MongoDB

**About the Speaker** **Simon Ritter** With over a decade of experience as Deputy CTO at Azul Systems, our speaker has helped shape the adoption of Java and JVM technologies across the global developer community. A recognized expert in Java and open source, he is passionate about advancing developer productivity, application performance, and innovation throughout the software ecosystem. **Agenda** **Keeping Your Java Hot by Solving the JVM Startup and Warmup Problem** Java bytecodes and class files deliver on the original vision of “write once, run anywhere”. Using a Just-in-Time (JIT) compiler allows JVM-based applications to compile only the code that’s used frequently and optimise it precisely for how it's used. Using techniques like speculative optimisation can often deliver better performance than static, Ahead-of-Time (AOT) compiled code. However, this flexibility and performance come at a cost. Each time the JVM starts an application, it must perform the same analysis to identify hot spots in the code and compile them. This is referred to as the application warmup time. In this session, we’ll look at several approaches to alleviating or even eliminating this problem. Specifically: · Static compilation of Java code ahead-of-time (AOT). Specifically, the Graal native image approach · Generating a JIT compiler profile of a running, warmed-up application that can be reused when the same application is restarted, eliminating the need for much of the JIT compilation. This will include details of the work of the OpenJDK Project Leyden. · Decoupling the JIT compiler from the JVM for a Cloud environment. Providing a centralised JIT-as-a-Service allows caching of compiled code and offloading the compilation work when new code must be compiled. · Creating a checkpoint of a running application. This includes all application state (heap, stack, etc.) in addition to the JIT-compiled code. Project CRaC will be used as an example. At the end of the session, you’ll be all set to keep your Java hot! **Modern Java Puzzlers** Since JDK 9, Java, as a language, has evolved faster than at any point in its 30-year history. For developers, this is great, as it means we get more new features that make our code more concise and, hopefully, easier to read and understand. All new language features also bring their quirks and possibly unseen consequences. In this fun interactive session, we’ll examine a range of recent language features and pose questions to the audience about how the code works and what it does. We’ll cover many of the new language features from recent releases, including switch expressions, sealed classes and pattern matching. We’ll even look at some curious ways special characters can be used in unexpected ways. The answers will most definitely not always be as you expect!

We had a badminton session at **Braddell Heights Community Club, behind NEX Shopping Mall,** on Friday night **12th Jun 2026**. Welcome all Intermediate players to join us for some badminton work out. * 7:30pm - 9:30pm * Intermediate Players. * Court 2 * 2 hours per session * S$10 per session * Shuttles provided (RSL Supreme) * Location: 50 Serangoon Avenue 2, #01-01, Singapore 556129 * Do join us if you are available.

This in-person event is built for developers and cloud engineers who want to design, build, and deploy real-world AI solutions on Azure. Expect a hands-on, implementation-focused experience using Microsoft Foundry and GitHub Copilot with live demos, guided labs, and practical developer workflows. **What to expect:** * Key takeaways and announcements from Microsoft Build 2026 * Deep dive into Azure AI and Generative AI use cases * Live demos with Microsoft Foundry and GitHub Copilot * Hands-on labs to build and test AI-powered features end-to-end * Best practices for building AI-powered applications * Networking with the local AI developer community Whether you're shipping your first AI feature or scaling production systems, this event is designed to give you actionable insights to accelerate your AI journey with Microsoft. Don't forget to register using direct Microsoft reactor Link as below which is mandatory - https://developer.microsoft.com/reactor/events/27204

**\*If interested, please whatsapp** [wa.me/+6588842635](wa.me/+6588842635) **or +65 8884 2635! Sign-ups *are only confirmed after contacting us and joining the WA group! \**** Gunung Berembun Jelebu (1,014m) is an interesting hike with the chance of visiting a WWII plane crash site, while hiking through a dense rainforest with waterfalls and streams, and fallen trees. There are many "Gunung Berembun" but this is the one located in Negiri Sembilan! We will be doing the classic route via Kampung Pantai. It is considered a full day hike, slightly shorter than Ophir. This is usually used as a training hike, and exposure to different elements and exploring a more raw trail, rather than a hike for the view itself. **Who is this for?** * It is most suitable for those who just want an interesting full-day hike out similar to Ophir, but less curated than the usual ones. * It serves as a good training or progressive hike for those who wish to do more hiking. Most do it as general training for hikes. * Wish to experience a more raw rainforest trail with less crowds, and different elements * Wish to do a full-day hike nearby without travelling so far * Wish to see a WWII plane crash site and wreckage * Not for those who are hunting for a beautiful viewpoint at the summit **How tough is it/How fit do I have to be?** Duration: \~5h up, and 4h down. You can u-turn at the summit instead of going to the crash site. Distance: \~7km one way, total of 14km. It is generally tropical forest trail, with some river, rope portions. However, if you have done other Malaysia hikes before like Gunung Datuk/Lambak/Ophir before, the terrain is not that much of a surprise, except it is more raw. With the presence of streams, please do expect leeches! To confirm, do RSVP and send me a whatsapp message! A Whatsapp group will be set up. Do make sure you're in the WA group if you're going. A minimum of **12 pax** is needed for this trip to go ahead. **Estimated Itinerary: (Saturday)** \~12.00 am : Meet @ Marsiling MRT 4.30 am : Breakfast 6:30 am : Reach Kampung Pantai Baru Trailhead. Start hike. Walk/4WD in for 2km. 10.00 am : Gunung Berembun Summit 11.30 am : WWII Crash Site 12:30 pm : Gunung Berembun Summit (lunch) 4:00 pm : Descend back to trailhead. Wash up and exit. 5.00 pm – 11.00pm : Dinner and head back to Singapore. ***Itinerary is subject to changes based on conditions and group speed and trek leader's discretion*** **\*You may leave your non-hiking items on the vehicle\*** Price: **$140** Price includes: 2-ways Transport All associated Park Permits/ Fees LMT Trek Leader LMT Info-Kit Price excludes: All Personal expenses/Meals Personal Travel Insurance Visa Application (if any) Other personal expenses This event is organized by LITTLE MONSTERS TRAVEL PTE LTD Travel Agent Licence No: 03117 Contact : +65 88842635 Email: info@littlemonsterstravel.net

**\*If interested, please whatsapp** [wa.me/+6588842635](wa.me/+6588842635) **or +65 8884 2635! Sign-ups *are only confirmed after contacting us and joining the WA group! \**** Join us for a leisure hike, where the idea is to include hiking in our lifestyle. For the Leisure Hike series, we always look at a hike that isn't too intense, just to get our limbs moving, have fresh air, and hopefully good company too, and combine with an R&R activity. We'll do an easy hike for a sunrise view and enjoying being out nature before heading for good food in Malacca and leave for some time for R&R So bring your friends, make new friends and hang out together! There is nothing like enjoying Nature and good food! Bukit Senaling (394m) is a famous beginner hill in Malaysia which everyone goes for the "sea of clouds". It is a leisure hike up and down, so it will just be something to warm up the body and have a view! We'll try to pack some breakfast along the way (bring your own containers), or bring your own food, floor mats, or coffee/tumblers/cups. We'll start hiking early, so we can have breakfast at the summit while waiting for sunrise =) It takes around an hour + to reach the summit, and the same amount down. The idea here is to take your time to enjoy the morning walk, the fresh air and the sunrise. It'll be nice to sip a hot drink while looking at sunrise, breathe in fresh air and feel connected to Nature. After which, we'll descent and head to either Malacca where its free and easy and we can all have some massage and good food! If interested, do **whatsapp +65 8884 2635**. A whatsapp group will be set up for further information and coordination. A minimum of **12 pax** is needed for this trip to go ahead. Your place is only confirmed once payment is made. ***Estimate Itinerary*** \*11.30pm\*\*\*(Timing to be confirmed in the whatsapp group)\*\*\* – Meet Marsiling MRT, depart for Bukit Senaling 4.30am – Stop by for breakfast/takeaway 5.30am – Start trek at with headlights 7.00am – Summit and enjoy your own breakfast 8.00am- Head back down 9.30am- Depart for Malacca. R&R along the way for toilets/shower. 11:30am to 1pm – Reach Malacca, lunch and free & easy. 4.30pm – Depart back to SG 10.30pm to 11.30pm - Back in Singapore **Itinerary subjected to changes, depending on speed/ actual conditions / decision by the trek leader** **\*You may leave your non-hiking items on the bus, please bring along your own headlights!\*** Price: $110 per person If we end up with >20 pax, I'll make it $100 per pax for everyone! \*\*Good views dependent on weather! Price includes: 2-ways Transport LMT Trek Leader Any necessary permits/guides for Senaling Price excludes: All Personal expenses/Meals Visa Application (if any) Personal equipment (headlights etc) This event is organized by LITTLE MONSTERS TRAVEL PTE LTD Travel Agent Licence No: 03117 Contact : +65 8884 2635 Email: info@littlemonsterstravel.net Some additional questions: 1. Are there shower or toilet facilities at the park? A: Usually just toilet, we'll try to find a shower nearby. 2. I am totally new to hiking, what should I bring/wear? Is there training? A: Training is by yourself. Its a leisure hike, pack light! Just need headlights. 3. What happens if it rains! A: We'll adjust the itinerary accordingly. Unless its a thunderstorm, we'll still hike.

