the attendance it is essential that you confirm your place at this link: | | | | | | the event, we will have two main technical presentations around concurrency which will be preceded by 3-4 of lightning talks from our members.BEN EVANS - Clock speed and performance are no longer increasing as spectacularly as they once did. Instead the focus has turned to more cores per chip.

  • Improving your programming skills - Introduction to TDD

    Mon, 21 Mar 2011, 18:00 - 20:00 in London WC1H 0AJ, United Kingdom

    Entrance is the half way along Gordon Street.  Please take a look at the UCL campus map to help get your bearings.This event will give you an introduction to Test Driven Development (TDD), a standard practice for development projects in industry and is also used in many open source projects.

  • Amazon Web Services Tech Summit for Developers and Architects

    Thu, 17 Mar 2011, 12:00 - 14:00 in London, United Kingdom

    AWS Tech Summit for Developers and ArchitectsPlease note this is an event organised and run by Amazon Web Services. They have asked us to assist with promoting the event, if you are interested please sign up to at this link: | this half-day event and gain in-depth knowledge of key technical concepts such as running applications and databases using Amazon Web Services (AWS)

  • 48 hr Free MongoDB Conference Pass Prize Draw

    Fri, 11 Mar 2011, 10:00 - 12:00 in This is an online promotion, United Kingdom

    Win one of three free passes to the MongoDB conference.MongoUK is a one-day conference dedicated to the open source, non-relational database MongoDB - Monday 21st March 2011 - 9am to 6pm. Click here for more details - your chance to win please RSVP to this event and answer the sign-up questions.The winners will be contacted after 10am on Friday 11th March 2011.Best of luck

  • Monthly Prize Draw: FREE JRebel license

    Mon, 28 Feb 2011, 12:00 - 14:00 in There will be no physical meetup, United Kingdom

    JRebel maps your project workspace directly to your running application. When a developer makes a change to any class or resource in their IDE the change is immediately reflected in the application, skipping the build and redeploy phases. For further information see their site: | | have two personal licenses of JRebel including their Enterprise Add-on (a combined value of $159 USD) to offer this month.

  • Online Monthly Prize Draw: Packt Publishing

    Mon, 28 Feb 2011, 12:00 - 14:00 in There will be no physical meetup, United Kingdom

    Please note this is an online monthly prize draw and no actual meeting will take place.Packt Publishing are a unique publishing company specializing in highly focused books on specific technologies and solutions - please visit their site to find out more about them: www.packtpub.comEach month we run a promotion with Packt in which GDC members will be selected at random to receive free books. This month we are offering 2 GDC members the chance to win

  • GGUG/SkillsMatter event: Groovy & Grails: what's all the fuss?

    Mon, 21 Feb 2011, 18:30 - 20:30 in London, United Kingdom

    Please note - This event is being organised through GGUG. Hosted by SkillsMatter and promoted through the LJC. You will need to confirm your attendance here: and Grails have steadily been gaining traction in the last few years, but what exactly are they and how can they help you?In a first 40 minute talk, Peter Ledbrook will introduce the language and some of the most significant projects associated with it.

  • Modern Java Concurrency

    Wed, 2 Feb 2011, 18:00 - 20:00 in London SW3 3XB, United Kingdom

    The doors will open at 18:00 for some refreshments sponsored by PlayFish and if we're lucky playing in their Rockband lounge.At 18:30 we will have a few lightening talks on Concurrency, including Campbell Wilson of PlayFish speaking on Concurrency and the general architecture of their highly scalable Social Games.For our main event Ben Evans of Deutsche Bank will present a very distinctive take on Modern Java Concurrency

  • June London Clojure Dojo

    Tue, 29 Jun 2010, 18:00 - 20:00 in City of London, United Kingdom

    We'll be discussing the meetup on the london-clojurians mailing list: on Google Wave: https://wave.google.c...Clojure is a JVM language that has syntatically similarities to LISP, full integration with Java and its libraries and focuses on providing a solution to the issue of single machine concurrency.

  • London Java Community Unconference In Association With Apache

    Sat, 26 Jun 2010, 20:30 - 22:30 in London, United Kingdom

    The London Java Community is delighted to announce our 2nd Unconference, organised in association with the Apache Software Foundation.Firstly and most importantly please be aware that we are using Meetup purely as a way of generating awareness. Skills Matter are sponsoring the event and handling all attendance.

  • London Developers: Takin it to the pub ***PLEASE NOTE DIFFERENT ADDRESS***

    Tue, 15 Jun 2010, 17:30 - 19:30 in Islington, United Kingdom

    ***PLEASE NOTE DIFFERENT ADDRESS FOR THIS EVENT ON THIS OCCASION***This is our monthly social gathering which incorporates members of The London Java Community, Graduate Development Communities & London Scala User Group.The eveningWe meet in the evening on the third Tuesday of every month - on this occasion we will be meeting here - .... The event kicks of at 6:30 PM and usually goes on until 11:30 with people coming and going at all times throughout the evening.

  • The enigma of Java: the Java Memory Model

    Wed, 2 Jun 2010, 17:30 - 19:30 in Hackney, United Kingdom

    ********IMPORTANT ********** SkillsMatter are hosting this event and are handling the attendance it is essential that you confirm your place at this link: in the trenches of the Java Language Specification lies the enigmatic Java Memory Model. The Java Memory Model (JMM) is responsible for defining consistent thread behaviour with memory.Without your awareness, your code can be subtly re-ordered, produce values out of thin air and read stale state.

  • May London Clojure Dojo

    Tue, 25 May 2010, 18:00 - 20:00 in City of London, United Kingdom

    We'll be discussing the meetup on the london-clojurians mailing list: on Google Wave: https://wave.google.c...Clojure is a JVM language that has syntatically similarities to LISP, full integration with Java and its libraries and focuses on providing a solution to the issue of single machine concurrency.

  • London Developers: Takin it to the pub - (Free food + happy hour all night)

    Tue, 18 May 2010, 17:30 - 19:30 in City of London, United Kingdom

    This is our monthly social gathering which incorporates members of The London Java Community, Graduate Development Communities & London Scala User Group.The eveningWe meet in the evening on the third Tuesday of every month in a private room at the Lvpo bar in Soho ... The event kicks of at 6:30 PM and usually goes on until 11:30 with people coming and going at all times throughout the evening.

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