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Java 25 addresses long-standing performance myths with three major improvements framed as a 'Triforce': Ahead-Of-Time (AOT) caching (JEPs 483, 514, 515) that can cut startup times by up to 50%; Garbage Collector enhancements including generational Shenandoah (JEP 521), generational ZGC (JEP 474), and G1 improvements for JNI workloads (JEP 423); and Compact Object Headers (JEPs 450, 519) that reduce heap size by up to 22% and CPU time by 8%. The piece uses the 40th anniversary of The Legend of Zelda as a metaphor for Java's evolution from a slow enterprise language to a modern, high-performance platform.

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The Triforce of Performance Improvements in Java 25

From 8-Bit to Open World – A Parallel Journey Java Has Leveled Up (Evolved)