Free Tango trial class for complete beginners. No partner required. Free. Please register via WhatsApp +65 97627805.

Join Os Angoleiros do Interior on Saturday morning for a whole-body experience of Capoeira Angola! Come in comfortable clothes as we learn basic movements and tune our senses to the rhythm of Capoeira Angola. Welcome to all levels of movement experience, even if you have never heard of Capoeira! First class is free!

We had a badminton session at **Braddell Heights Community Club, behind NEX Shopping Mall,** on Sunday afternoon **14th June 2026**. Welcome all High Beginner and Low Intermediate players to join us for some badminton work out. * 1:30pm - 2:30pm * High Beginner and Low Intermediate Players. * Court 2 * 2 hours per session * S$10 per session * Shuttles provided (RSL Supreme) * Location: 50 Serangoon Avenue 2, #01-01, Singapore 556129 * Do join us if you are available.

English-Japanese Language Exchange while exercising! 運動しながらの英語と日本語の言語交流！ Meet at Redhill MRT station ( I will be wearing a happi/haori looking thing for visibility) 待ち合わせ： Redhill MRT (Green Line) Things to bring・持参物: \- Umbrella\!\!\! 日傘！！！ \- Bottled Water・水 \- Towel・タオル \- Insect Repellents・虫よけ \- Medication if any・自分の薬（必要であれば） \- It will be hot\, short sleeve and pants recommended \- 暑いので運動用の軽装がおすすめです。 ルールと注意事項： * コミュニケーションは親切で適切に行ってください。 * 相手が希望しない場合は連絡先の交換をしつこくせずにください。 * 参加は自己責任で行ってください。活動中のプライバシーや健康問題は自己管理が必要です。 * グループの管理者は、不適切な参加者をブロックおよび禁止する権利を有します。 * グループの活動中やその後のいかなる形の嫌がらせも許容されません。 * いかなる種類の勧誘も禁止されています * このグループの活動に参加することで、グループ写真などのマーケティング目的で使用される写真や動画に同意するものとします。活動中の写真撮影から離れていただいても構いません。写真や動画から自分を削除・隠したい場合は、ご連絡いただければ、プライバシー保護のために笑顔の絵文字を貼り付けますので、お知らせください。 * Rules and notes: \- Be kind and proper in your communication\. \- Do not pester for the exchange of contact information if the other party wishes not to\. \- Join at your own risk\. You are responsible for your own privacy and health issues during activities\. \- Group admins reserve the right to block and ban any unruly participants \- Any form of harassment during or after the group's activities will not be tolerated \- No recruitment or soliciting of any kind is allowed \- By participating in this group's activities\, you consent to be in any pictures or video used for marketing purposes\, such as group photos\. If you feel uncomfortable\, you are free to step away from any photo\-taking\. If you wish to remove/hide yourself from any media\, kindly let us know\, and we will paste a smiley face over you to protect your privacy\.

Bring a book, we will read and share. Not very long before my sharing of a type of reading method. Your book and sharing will be a live example. The method flow is: how to record, build up your reading list, analysis and learn yourself better. It requires assistance with computer and AI as well. So you can bring your laptop or a paper notebook to record the key steps. MeetUp sharing is like half workshop, maybe i talk a little more depending on how well you have prepared. This Meetup sharing will be in series, but there is not only Meetup. The regular gathering is casual and flexible as the calendar shows. It is not big group, 3-4 pax will do. 1 to 1 is also fine. Welcome!

