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  • Welcome to NEJUG

    The New England Java Users Group is open to everyone interested in Java and the JVM. Meetings are usually held on the second Thursday of each month. The meetings and membership are free. We do not hold meetings in July and December. The NEJUG was formed in November 1998. We currently have over 6000 members. Meeting space is limited and we must ask members to register in order to attend meetings. It is common for over 300 people to register for a single meeting! What better way to meet new people interested in Java, development, architecture, or just get your technical questions answered.

  • Want to help?

    NEJUG is a volunteer driven organization, we can always use help from our community members, we can use your help with organizing the monthly meetings, adding new features and maintaining the website etc.,

  • Upcoming Events
    • Learning a new programming language doesn’t have to be hard. Sure, there’s a lot of new stuff to wrap your head around: syntax, keywords and symbols, conventions, how to define variables and methods, arrays, and the list go on and on! But what if there were a technique and toolkit you could use to master a new language fast?

      In this session, Richard Kasperowski introduces mob programming and code koans. Mobbing is about getting all the best minds working on the same computer at the same time. Code koans are a series of micro-puzzles that teach you the new language in little chunks, using test-driven development. We’ll mob together on a set of code koans to learn a new language. Even better, we’ll decide on the language together! Current choices include C++, Java, JavaScript, Python, and Ruby.

      Who should attend? Anyone who wants to learn about mob programming and how to learn a new language.

       

      We would like to thank our event host Chewy.com for all the support for making this event possible in Downtown Boston. 

       

       

    Sponsors
    Recent Events
    • Resilient architecture is crucial for all cloud implementations. In this talk, we explore different design patterns to make a distributed application more resilient. 

      As part of this journey, for any process, we need to ask what if something goes wrong? Then, plan a course of action to the process auto heal without any human intervention and how to lower risks by performing canary deployments. Design starts with at first understanding of requirements and performing empathy map and value chain analysis. 

      Thinking application as stateless for all the API calls makes the system available most of the time requires creating a cache for common distributed data. Next, we examine how to deal with cascading failures, and timeouts scenarios.  Applications, as part of auto-healing, need to Detect, Prevent, Recover, Mitigate, Complement so that the service is resilient. 

      Key takeaways for the audience are as follows:

      • Resiliency is essential for any feature in cloud
      • Understanding the value chain is critical to identify failure points
      • Challenges come in identifying if there is a failure and design the system for auto healing
      • Focus should be first to prevent a failure to occur. 
      • Identifying key challenges in your company and tools and techniques to auto-heal and provide a sustainable solution
    • Have you ever wanted to deploy hundreds if not thousands of virtual servers with the single click of a button. Who hasn't? With a little JSON and the utility Terraform by HashiCorp, this power can be yours. 

      By deploying your infrastructure as a service, you can not only keep track of what resources are where, but also easily adjust or deploy additional resources without the need for navigating cumbersome user interfaces.

    • Java Modules are the future. However, our enterprise applications have legacy code, a lots of it. How in the world do we migrate from the old to the new? What are the primary challenges?

      In this presentation we will start with an introduction to modules and learn how to create them. Then we will dive into the differences between unnamed modules, automatic modules, and explicit modules. After that we will discuss some key limitations of modules, things that may surprise your developers if they're not aware of. Finally we will discuss how to migrate current applications to use modules.

      • Fourth Annual NEJUG Holiday Party


        Thursday December, 13, 2018 06:00 PM
        Bertucci's
        475 Winter St Waltham MA 02451
        2

      The NEJUG Holiday Party is scheduled for our normal "second Thursday" in December, but it is not a normal presentation meeting. Instead, it's an "all fun time" event where we get to chat, eat, drink, and socialize. Come, join us for dinner, great conversation and raffle prizes. Buy your tickets now and get the early bird discount!

      CLICK HERE 🡆  NEJUG Holiday Party Tickets (at EventBrite)

      Menu items include:

      • Rolls

      • Salad
      • Appetizers
      • Chicken Parma
      • Four Cheese Ravioli
      • Rigatoni, Broccoli & Chicken
      • Dessert
      • Soft drinks, tea, and coffee are included.
      • Cash bar also available.
      • NO PIZZA - That's for regular meetings...

