I need a developer to implement a real-time chat functionality in my existing Java application. The chat should allow users to send and receive messages instantly within the app. Requirements: Must use Java for implementation. Real-time message delivery (instant send/receive). Seamless integration with the current app’s UI and backend. Clean, maintainable, and well-documented code. Deadline: 3 days Budget: $100 Please provide examples of previous similar work if available.