All Tutorials

Direct Memory and Off-Heap Memory in Java

Learn about direct memory and off-heap memory in Java. Explore how they work, benefits, pitfalls, JVM tuning, and real-world performance optimizations

JVM ArchitectureJava Garbage CollectionJIT CompilerJVM TuningHotSpot JVMJVM Memory ModelJVM InternalsGC Algorithms

String Pool and Interning in JVM: How It Works

Learn how the JVM string pool and interning work. Explore memory optimization, performance benefits, pitfalls, and best practices for Java developers

JVM ArchitectureJava Garbage CollectionJIT CompilerJVM TuningHotSpot JVMJVM Memory ModelJVM InternalsGC Algorithms

What is Garbage Collection in Java? Concepts and Motivation

Understand Java garbage collection: concepts, motivation, algorithms, tuning, and best practices to optimize performance and memory efficiency in JVM apps

JVM ArchitectureJava Garbage CollectionJIT CompilerJVM TuningHotSpot JVMJVM Memory ModelJVM InternalsGC Algorithms

The JVM Garbage Collection Process: Reachability and Root Sets

Learn how JVM garbage collection works through reachability analysis and root sets. Understand GC fundamentals, algorithms, tuning, and best practices

JVM ArchitectureJava Garbage CollectionJIT CompilerJVM TuningHotSpot JVMJVM Memory ModelJVM InternalsGC Algorithms

Minor vs Major GC: Young Generation and Old Generation Explained

Learn the differences between Minor and Major Garbage Collection in Java. Explore young vs old generation, GC algorithms, tuning, and performance tips

JVM ArchitectureJava Garbage CollectionJIT CompilerJVM TuningHotSpot JVMJVM Memory ModelJVM InternalsGC Algorithms

Stop-the-World Events: Why Your Application Pauses

Understand Stop-the-World events in the JVM. Learn why applications pause, how GC triggers them, performance impacts, and tuning strategies to reduce latency

JVM ArchitectureJava Garbage CollectionJIT CompilerJVM TuningHotSpot JVMJVM Memory ModelJVM InternalsGC Algorithms

Reference Types and GC: Strong, Weak, Soft, and Phantom References

Understand strong, weak, soft, and phantom references in Java. Learn their role in JVM garbage collection, memory optimization, and real-world use cases

JVM ArchitectureJava Garbage CollectionJIT CompilerJVM TuningHotSpot JVMJVM Memory ModelJVM InternalsGC Algorithms

Finalization in Java: Why finalize() is Deprecated and Alternatives

Learn why finalize() is deprecated in Java, the problems it caused, and modern alternatives like try-with-resources, AutoCloseable, and Cleaner API

JVM ArchitectureJava Garbage CollectionJIT CompilerJVM TuningHotSpot JVMJVM Memory ModelJVM InternalsGC Algorithms

Mark-and-Sweep Algorithm: Foundations of Garbage Collection

Learn the Mark-and-Sweep algorithm in Java Garbage Collection. Understand its process, pros, cons, and role in JVM memory management

JVM ArchitectureJava Garbage CollectionJIT CompilerJVM TuningHotSpot JVMJVM Memory ModelJVM InternalsGC Algorithms

Copying and Compacting Collectors Explained

Understand copying and compacting collectors in Java GC. Learn how they reduce fragmentation, improve memory efficiency, and impact JVM performance

JVM ArchitectureJava Garbage CollectionJIT CompilerJVM TuningHotSpot JVMJVM Memory ModelJVM InternalsGC Algorithms