UdpInvoker

If you're looking for an easier way to achieve Java remoting between applications, then you might want to try out UdpInvoker. This library offers zero-configuration and hassle-free communication. You won't need to use external utilities or perform complicated configurations because all you need is to extend the "Invokable" class. With just that simple step, you'll be ready to remotely access your public methods.

One great advantage of using UdpInvoker is that it leverages Java Reflection to handle the plumbing for you. This means that you don't have to worry about the low-level details of how your applications communicate with each other. The library is based on UDP multicast, so it's ideal for those instances where multiple Java Virtual Machines need to communicate, whether they're on the same or different machines on the network.

If you're concerned about security, UdpInvoker supports encryption, and it can use open-source projects such as Jasypt and Java Cryptography Extension for stronger encryption algorithms. Additionally, UdpInvoker offers publish/subscribe functionality, which means that you can achieve asynchronous message delivery by subscribing to topics and allowing for "push" communication.

Another feature of UdpInvoker is service discovery. This means that your applications can detect each other and their available services in real-time. Overall, with its ease of use, reliability, and security features, UdpInvoker can greatly simplify how your Java applications communicate with one another.