- workshop-discuss - openjdk.org

Re: OpenJDK Committers' Workshop around FOSDEM 2026?
by Hohensee, Paul 08 Dec '25

08 Dec '25

Another possibility is attaching to JavaOne. From: "Bechberger, Johannes" <johannes.bechberger(a)sap.com> Date: Friday, December 5, 2025 at 3:23 AM To: "Hohensee, Paul" <hohensee(a)amazon.com>, Volker Simonis <volker.simonis(a)gmail.com>, "workshop-discuss(a)openjdk.org" <workshop-discuss(a)openjdk.org> Subject: RE: OpenJDK Committers' Workshop around FOSDEM 2026? That’s a good idea, as there is still no news on the committers workshop. Regards Johannes On 18.11.25, 23:49, "workshop-discuss" <workshop-discuss-retn(a)openjdk.org> wrote: Perhaps attach to Jfokus instead? Paul On 11/11/25, 1:27 AM, "workshop-discuss on behalf of Volker Simonis" <workshop-discuss-retn(a)openjdk.org<mailto:workshop-discuss-retn@openjdk.org> <mailto:workshop-discuss-retn@openjdk.org<mailto:workshop-discuss-retn@openjdk.org> <mailto:workshop-discuss-retn@openjdk.org<mailto:workshop-discuss-retn@openjdk.org>>> on behalf of volker.simonis(a)gmail.com<mailto:volker.simonis@gmail.com> <mailto:volker.simonis@gmail.com<mailto:volker.simonis@gmail.com> <mailto:volker.simonis@gmail.com<mailto:volker.simonis@gmail.com>>>> wrote: Hello, The OpenJDK Committers’ Workshop page at [1] reads: "Stay tuned for our next edition, likely in Brussels in February 2026." However, it turns out that there will be no Free Java Dev Room at FOSDEM 2026 [2]. What does this mean for a potential OpenJDK Committers' Workshop in Brussels in February 2026? It would be great to get some definitve answers to this question in order to simplify planning for 2026. Thank you and best regards, Volker [1] https://eur03.safelinks.protection.outlook.com/?url=https%3A%2F%2Fopenjdk.o…<https://openjdk.org/workshop> <https://eur03.safelinks.protection.outlook.com/?url=https%3A%2F%2Fopenjdk.o…><https://openjdk.org/workshop> <https://eur03.safelinks.protection.outlook.com/?url=https%3A%2F%2Fopenjdk.o…<https://openjdk.org/workshop> <https://eur03.safelinks.protection.outlook.com/?url=https%3A%2F%2Fopenjdk.o…>><https://openjdk.org/workshop> [2] https://eur03.safelinks.protection.outlook.com/?url=https%3A%2F%2Ffosdem.or…<https://fosdem.org/2026/schedule/tracks/> <https://eur03.safelinks.protection.outlook.com/?url=https%3A%2F%2Ffosdem.or…><https://fosdem.org/2026/schedule/tracks/> <https://eur03.safelinks.protection.outlook.com/?url=https%3A%2F%2Ffosdem.or…<https://fosdem.org/2026/schedule/tracks/> <https://eur03.safelinks.protection.outlook.com/?url=https%3A%2F%2Ffosdem.or…>><https://fosdem.org/2026/schedule/tracks/>

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Re: OpenJDK Committers' Workshop around FOSDEM 2026?
by Hohensee, Paul 05 Dec '25

05 Dec '25

Perhaps attach to Jfokus instead? Paul On 11/11/25, 1:27 AM, "workshop-discuss on behalf of Volker Simonis" <workshop-discuss-retn(a)openjdk.org <mailto:workshop-discuss-retn@openjdk.org> on behalf of volker.simonis(a)gmail.com <mailto:volker.simonis@gmail.com>> wrote: Hello, The OpenJDK Committers’ Workshop page at [1] reads: "Stay tuned for our next edition, likely in Brussels in February 2026." However, it turns out that there will be no Free Java Dev Room at FOSDEM 2026 [2]. What does this mean for a potential OpenJDK Committers' Workshop in Brussels in February 2026? It would be great to get some definitve answers to this question in order to simplify planning for 2026. Thank you and best regards, Volker [1] https://openjdk.org/workshop <https://openjdk.org/workshop> [2] https://fosdem.org/2026/schedule/tracks/ <https://fosdem.org/2026/schedule/tracks/>

