What do the security manager, applet API, finalization, and primitive wrapper constructors have in common? What about CMS, Nashorn, RMI activation, and biased locking? And what does jdeprscan have to do with all of this? Make sure to check the show-notes ..read more

Get advice on why, when, when not, and how to use Java modules in real life for your Java projects ..read more

The OpenJDK Quality Group is promoting the testing of FOSS projects with OpenJDK builds as a way to improve the overall quality of the release. This heads-up is part of a regular communication sent to the projects involved. To learn more about the program, and how-to join, please check here. JDK 21: JMX Subject Delegation & Fine-grained Security Deprecation JMX has some features that rely on Security Manager APIs which are deprecated for removal (see JEP 411). These features are "Subject Delegation" and "Fine-grained Security", which both seem to be generally unused, and would require sig ..read more

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The Z Garbage Collector (ZGC) is a scalable low-latency garbage collector providing sub-millisecond max pause times. Get an overview of the design principles behind ZGC, how it performs, and how to best use it to reduce latency for your application. We also look at the ongoing work to make ZGC a generational garbage collector ..read more

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A summary of what happened in 2022 and what will probably happen in 2023 for Projects Amber (pattern matching, relaxed main and super() and much, much more), Galahad & Leyden (foundation and first steps), Lilliput (64bit object headers; on to 32bit), Loom (previewed virtual threads, incubated structured concurrency and scoped values; work on finalizing all that plus less pinning), Panama (vector API is stable and waits for Valhalla, foreign APIs are previewing; FFM API improvements and work towards finalization), and Valhalla (EA builds; revisions). Make sure to check the show-notes ..read more

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