#jvm

Articles tagged with #jvm

Java 21 to 25: Virtual Threads, Pattern Matching, and Structured Concurrency
Virtual threads replace thread pools for I/O work. Structured concurrency replaces CompletableFuture. Java 21 LTS is the biggest release since Java 8.
May 3, 202622 min read168
Java 14 to 17: Records, Sealed Classes, Text Blocks, and Pattern Matching
Records eliminated boilerplate. Sealed classes enforced type hierarchies. Pattern matching removed redundant casts. Java 17 LTS made it stable.
May 3, 202625 min read299
Java 8 to 11: Lambdas, Streams, Modules, and the End of Boilerplate
How lambdas, streams, Optional, and Java 9 modules transformed Java from verbose boilerplate to expressive, maintainable code
May 3, 202616 min read16
Spark Executor Sizing: Memory Model, Core Tuning, and GC Strategy
A deep dive into Spark's JVM memory regions, executor core arithmetic, G1GC vs ZGC trade-offs, and the config knobs that actually matter
Apr 19, 202637 min read202
How JVM Garbage Collection Works: Types, Memory Impact, and Tuning
From Minor GC to ZGC: how each Java garbage collector manages heap memory and what it means for your application's latency and throughput.
Apr 10, 202625 min read35
Java Memory Model Demystified: Stack vs. Heap
Where do your variables live? We explain the Stack, the Heap, and the Garbage Collector in simple terms.
Feb 10, 202614 min read40