Serial vs Parallel GC: Throughput-Focused Collectors
A practical guide to Serial and Parallel garbage collectors - how they work, when to use each, throughput trade-offs, and production tuning tips.
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JVM Stack Walking API: Fast Stack Traversal and Security Context
A guide to the JVM Stack Walking API showing how to efficiently traverse stack frames, access local variables, and extract security context without the overhead of traditional stack trace capture.
Java Synchronization Primitives: synchronized, wait/notify, and Locks
Understanding Java synchronization: synchronized blocks, wait/notify, ReentrantLock, ReadWriteLock, StampedLock, and common concurrency patterns.
Java Thread Lifecycle: States, start, yield, sleep, interrupt, join
Understanding Java thread lifecycle management: thread states, start, yield, sleep, interrupt, join, daemon threads and common pitfalls.
Tiered Compilation in the JVM
Explore C1 and C2 JIT compilers, on-stack replacement, and deoptimization handling in the JVM's tiered compilation model.
ZGC and Shenandoah: Ultra-Low Latency Garbage Collectors
How ZGC and Shenandoah achieve sub-millisecond pause times through concurrent operations and load barriers, without stopping your application.
Abstract Classes in Java
Learn about partially implemented classes that define contracts for subclasses using abstract methods and concrete implementations.
Arithmetic Operators in Java
Master Java arithmetic operators: addition, subtraction, multiplication, division, and modulo with integer division gotchas and operator precedence explained.
Array Basics in Java
Learn Java array fundamentals: declaration, initialization, element access, and the length property explained simply.
ArrayList in Java
Learn ArrayList: dynamic resizing, internal array management, when to choose ArrayList over plain arrays, and performance trade-offs.