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Nils Hartmann: Spring Modulith
Hallo liebe Java User Group Mitglieder!
Diesmal haben wir Nils Hartmann mit seinem Talk zum Thema "**[Spring Modulith](https://spring.io/projects/spring-modulith)**" zu Gast.
Wir freuen uns euch zu sehen (virtuell oder vor Ort).
* 18:00 Uhr: Einlass
* 18:30 Uhr: Talk
* ab 19:30: Ausklang des Abends
Dank an [qSkills](https://qskills.de/) für Location, Bier und Pizza!
\-\-\-
Oft sollen Anwendungen in entkoppelten Modulen entwickelt werden, um Ordnung und Struktur in unseren Code zu bekommen und darüber Wartbarkeit zu garantieren. Microservices stellen dafür einen sehr konsequenten Ansatz dar, können aber auch eine hohe Komplexität mit sich bringen. “Monolithen” hingen sind vergleichsweise bequem in der Entwicklung, stehen aber im Verdacht, schnell zu einem unübersichtlichen “Big Ball of Mud” zu werden. Diesem Problem versucht “Spring Modulith” entgegenzutreten. Damit werden Spring Boot-Anwendungen in einer gemeinsamen Codebasis entwickelt (”monolithisch”), innerhalb dieser werden aber Module definiert ("modulitisch"), deren korrekte Verwendung anhand von Architekturregeln kontinuierlich überprüft und sichergestellt wird. Außerdem erweitert Spring Modulith das Spring-eigene Eventsystem, um auch zur Laufzeit für eine Entkopplung der Module zu sorgen.
In diesem Live-Coding-Vortrag möchte ich anhand praxisnaher Beispiele eine Einführung in Spring Modulith geben und mit euch diskutieren, welche Konsequenzen sich für unsere Anwendungen daraus ergeben und für welche Szenarien dieser Ansatz besonders geeignet ist.
\-\-\-
Dein Vortrag bei der Java Usergroup Nürnberg!
Hast du dich in letzter Zeit in deinem Projekt oder privat mit einem interessanten Thema beschäftigt? Vermutlich ist das nicht nur für dich selbst interessant! Hast du Lust, selber einmal einen Vortrag bei der Java-Usergroup Nürnberg zu halten?
Wir sind nicht nur auf Java-Themen fokussiert, sondern beschäftigen uns gern mit und um alles über Software Entwicklung und IT.
Wir wollen bei der JUG nicht nur bekannten Speaker\*innen eine Plattform geben und die neuesten State-of-the-Art Technologien vorstellen. Wir freuen uns auch besonders, wenn wir Themen aus unserem technologischen (Arbeits-)alltag Raum geben zu können. Melde dich gerne bei uns, wenn du dazu Lust hast, wir geben wenn gewünscht gerne auch Hilfestellung bei der Vorbereitung!
C# Events This Week
Discover what is happening in the next few days
Nils Hartmann: Spring Modulith
Hallo liebe Java User Group Mitglieder!
Diesmal haben wir Nils Hartmann mit seinem Talk zum Thema "**[Spring Modulith](https://spring.io/projects/spring-modulith)**" zu Gast.
Wir freuen uns euch zu sehen (virtuell oder vor Ort).
* 18:00 Uhr: Einlass
* 18:30 Uhr: Talk
* ab 19:30: Ausklang des Abends
Dank an [qSkills](https://qskills.de/) für Location, Bier und Pizza!
\-\-\-
Oft sollen Anwendungen in entkoppelten Modulen entwickelt werden, um Ordnung und Struktur in unseren Code zu bekommen und darüber Wartbarkeit zu garantieren. Microservices stellen dafür einen sehr konsequenten Ansatz dar, können aber auch eine hohe Komplexität mit sich bringen. “Monolithen” hingen sind vergleichsweise bequem in der Entwicklung, stehen aber im Verdacht, schnell zu einem unübersichtlichen “Big Ball of Mud” zu werden. Diesem Problem versucht “Spring Modulith” entgegenzutreten. Damit werden Spring Boot-Anwendungen in einer gemeinsamen Codebasis entwickelt (”monolithisch”), innerhalb dieser werden aber Module definiert ("modulitisch"), deren korrekte Verwendung anhand von Architekturregeln kontinuierlich überprüft und sichergestellt wird. Außerdem erweitert Spring Modulith das Spring-eigene Eventsystem, um auch zur Laufzeit für eine Entkopplung der Module zu sorgen.
