Java: Memory cleanup in Java 9–14
summary
Overview of Java garbage collectors from Java 9–14: compares the legacy CMS collector (removed in Java 14) with its successor G1GC (default since Java 8), discusses recent changes to G1 in Java 9–14 and whether it’s mature, and evaluates alternatives—Shenandoah (in OpenJDK), ZGC, and the Epsilon no-op collector. Covers when CMS still worked, the trade-offs and roles of G1, Shenandoah, ZGC and Epsilon, and whether mixing or replacing collectors makes sense.
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