       

      Space is limited to 50 guests so buy your tickets early! Tickets for yourself and your guests are available here: https://www.eventbrite.com/e/nejug-holiday-2018-tickets-51209185051

      There will be a Raffle drawing and you have a chance to win a Gift Card -- Thanks to our sponsor Attivio

       

      Corporate Sponsors:

      We are looking for additional corporate sponsors to help maximize the fun! Contact Avi Neer <avineer@gmail.com> if you have a sponsor idea or contact for monetary support, raffles items, or door prizzes.

       

      Thanks to our primary Holiday Party sponsor:

      John Galt contributes to the success of organizations and individuals throughout the United States by expertly matching them with one another. Founded in 1997, they have worked with thousands of organizations and individuals over the years to enable them to achieve success. Their focus is on contract technology professionals in disciplines which are critical to an organization’s success.

       

      Raffle Gift Card Sponsor:

       

       
      Attivio is an intelligent answers and insights platform that brings intuitive search experiences to businesses. In doing so, we help mid-to-large sized companies solve their most complex search needs/projects, such as customer support, risk avoidance, and digital transformation. To do this, we leverage our own natural language processing (NLP) and machine learning (ML) capabilities to provide a personalized and accurate search experience that delivers actionable answers to every question, instead of a simple list of links.

       

    • While "DevOps" is a very overrated and misused marketing term, we have many DevOps stories from around the world proving that shared responsibility between Dev and Ops can work out really well.

      A key component of DevOps is open communication and feedback loops. Monitoring data is one source of these feedback loops. Too often, however, this is only done in Operations for firefighting and root cause analysis. Kevin will discuss approaches of Shifting-Left Performance into the Continuous Delivery Pipeline to give earlier and faster performance, scalability and architectural feedback to developers, testers, architects and business.

      The presentation will include some hands-on experience on how to bake monitoring into DevOps tool chains such as JIRA, Bitbucket, Jenkins, Git, HipChat, JMeter, … - there should be something for everyone who wants to learn some new tips & tricks on how to become more “DevOps’y”

      • Meshing Around with Istio

        Attended: 123
        Thursday October, 11, 2018 06:00 PM
        Constant Contact Reservoir Place
        1601 Trapelo Road Waltham MA 021451
        2

      Check out the Prezzi that Jonathan made for this presentation

      https://prezi.com/view/awP8F1N9QDV3vRCEAYCY/

       

      Kubernetes out of the box is a strong platform for running and coordinating large collections of services, containers, and applications. As is, Kubernetes is powerful for many solutions.

      Remember Underdog?  He was a mild-mannered dog, but when stress and conflict were introduced to the plot he took a magic pill, he became a superhero. Istio is a superhero for Kubernetes.

      Istio is an open, platform-independent service mesh that manages communications between services in a transparent way. With a distributed architecture many things can fail, slow down and become less secure. Istio provides solutions to those stresses in our plot toward this architecture style:

          • Traffic management

          • Observability

          • Policy enforcement

          • Service identity and security

       

      We will explore these benefits with Istio through some working examples on Kubernetes. The key point is this meshing solution allows your Java code to be less coupled to the inherent weaknesses of a distributed platform.

  • NEJUG Calendar


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    Meeting location


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    What is NEJUG Lightning Talk?

    Presentation videos


    Algebraic Databases from Nejug Video on Vimeo.


    Debugging Backwards in Time from Nejug Video on Vimeo.


    Essential Spring Boot from Nejug Video on Vimeo.


    Love your Architecture, Or, How to Organize Your Code from Nejug Video on Vimeo.

    Want to present a short talk?

    Lightning Talks are short 10-15 minutes presentation on any subject matter, this mainly to encourage our NEJUG members to engage, develop and improve presentation skills.


    Help us choose the next subject

    We strive to bring presentations that are interesting and trending, but we would also like to hear from our community members about what subject matters they are interested in. Please let us know about your topic suggestions.