Copycat is a cross platform file synchronization tool for local file systems similar to robocopy for Windows. It's written in Java but compiled to native binaries for Windows/Linux/MacOS using the ...

Learn about the best practices for concurrency in Java to ensure your multi-threaded applications are efficient, synchronized, and error-free. Concurrency in Java is the ability of multiple threads to ...

A company asked me to do an independent performance review of their Spring Boot application. The problem: response times randomly spiking from 50ms to 5 seconds. No errors. No CPU spikes. Database ...

RxJava is a Java VM implementation of Reactive Extensions: a library for composing asynchronous and event-based programs by using observable sequences. It extends the observer pattern to support ...

All homework and the first project is to be done individually. The second and third programming projects will be done in groups of two students. The later projects are done in groups for two reasons.

Virtual threads, revealed in Java's Project Loom and generally available with the Java 21 LTS, promise unparalleled scalability, simplified asynchronous coding and more efficient resource utilization.

Today, we’ll dive into another crucial topic in multithreading—synchronization—and understand how Java handles multiple threads accessing shared resources. We’ll also introduce the concept of a mutex ...

A callback operation in Java is one function that is passed to another function and executed after some action is completed. A callback can be executed either synchronously or asynchronously. In the ...

Fatih is a freelance security researcher, penetration tester, and malware analyst. Since 2017, he has been actively working with many different software languages and technologies, especially C, C++, ...

Learn how to use lazy instantiation and eager instantiation in your Java programs. Which approach is better? It depends on the scenario. When instantiating Java objects that are expensive in terms of ...