Day of the Dukentacle: The Best Way to Predict the Future Is to Build It Yourself
summary
Practical tour of Java 22 preview features: unnamed variables, classless scripts, and statements-before-super to allow initialization before superclass calls; plus a redesign of string templates toward reusable validated artifacts. Demos use JDK 22, HTMX for server-side HTML, and the Memory API (Arena and MemorySegment) to map files off-heap; a live benchmark loads ~8 GB off-heap and computes aggregates with varhandle-based layouts to demonstrate streamable, large-scale performance.
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