Candidate JEPs: Records and Sealed Types

Mark Reinhold announced two new closely related candidate JDK Enhancement Proposals (JEPs) on the OpenJDK amber-dev mailing list this week…

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java.lang.Record: Draft Specification

Work on proposed Java Records continues to proceed. Brian Goetz started three new threads on the OpenJDK amber-spec-experts mailing list…

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Draft JEP to Remove Deprecated CMS Garbage Collector

In the 10 April 2017 post “Java Garbage Collectors: When Will G1GC Force CMS Out?,” I discussed JEP 291 (“Deprecate…

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JEP 358: Helpful NullPointerExceptions

In the post “Better Default NullPointerException Messages Coming to Java?“, I summarized background details related to a draft JEP (at…

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Signs of JDK 14 Beginning to Appear

JDK 13 is currently in Rampdown Phase 1 (RDP 1), is scheduled to enter Rampdown Phase 2 (RDP 2) in…

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Project Valhalla: A First Look at LW2 Inline Types

I summarized some recent Project Valhalla LW2 “inline types” progress that was made public recently in my blog post “Valhalla…

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Valhalla LW2 Progress – Inline Types

There has been significant public-facing progress in the past few weeks (June/July 2019) for Project Valhalla‘s LW2 phase/prototype originally proposed…

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History and Motivations Behind Java’s Maligned Serialization

Issues related to Java’s serialization mechanism are well-advertised. The entire last chapter of Effective Java 1st Edition (Chapter 10) and…

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JDK 13: VM.events Added to jcmd

CSR (Compatibility and Specification Review) JDK-8224601 [“Provide VM.events diagnostic command”] is implemented in JDK 13 as of JDK 13 Early-Access…

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