Christoph Langer

OpenJDK Committer and SAPMachine Guy

[Christoph Langer @TheRealClanger]

@traderepublic Meine Frage: Warum ist der Support so schlecht. Meine App ist unbenutzbar geworden. Und heute kann ich nicht mal mehr Orders löschen… Was ist los?

[SapMachine @SweetSapMachine]

SapMachine Releases 24.0.1, 21.0.7 and 17.0.15 are available now. Check it out on
👉https://t.co/uzk23Bd93F👈

[SapMachine @SweetSapMachine]

SapMachine 24 is ready and ships through all our known channels. 🚀https://t.co/y4bIiBPKuW

[SAP Open Source @sapopensource]

Linux 6.12 introduces scheduler extensions—enabling custom schedulers via eBPF! 🚀 Learn how we used this for concurrency testing in OpenJDK, stopping & starting threads inside the kernel. Don't miss the #FOSDEM2025 session with @parttimen3rd.
🔗 https://t.co/zxVfy1Yk1O.

[SAP Open Source @sapopensource]

Struggling with Java profiling trade-offs?Stability vs. precision is a challenge! Learn how to combine JFR, eBPF probes, & async sampling for accurate profiling. Don't miss the #FOSDEM2025 talk from @BachorikJ and @parttimen3rd on the future of JVM! 🔗 https://t.co/Zsi8aJsP5W.

[SAP Open Source @sapopensource]

Java’s Foreign Function & Memory API (JEP 454) is changing how we call native code! 🔥 In this session, we explore FFI internals, calling conventions, stack layouts & the future of Java-native integration. Don't miss it! #FOSDEM2025
🔗 https://t.co/sFSq3Vl2V8.

[SapMachine @SweetSapMachine]

The SapMachine January 2025 updates are available! 🥳

[SapMachine @SweetSapMachine]

https://t.co/qCSjwjtqUU July 2024 releases are out on all channels. Have fun patching.

[SapMachine @SweetSapMachine]

Virtual Threads in @java have immense potential to change the way server applications run. But it will take time to mature, and there are a few pitfalls to be aware of: Visit https://t.co/9gDdvg5WFy to read more.

[SapMachine @SweetSapMachine]

SapMachine April 2024 update delivered. Find our binaries for 22.0.1, 21.0.3, 17.0.11 and 11.0.23 on https://t.co/qCSjwjsT5m, https://t.co/y5WgIv0D2I, https://t.co/EEHqPWLSR7 or wherever you are used to consume from. 🙌

[Marcus Hirt @hirt]

JMC 9.0 Release Candidate was just tagged!
https://t.co/aTsnvfoNLA

It is getting closer...

[SapMachine @SweetSapMachine]

Service Reminder: Did you already update to the latest SapMachine October updates? For instance latest and greatest SapMachine 21.0.1? It's all available in the well known channels...
https://t.co/7G6Nh1S24l

[SapMachine @SweetSapMachine]

SapMachine 21 Binaries are now available in all known channels. Happy Looming. 😊

https://t.co/kfeHltCCg5

[Christoph Langer @TheRealClanger]

@pressron @volker_simonis @parttimen3rd @mreinhold @kuksenk0 @BrianGoetz But the process requires guidance from the platform architects, also in the early stages. We‘ve not only worked on this the last few months with @eosterlund_fisk but efforts are going on far longer. The JEP was filed in April 2022, which wasn‘t the first step.

[Johannes Bechberger @parttimen3rd]

Terrible news: I just read here on Twitter that my JEP is cancelled

[Volker Simonis @volker_simonis]

At OpenJDK Committers Workshop: @mreinhold, @pressron: sorry, but there will never be an improved AGCTv2 in OpenJDK! The one and only OpenJDK profiler will be JFR.
@kuksenk0: the Oracle performance team uses JFR several times a year but AsyncProfiler/AGCT several times per day...

[SapMachine @SweetSapMachine]

Learn how to do a basic GC analysis to troubleshoot a problem with SAPMachine and our custom JFR configurations: an insightful guide by our colleague Andreas Steiner over on the @SAPCommunity blogs (https://t.co/quIFQBnUpv)