Get closure information from Java functional interface

I'd like to be able to access closure environment information at runtime from a Java functional interface. For example, I'm passing in a lambda, say, (input) -> input + knownVariable to a function lambdaProcessor.

Now, from within lambdaProcessor, I'd like to be able to access the environment associated with this lamdba, and get the value of all the variables stored in this environment.

Is this possible? I don't mind having to create my own functional interface, or use reflection, etc.