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OpenJDK Committers' Workshop around FOSDEM 2026?
by Volker Simonis 11 Nov '25

11 Nov '25

Hello, The OpenJDK Committers’ Workshop page at [1] reads: "Stay tuned for our next edition, likely in Brussels in February 2026." However, it turns out that there will be no Free Java Dev Room at FOSDEM 2026 [2]. What does this mean for a potential OpenJDK Committers' Workshop in Brussels in February 2026? It would be great to get some definitve answers to this question in order to simplify planning for 2026. Thank you and best regards, Volker [1] https://openjdk.org/workshop [2] https://fosdem.org/2026/schedule/tracks/

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OpenJDK Committers' Workshop around FOSDEM 2025?
by Volker Simonis 22 Nov '24

22 Nov '24

Hello, Same procedure as every year :) Will there be a OpenJDK Committers' Workshop in Bruxelles before (preferably) or after FOSDEM 2025 now that the Free Java Dev room for FOSDEM 2025 [1] has been announced? Thank you and best regards, Volker [1] https://wiki.debian.org/Java/DevJam/2025/Fosdem

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OpenJDK Committers’ Workshop: Monday, 3 February 2025
by Mark Reinhold 22 Nov '24

22 Nov '24

The eighth OpenJDK Committers’ Workshop will be held right after FOSDEM on Monday, 3 February 2025, at Oracle’s Belgium office, Medialaan 50/A, 1800 Vilvoorde, Belgium. Vilvoorde is about 10 km (6 miles) from central Brussels, and reachable from there by both car and mass transit. We’ll run the entire day as an unconference, with plenty of time to discuss both technical and community issues. We’ll have plenary sessions as well as some parallel sessions, to allow time for the discussion of specialized topics that are not of broad interest. There will be no fee to attend but space is limited, so we ask that you register in advance. As at previous Workshops, preference will be given to Committers with a strong record of past contributions, though some space will be made for new Committers who have a strong potential for ongoing future contributions. The venue will open at 0900. We’ll start at 0930 and finish by 1630. Food will not be provided, but there is a restaurant nearby for coffee and lunch. If you’d like to attend, please send a short e-mail message including your full name to workshop-reg(a)openjdk.org This information will be used for registration purposes only and will not be shared outside of Oracle. We’ll try to reply to each request within 48 hours. The Workshop is organized by: Andrew Haley (Red Hat) Doug Lea (SUNY Oswego) Stuart Marks (Oracle) Liam Miller-Cushon (Google) Mark Reinhold (Oracle) Dalibor Topic (Oracle) Johan Vos (Gluon) For further information: https://openjdk.org/workshop - Mark

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OpenJDK Committers’ Workshop: Thursday-Friday, 8-9 August 2024
by Mark Reinhold 06 May '24

06 May '24

Oracle will host the seventh OpenJDK Committers’ Workshop during the second week of August, immediately after the JVM Language Summit [1], at Oracle’s campus in Santa Clara, California, USA. The entire workshop will be an unconference, with plenty of time to discuss both technical and community issues. We’ll have plenary sessions as well as some parallel sessions, to allow time for the discussion of specialized topics that are not of broad interest. We’ll start on Thursday morning at 9:00 and finish on Friday, just after lunch. Space is limited, due to the size of the venue, so we ask that you register in advance. As at past Workshops, preference will be given to Committers with a strong record of past contributions, though some space will be made for new Committers who have a strong potential for ongoing future contributions. For further information: https://openjdk.org/workshop The Workshop is organized by: Andrew Haley (Red Hat) Doug Lea (SUNY Oswego) Liam Miller-Cushon (Google) Mark Reinhold (Oracle) Dalibor Topic (Oracle) Johan Vos (Gluon) - Mark

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Workshop topic: Archive of JDK EA tagged binaries
by Chris Hegarty 24 Jan '24

