This project implements a Kafka-inspired message processing system in pure Java. It focuses on backpressure, bounded concurrency, disk persistence, and graceful shutdown.

Modelling carshop with thread-buyer and thread-producer. Using wait()-notify() for access to seller. 2nd: Reentrant lock

A simple learning project that demonstrates ways to solve such multithreading problems as race conditions, deadlocks, and producer-consumer problem.

Implementation of two multithreading patterns: 1. Supervisor program with state management using `wait/notify` and 2. Message queue with producer-consumer using `java.util.concurrent` . A practical demonstration of thread coordination and synchronization.