How to find a class of type variable in Java?

How can I find the class of XOperation via Reflection API in Java?

public interface Operation<P extends Parameters> {
}

public class XParameters implements Parameters<XOperation> {
}

I'm trying to implement this method.

public <O extends Operation<P>, P extends Parameters> O getOperationByParametersClass(Class<P> parametersClass) {
    // TODO
}