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Inside Java

by David Delabassee
Technology
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Latest episodes

  • "Immutable Data Beyond Value Classes" [AtA]

    October 29, 2026 · 54 min

    Object-Oriented Programming offers a lot of flexibility for modelling diverse domains but not all elements need that flexibility. Data, specifically, is often better modeled by simple, immutable types and while OOP does not prevent that…

  • "OpenJDK Bug Fixing, JavaOne, and JDK 28" [IJN]

    October 17, 2026 · 8 min

    On August 18th, 2026 a mail pops up on the hotspot-compiler-dev mailing list and it describes something that is not supposed to happen: a serious new bug in a JDK release candidate phase, just a few weeks before general availability…

  • "Security in Java" [AtA]

    September 24, 2026 · 33 min

    Given how prevalent Java is on web servers throughout the internet, security in Java is of critical importance. There's the security of the JDK itself, of course, which is overseen by the OpenJDK Security Group, which you should report JDK…

  • "AOT Caching - Netflix' Practice vs OpenJDK's Theory" [I/O]

    September 17, 2026 · 1 hr 11 min

    Java projects that want to reduce their launch times need to look into Java's new ahead-of-time capabilities. A training run is used to populate a cache that, in production, allows the JVM to short-circuit many operations, like class…

  • "Declassifying the Java 27 Release!" [IJN]

    September 10, 2026 · 16 min

    Java 27 is heading for release on September 15th. As with every release of the JDK there are a host of changes that will impact developers, from new features, to changes in behavior of existing features. In this episode of the Inside Java…

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  • "Operator Overloading with Type Classes" [AtA]

    August 27, 2026 · 42 min

    OpenJDK's Project Valhalla is improving Java's support for custom numerical types. That goes beyond value types and also encompasses explorations into operator support. While Java is extremely unlikely to ever allow arbitrary operator…

  • "Keeping Up with the Java Release Train" [I/O]

    August 20, 2026 · 34 min

  • "JSON API, Valhalla Progress, LTS ❤️ PQC" [IJN]

    August 15, 2026 · 10 min

    JEP 540 proposes to incubate a simple JSON API and is currently proposed to target JDK 28. The pull request for Project Valhalla's JEPs 401 and 539 were merged and value types are available as a preview feature in the latest JDK 28…

  • "Embracing Virtual Threads with Helidon" [I/O]

    August 6, 2026 · 14 min

    Helidon 4.4 was released in April 2026 and stands out from other web frameworks by embracing new Java features as early as possible, particularly virtual threads and ahead-of-time computation. It is also aiming to become an OpenJDK project…

  • "JIT Compiler From the Ground Up" [AtA]

    July 30, 2026 · 46 min

    While Java programs are deployed as bytecode, performance-relevant code will be compiled, at run time, to machine code whose performance rivals that of any other platform. In the HotSpot JVM, this is the job of the just-in-time compilers…

  • "AI Solutions with Spring AI 2.0 and Java" [I/O]

    July 23, 2026 · 20 min

    Spring AI 2.0 released in June 2026 and is one of several projects ensuring Java's continued strength in enterprise AI development. Here are some tips on deterministic agents, MCP servers and skills, prompt engineering, and where Java's…

  • "JDK 27 + Valhalla, Now! + Hackathon" [IJN]

    July 19, 2026 · 10 min

    JDK 27 entered Ramp-Down-Phase 1 in early June, so we can go over its features. Valhalla's first JDK Enhancement Proposal (401) will likely be part of JDK 28. Show off your Java ideas in the "Modern Java in the Wild" hackathon. There are…

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About the show

Inside Java is a podcast for Java Developers brought to you directly from the people that make Java at Oracle. We'll discuss the language, the JVM, OpenJDK, platform security, innovation projects like Loom and Panama, and everything in between.