Oracle’s 2026 Java roadmap highlights preview releases for value types, code reflection, AOT compilation, and structured concurrency, detailing progress on Project Loom, Valhalla, Panama, Amber, and Babylon, while noting timelines, goals, and the uncertainty of exact release dates.
Modern Java introduces lambda expressions and the Stream API for functional programming, while upcoming projects—Loom’s virtual threads, Panama’s foreign function and memory API, and Valhalla’s value classes and generic specialization—address concurrency, native interop, and performance, dramatically enhancing developer productivity and language capabilities.
This article evaluates the performance of large language model (LLM) inference on the Java platform, examining llama2.java implementations that leverage Java Streams, the Vector API, Project Panama, and TornadoVM GPU acceleration, and compares them against native C versions across various model sizes.
Java 21, released on September 19 as a long‑term‑support release with eight years of Oracle support, introduces fifteen JEPs—including preview string templates, record patterns, switch pattern matching, virtual threads, scoped values, structured concurrency, foreign function & memory APIs, and a new sequenced‑collection interface—along with numerous performance, security, and deprecation updates, all illustrated with code examples.
This article introduces Java's Project Panama foreign function and memory API, showing how to use JDK 19 to call native C code from a simple Hello World program, covering linker setup, symbol lookup, function descriptors, memory sessions, and method handles with practical code examples.
