https://devops-monk.com/tags/metaspace/Recent content in Metaspace on Devops MonkHugoen-usMon, 04 May 2026 00:00:00 +0000https://devops-monk.com/tutorials/java8/jvm-improvements/Mon, 04 May 2026 00:00:00 +0000https://devops-monk.com/tutorials/java8/jvm-improvements/PermGen Removal: The End of a Classic Error Before Java 8, the JVM heap was divided into several regions. One of them — Permanent Generation (PermGen) — held class metadata, interned strings, and bytecode. PermGen had a fixed maximum size (defaulting to 64–256 MB depending on the JVM version) and could not grow beyond it. The result: applications that loaded many classes (frameworks with heavy reflection, dynamic class generation, long-lived application servers) routinely threw: