What are best practices for working with dynamic proxies?

Working with dynamic proxies in Java can greatly enhance your application's flexibility and performance. Here are some best practices to consider:

• Understand the Proxy Design Pattern: Ensure you have a clear understanding of what dynamic proxies are and how they fit into the Proxy design pattern.
• Use Interfaces: Always create dynamic proxies for interfaces rather than concrete classes. This allows the proxy to delegate method calls to the actual object.
• Keep Proxies Lightweight: Minimize the logic inside the proxy class to keep it efficient. The proxy should primarily handle delegation and possibly some cross-cutting concerns like logging.
• Handle Exceptions Gracefully: Ensure that your proxy is robust in handling exceptions that may arise during method invocation.
• Use Annotations for Configuration: Consider using annotations to provide configuration data to your proxy, making the implementation cleaner and more maintainable.
• Test Your Proxies: Always write unit tests for your proxies to ensure their behavior and interactions are as expected.