https://devops-monk.com/tags/java8/Recent content in Java8 on Devops MonkHugoen-usMon, 04 May 2026 00:00:00 +0000https://devops-monk.com/tutorials/java17/migration-guide/Mon, 04 May 2026 00:00:00 +0000https://devops-monk.com/tutorials/java17/migration-guide/Why Migrate to Java 17? Java 17 is the current recommended enterprise LTS. Key reasons to migrate now: Spring Boot 3.x requires Java 17 — the entire Spring ecosystem is moving here Java 11 extended support ends around 2026 depending on your vendor Java 8 mainstream support ended in 2019; extended support ended 2030 for Oracle JDK but active vulnerability exposure is increasing Language features: Records, Sealed Classes, Text Blocks, Pattern Matching, Switch Expressions — all available in Java 17 Security: Strong JDK encapsulation closes years of internal API exposure used in exploits Recommended Migration Path Java 8 → Java 11 → Java 17 Do not jump directly from Java 8 to Java 17 in one step if your codebase is large or has many third-party dependencies.https://devops-monk.com/tutorials/java21/migration-guide/Mon, 04 May 2026 00:00:00 +0000https://devops-monk.com/tutorials/java21/migration-guide/Why Migrate Now? Java 21 is the current Long-Term Support (LTS) release, and it is the most feature-rich LTS since Java 8. LTS releases receive security patches and bug fixes for years. Java 11, the previous widely-used LTS, reached its extended support window end depending on your vendor. Java 8 mainstream support ended in 2019. More concretely, Java 21 brings: Virtual Threads — drop-in replacement for platform threads, enabling massive concurrency without reactive rewrites Pattern Matching for switch and records — eliminating entire categories of verbose, error-prone instanceof/cast chains Sequenced Collections — a unified API for ordered collection types Generational ZGC — sub-millisecond GC pauses at any heap size These are not incremental improvements.