Our new meeting location:
5 Wayside Rd Burlington MA 01803  

  • 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.,

  • Sponsors
    Recent Events
    • Java is a language in evolution. There are a handful of language changes in Java 9 and 10 plus several JDK changes in 9, 10, 11, and 12. Some of these changes are significant in that they allow us to do things more effectively than before. The difference can be anywhere from reducing code to avoiding errors that come from verbosity. In this presentation we will explore the language changes first. Then we will visit the additions to the JDK. Along the way we will also look at a few things that have been removed from Java as well.

    • You’ve probably heard of MicroProfile, but how do you go from buzz to production? In this code-heavy, interactive presentation, we’ll describe how to use OpenTracing (http://opentracing.io/) with Jaeger (https://www.jaegertracing.io/)  and annotations in MicroProfile and other Microservice architectures to reliably improve and deploy updated versions your applications to OpenShift and Kubernetes in the cloud.  Topics include best practices for performance analysis, maintaining delivery pipelines using the Linux command line, plus tips on the best free OpenTracing tools and SDKs available on GitHub.

       

      NOTE: This meeting is NOT on our normal "second-Thursday" schedule.

       

    • The popularity of Amazon's Alexa and Google Home has been inspiring both developers and businesses to think about Voice computing. From a banking assistant on your phone to grocery shopping on your TV - it is truly exciting to see how Voice Interfaces could be used. The challenge, however, is that most Voice Apps are fairly limited in what they can do.

      In this talk, Vineet shares experiences from prototyping and building over a dozen Voice Apps. He shows how practical decisions can make implementing great apps easy, reviews existing tools that have been built and talks about Violet (http://helloviolet.ai/) an Open-Source Voice App Framework designed to help developers create Voice Apps. Violet uses an approach inspired by Angular and React to simplify the complexity needed when manually building using other lower-level frameworks, while providing for more flexibility than the drag-and-drop non-technical tools on the market.

    • 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. 

       

      • The venue will open at 5:30 PM for networking, so come early and meet everyone else. 
      • Pizza, drinks (including beer!)  sponsored by Chewy --- there will be some Gluten free pizza as well.
      • There will be a 15 minutes Lighting Talk at 6:00 by Marco Ferrer, Software Engineer at Chewy.

       

      If you have any questions, feel free contact Mahesh Acharya (Nejug Event Coordinator) at 617 767 Three One Seven One.

      We would like to thank the following volunteers:

      Photography: George Yazbeck

      Videography:  Francis Solis Olivares

       

       

    • 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.

  • NEJUG Calendar


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    Meeting location


    Like our new website?

    We appreciate your comments, feedback and improvement suggestions, the NEJUG web development team is eager to hear from you. Please leave a message!


    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.