Advanced Java & JVM Internals Roadmap
A comprehensive learning path for senior Java engineers to master JVM internals, memory management, bytecode manipulation, concurrency patterns, and performance tuning.
Posts tagged with #concurrency
Java Atomics and VarHandle: Low-Level Concurrency
Understanding Java atomic operations: AtomicInteger, AtomicReference, VarHandle, compareAndSet, atomics vs locks, and lock-free programming patterns.
Java Concurrent Collections: ConcurrentHashMap, BlockingQueue
Java concurrent collections deep dive: ConcurrentHashMap, BlockingQueue, CopyOnWriteArrayList, ConcurrentLinkedQueue, and choosing the right structure.
Java Memory Model: Happens-Before, Volatile, and Final Fields
Understanding happens-before guarantees, volatile field semantics, and final field safety in the Java Memory Model for correct concurrent code.
java.util.concurrent: Thread Pools, ForkJoinPool, Synchronizers
Master Java's java.util.concurrent: Executors, ForkJoinPool, CountDownLatch, CyclicBarrier, Phaser, and thread pool patterns for high-performance apps.
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.
PostgreSQL Locking and Concurrency Control
Learn about shared vs exclusive locks, lock escalation, deadlocks, optimistic vs pessimistic concurrency control, and FOR UPDATE clauses.
Isolation Levels: READ COMMITTED Through SERIALIZABLE
Understand READ COMMITTED, REPEATABLE READ, and SERIALIZABLE isolation levels, read vs write anomalies, and SET TRANSACTION syntax.