In diesem Live-Coding-Vortrag möchte ich anhand praxisnaher Beispiele eine Einführung in Spring Modulith geben und mit euch diskutieren, welche Konsequenzen sich für unsere Anwendungen daraus ergeben und für welche Szenarien dieser Ansatz besonders geeignet ist.
\-\-\-
Dein Vortrag bei der Java Usergroup Nürnberg!
Hast du dich in letzter Zeit in deinem Projekt oder privat mit einem interessanten Thema beschäftigt? Vermutlich ist das nicht nur für dich selbst interessant! Hast du Lust, selber einmal einen Vortrag bei der Java-Usergroup Nürnberg zu halten?
Wir sind nicht nur auf Java-Themen fokussiert, sondern beschäftigen uns gern mit und um alles über Software Entwicklung und IT.
Wir wollen bei der JUG nicht nur bekannten Speaker\*innen eine Plattform geben und die neuesten State-of-the-Art Technologien vorstellen. Wir freuen uns auch besonders, wenn wir Themen aus unserem technologischen (Arbeits-)alltag Raum geben zu können. Melde dich gerne bei uns, wenn du dazu Lust hast, wir geben wenn gewünscht gerne auch Hilfestellung bei der Vorbereitung!
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Connect with your local C# community
快乐之学--《菩提道次第广论》共学
踏入《广论》研讨班,对许多人来说是开启生命转变的契机。或许您也会好奇:在繁忙的工作与生活之余,投入时间研读佛典,究竟能为人生带来哪些实质的成长与收获?
《广论》研讨班秉持着日常老和尚以心灵提升、圆满生命的目标,提供大众身、心、灵健康的学习环境与循序渐进的佛法课程。学员通过听师父的录音带和研讨交流,对佛法建立整体认识,全面的理解,同时学习如何将佛法智慧运用于生活中,打造幸福人生。
**《菩提道次第广论》简介**
佛法大全,给与您心灵滋养,人生方向
次第井然,引领您脚踏实地,步步向上
心智科学,帮助您认识自己,了解他人
幸福教育,教会您正确取舍,离苦得乐
生命教育,陪伴您创造希望,走向美好
C&O Canal Historical Park, Potomac, MD (Rate: C)
You must read the following NVHC Sign-in Sheet Statement/Liability Disclaimer, **[https://nvhc.com/signin.pdf](https://nvhc.com/signin.pdf)** and then answer the question that you will see when you RSVP with "**I Accept"** to be permitted on the hike.
**8.00 mile circuit hike with 500 feet of elevation gain.**
**Description:**
Our Hike will begin at **Pennyfield Lock 22** along the **C&O Canal** in the **[Pennyfield Lock Parking Lot](https://montgomeryparks.org/wp-content/uploads/2016/08/Montgomery-Parks-Blockhouse-Point-Trail-Map-letter-2024_a11y.pdf)** , and heads over to the **[C&O Canal Towpath.](https://www.canaltrust.org/plan/co-canal-towpath/)** While walking along the water’s edge, keep an eye out for sunbathing **[turtles](https://www.canaltrust.org/2020/10/top-5-photographed-turtle-species-on-the-co-canal/)**, elegant **[Blue Herons](https://potomac.org/blog/2022/7/11/5-large-birds-you-can-easily-spot-along-the-potomac-river)** and yes, **[snakes](https://www.nps.gov/choh/learn/nature/reptiles-amphibians.htm)** too, all the while soaking in sweeping views of the **Potomac River.**
From there the hike heads up into the **[BlockHouse Point](https://montgomeryparks.org/parks-and-trails/block-house-point-conservation-park/)**[ ](https://montgomeryparks.org/parks-and-trails/block-house-point-conservation-park/)**[Conservation Park](https://montgomeryparks.org/parks-and-trails/block-house-point-conservation-park/)** offering spectacular views of the **[Potomac River](https://www.americanrivers.org/river/potomac-river/).**
