Java

Master 10 proven Java-database patterns—connection pooling, batching, N+1 fixes, and more—to fix slow apps and prevent costly production crashes.

Master Java's Foreign Function and Memory API with 10 practical patterns for native calls, off-heap memory, and performance—no JNI required.

GraalVM Native Image guide: fix reflection, resource, and proxy errors, cut Java cold starts to milliseconds, and ship smaller, faster containers.

Explore Java's concurrency toolbox beyond `synchronized`. Learn when to use `ConcurrentHashMap`, `LongAdder`, `BlockingQueue`, and more to write faster, safer multithreaded code.

Discover Java Gatherers — the custom intermediate operations that fix what Streams can't. Learn batching, windowing, and more. Read the full guide.

Master Java microbenchmarking with JMH. Learn 10 proven patterns to get accurate performance results, avoid JIT pitfalls, and write benchmarks you can trust.

Learn how Java's built-in HttpClient simplifies REST calls, async requests, and WebSocket connections. Practical code examples included. Start building today.

Master Java Flight Recorder & JDK Mission Control with 10 proven profiling techniques. Debug production JVM issues faster using real data, not guesswork. Read now.

Discover 10 proven Java testing patterns—from AssertJ to Awaitility—that make test suites faster, reliable, and easier to maintain. Start writing better tests today.

Master Java pattern matching with 10 practical patterns that eliminate ClassCastExceptions and reduce boilerplate. Learn safer, cleaner code today.

Master Java virtual threads with 10 proven concurrency patterns. Learn to avoid thread pinning, use structured concurrency, and build high-throughput apps. Read now.

Master Java exception handling with proven patterns—custom exceptions, cause chaining, layered handling, and more. Build resilient systems that fail gracefully. Read now.