24 Jan '24

Hi, I would like to propose the following topic for the workshop: Title: Archive of JDK EA tagged binaries Abstract: Projects that keep up to date with the latest JDK releases, e.g. upon release immediately adopt JDK 21, then 21.0.1, then 21.0.2, then 22, etc, would benefit greatly from archived tagged builds. For mainline EA releases, these builds are available throughout the development cycle, but no archive is available. For update releases, the benefit of EA testing is somewhat less valuable since the CPU fixes are not available until post GA, but still EA testing can catch non-CPU related issues. An archive is beneficial as it significantly improves the ability to track down development-time bugs (before they are shipped), both in terms of: 1. performing a bisect to narrow down when a bug or change in behaviour was introduced, and 2. allowing non-JDK savvy devs to track down a bug or change in behaviour Both the above can be done by doing self-builds, but this takes much longer and is not something that the average (!) Java dev is comfortable doing. Finally, the model of adopting the latest JDK is fantastic for moving the platform and ecosystem forward, let's support it in whatever way we can. Length: short Biography: Chris Hegarty, OpenJDK and Lucene committer, Software Engineer at Elastic Thanks, Chris. [*] Adoptium has some limited support for update release nightlies.

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OpenJDK Committers’ Workshop, 2 February 2024
by Mark Reinhold 10 Jan '24

10 Jan '24

The sixth OpenJDK Committers’ Workshop will be held right before FOSDEM on Friday, 2 February 2024 at Oracle’s Belgium office, Medialaan 50/A, 1800 Vilvoorde, Belgium. Vilvoorde is about 10 km (6 miles) from central Brussels, and reachable from there by both car and mass transit. There will be no fee to attend but space is limited, so we ask that you register in advance. As at previous Workshops, preference will be given to Committers with a strong record of past contributions, though some space will be made for new Committers who have a strong potential for ongoing future contributions. The venue will open at 0900. We’ll start at 0930 and finish by 1630. Food will not be provided, but there is a restaurant nearby for coffee and lunch. If you’d like to attend, please send a short e-mail message to workshop-reg(a)openjdk.org with your full name, employer (if any), and mobile phone number. This information will be used for registration purposes only and will not be shared outside of Oracle. We’ll try to reply to each request within 48 hours. Due to the security policy of the venue, if you do not register in advance then you will not be admitted to the building. The Workshop is organized by: Andrew Haley (Red Hat) Doug Lea (SUNY Oswego) Stuart Marks (Oracle) Liam Miller-Cushon (Google) Mark Reinhold (Oracle) Dalibor Topic (Oracle) Johan Vos (Gluon) For further information: https://openjdk.org/workshop - Mark

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OpenJDK Committers' Workshop around FOSDEM 2024?
by Volker Simonis 15 Nov '23

15 Nov '23

Hi, Now that the Free Java Dev room for FOSDEM 2024 [1] has been approved, are there any plans to organize an OpenJDK Committers' Workshop in Bruxelles before or after FOSDEM as well? Thanks, Volker [1] https://wiki.debian.org/Java/DevJam/2024/Fosdem

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Workshop proposal: Unbiasing safepoint based stackwalking
by Jaroslav Bachorík 04 Aug '23

04 Aug '23

Abstract: In the context of JVM profiling, historically, only two options were available: a safepoint-biased, supported stackwalking API (such as JMX, JVMTI, JDK StackWalker API) and the unbiased, but unsupported and potentially unsafe AsyncGetCallTrace. Java Enhancement-Proposal (JEP) 435 introduces an update to the platform, aiming to implement a safe, supported, and non-biased stackwalking mechanism. This modernization will allow for more precise profiling by eliminating traditional biases and constraints, providing a more accurate representation of Java application runtime behavior. Length: Short Bio: Jaroslav has been working on Java profilers for the last >15 years - first at Sun, then at Oracle and now at Datadog. He was a member of the serviceability team, taking care of mostly JMX and all things related. Recently, he has been spending time working on a profiling library providing features he wished were provided by JDK/JFR. He is consulting on the work on JEP 435 where the main developer is Johannes Bechberger. Johannes works as an OpenJDK developer at SAP. He is the creator of the JEP 435 proposal, reimagining the AsyncGetCallTrace API and blogging on profiling topics regularly. Blog: https://mostlynerdless.de/

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