**Facilities:** Portable bathrooms at the trailhead
**Hike Pace**: Pace will be about **2.0 – 2.5 mph** while moving.
**Bring:** Adequate water/hydration, snacks/lunch, insect repellant and sturdy hiking shoes since there are some rocky areas/tree roots, stream crossing. Hiking poles if you normally use them.
**Fee:** None
**Dogs:** dogs are welcome on this hike in accordance with the **[NVHC Dog Policy](https://tinyurl.com/nvhcdogpolicy)**.
Please be sure your dog is able to hike the distance,
**Where to Meet:**
**GPS Coordinates**: **39°03'14.7"N 77°17'20.4"W**
**[LINK](https://maps.app.goo.gl/1eeDTXwpeV94x4cC8)**
**Address:**
Pennyfield Lock Road Parking Lot, **12400 Pennyfield Lock Rd · Potomac, MD**
Pennyfield Lock Road is about 5.5 miles northwest of Potomac Village on River Road.
Turn left onto Pennyfield Lock Road, take it to the very end, then turn left, and continue a few hundred feet to the Porta-Johns where we will park.
**CONTACT INFO:** Any questions, please message me here or text me at 703 533 9231
Dawn K. Hike Leader
**MAPS:**
**[BlockHouse Point Conservation Park](https://montgomeryparks.org/wp-content/uploads/2016/08/Montgomery-Parks-Blockhouse-Point-Trail-Map-letter-2024_a11y.pdf)**
**[AllTrails](https://www.alltrails.com/trail/us/maryland/blockhouse-point-loop-trail)**
Spec-Driven Development with GitHub Spec-Kit - Barret Blake
Spec-driven development flips the traditional workflow on its head: instead of code being the source of truth, the specification becomes the backbone of design, collaboration, and delivery. In this session, we’ll explore how GitHub Spec-Kit enables teams to treat specifications as first-class artifacts—living documents that drive architecture, implementation, and verification.
You’ll learn how Spec-Kit helps teams clearly express intent using structured, version-controlled specs that live alongside code. We’ll walk through a practical workflow that starts with defining system behavior and constraints, then progressively refines those specs into testable, automatable outcomes. Along the way, we’ll show how specs can reduce ambiguity, improve cross-functional collaboration, and make design decisions explicit before a single line of production code is written.
This talk will cover:
--What spec-driven development is (and what it isn’t)
--How GitHub Spec-Kit fits into modern developer workflows
--Using specs to align product, engineering, and AI-assisted development
--Real-world examples of turning specs into implementations with confidence
Whether you’re building greenfield systems, integrating AI into your stack, or trying to reduce costly rework, spec-driven development offers a scalable way to move faster without sacrificing clarity. Attendees will leave with concrete patterns and a clear mental model for adopting GitHub Spec-Kit in their own projects.
Billy Goat B & C Trails, Olmsted Island, C&O Towpath - (Rating: B)
You must read the following NVHC Sign-in Sheet Statement/Liability Disclaimer, [https://nvhc.com/signin.pdf](https://nvhc.com/signin.pdf) and then answer the question that you will see when you RSVP with "I accept" to be permitted on the hike.
**10.5 miles with 250 feet elevation gain.**
***Let's hike the recently reopened Billy Goat B trail which has been closed for several years. One of my favorite sections, I'm glad it's back!***
This is a beautiful area along the scenic C&O Canal National Historical Park towpath. This trek will include a hike on Billy Goat B & C trails with great views of the Potomac River, as well as the roaring waters of Olmsted Island and the Great Falls overlook. This route includes a very scenic section of the towpath.