Over a billion documents processed. Millions of Veterans impacted. Hundreds of thousands of employee hours saved. Faster decisions. Greater accuracy. More benefits in the hands of our disabled Veterans. We created Smart Search, the world’s largest consumer of Amazon Textract, right when GenAI began reshaping what’s possible. Since then, we’ve built a suite of AI‑driven solutions that transform this data into real, measurable outcomes—accelerating benefits decisions for our Nation’s Veterans. Join us for a focused conversation on how an outcome‑driven approach to AI is helping us boost accuracy, streamline workflows, and deliver faster results for those who have served. This is a follow up to the AWS re:Invent 2023 "Intelligent Document Processing with Gen AI for Public Sector" presentation. About Speaker: Cameron Williams is a Senior Technical Project Manager and cross-functional technical leader at Booz Allen Hamilton with 15+ years of experience architecting and evolving scalable, cloud-native systems, from greenfield development to complex enterprise modernization. https://www.linkedin.com/in/cameronw711/ **THANK YOU** *Franklin University* for hosting our meetup! To learn more about *Franklin University*, please visit their website: https://www.franklin.edu/ **DIRECTIONS** Franklin University Fisher Hall 300 E. Main St, Columbus, OH 43215 Map: https://maps.app.goo.gl/jxjBA2hUmS5qrvhq8 Parking is FREE! Please park in Lot C in front of Fisher Hall. See attached map. NOTE: Map the address only. When mapping with Google Maps it may use the Fisher Hall at OSU, which is NOT correct. **Want to sponsor the pizza and/or bar tab?** Please contact me if you would like to sponsor this meetup's pizza and/or bar tab: angelo@mandato.com

Start your week the right way with Manic Mondays. Giving you an enjoyable Bachata lesson with a push of cool moves. The second hour has Beginner/Intermediate Salsa on 1. You must understand basic Salsa skills to participate. 730pm-830pm Bachata Cool Moves 830pm-930pm Salsa On 1 (Beginner/Intermediate) 15 for One Class 20 for Both Free Parking & Plenty of Dance Space. Viva Dance Columbus 2809 Festival Lane Dublin OH 43017

**Important time note:** Please plan on arriving between 5:30 and 6:00 as the elevators lock after 6 and you'll need to message us and we'll need to come get you. The building address is 4450 Bridge Park The entrance is 6620 Mooney St, Suite 400 You will need to scan your ID at the door to get a visitor badge. **Abstract** *Customize the IDE: Building Extensions for Visual Studio Code* Visual Studio Code is one of the most widely used development environments today, and much of its flexibility comes from its extension ecosystem. Extensions allow developers to customize the editor with new features, integrations, and workflow improvements tailored to their needs. In this session, we’ll cover what extensions are and the different types available, including full extensions written in TypeScript or JavaScript, along with lighter-weight extensions such as color themes, language packs, language support, code snippets, and keymaps. We’ll also look at practical reasons a developer might create an extension, from automating repetitive tasks to adding custom tooling. The session includes a hands-on walkthrough of creating a new extension, testing it locally, and understanding the basic project structure. We’ll close with a brief overview of how extensions are packaged and published to the Visual Studio Marketplace and other distribution options. **YouTube Link** TBD

We are bringing Microsoft Build sessions to Columbus Ohio! The Central Ohio Azure Meetup and Central Ohio .NET Developer's Group (CONDG) are coming together to bring some of the labs and breakouts from Microsoft Build to your backyard. In this free, 1 day event, you are going to Build stuff with us! And yes, there will be free food. Please RSVP via [Microsoft Build //localhost:columbus | Microsoft Reactor](https://developer.microsoft.com/en-us/reactor/events/27247/).

This month we’ll be reading Goddess of the River by Vaishnavi Patel. Feel free to come even if you don’t finish the book!

We are going to build together with all the CLIs! E will be doing it at Columbus Code and Coffee Agenda --- Hosted By James Power, Organizer Pete Gordon, Organizer Just a Software Guy in the age of the Internet. Complete your event RSVP here: https://gdg.community.dev/events/details/google-gdg-columbus-presents-ai-improv-lets-build-a-game-together-with-claude-code-codex-and-gemini-and-be-the-judge/.