**Description:**
We'll start our hike on Billy Goat C trail and hike until we connect with the C&O Canal towpath. We'll hike to the Tavern visitor center for lunch break before we reconnect with the towpath. and make our way to Olmsted Island and the Great Falls Overlook. We'll then resume on the towpath until we cross over the canal onto Berma Road for a short distance where we reconnect to the towpath at Angler's Inn parking area. We're back on the towpath where we will connect to Billy Goat B trail. Note: There is one stream crossing on Billy Goat B which is fairly easily crossed by stone stepping.
After completing Billy Goat B, we'll then connect back to the towpath and return to the trailhead parking.
The pace will be about 2.5 mph.
**Bring:**
Adequate water/hydration, snacks/lunch, and sturdy hiking shoes since there are some rocky areas and tree roots on both Billy Goat B & C.
Restrooms are available at the Carderock Picnic Area parking lot where we start as well as at the Tavern Visitor Center. Hiking poles may be useful if you normally use them.
**Trailhead:**
We will meet in the Carderock Picnic Grounds parking lot in Carderock Recreation Area.
Please plan on being there at 8:45am so we can get everyone signed in and start the hike on time.
**Dogs are welcome.**
Dog Policy [https://tinyurl.com/nvhcdogpolicy](https://tinyurl.com/nvhcdogpolicy)
***Please note: Dogs are not allowed on the Olmsted Island boardwalk, so you will have to wait while the group completes the Olmsted Island walk***.
**There are no fees.**
Map of Hiking Trails at Great Falls, Maryland:
[https://www.nps.gov/choh/planyourvisit/upload/Great-Falls-Hiking-Map.pdf](https://www.nps.gov/choh/planyourvisit/upload/Great-Falls-Hiking-Map.pdf)
**Directions to Carderock Picnic Grounds Parking at Carderock Recreation Area:**
From I-495, take the exit for Clara Barton Pkwy, continue on the Pkwy until you see the exit for Carderock near the Naval Surface Warfare Center. After exiting at Carderock, you will pass under the towpath tunnel. Turn left after going under the towpath tunnel and continue into the picnic grounds parking lot.
**GPS 38.97122, -77.19874**
Any questions, please message me here or text/call @202-528-0456. If you text me, please include your name.
Beaverdam Reservoir Park- Loudoun County (Rating: C)
You must read the following NVHC Sign-in Sheet Statement/Liability Disclaimer, [https://nvhc.com/signin.pdf](https://nvhc.com/signin.pdf) and then answer the question that you will see when you RSVP with "I accept" to be permitted on the hike.
This is a 7.75 mile hike with 250 feet of elevation gain around [Beaverdam Reservoir](https://www.theburn.com/2024/10/16/sneak-preview-of-loudouns-new-reservoir-park/) in the Brambleton/Ashburn area of Loudoun County. At the halfway point we will stop for a snack break. Trails may be muddy.
GPS Coordinates for Reservoir Park: 39.003061, -77.535332
[https://maps.app.goo.gl/EUJMVEAaVHP7gwA5A](https://maps.app.goo.gl/EUJMVEAaVHP7gwA5A)
Meet at the parking lot near the Visitor Center.
***Google Maps may try to take you into the park on Alford Rd, do not go that way you cannot get in that way as it is gated. From the main road you need to turn where the sign says NRPA then continue straight in past the ballfield parking lot until you see the entrance sign to Reservoir Park, then follow to Visitor Center.***
We hike at a pace of 2.5 to 3.0 mph while moving.
Dogs are permitted on this hike in accordance with the NVHC Dog Policy.
[https://tinyurl.com/nvhcdogpolicy](https://tinyurl.com/nvhcdogpolicy)
Leader: Ed Brimberg 703-944-9920
Park Entry Fee: $0.00
AllTrails Map for hike: [https://www.alltrails.com/explore/recording/activity-may-5-2025-72cad9e?u=i&sh=7cs7ov](https://www.alltrails.com/explore/recording/activity-may-5-2025-72cad9e?u=i&sh=7cs7ov)








