# Package java.lang.invoke

- Class Summary
  Class | Description
  --- | ---
  CallSite | A `CallSite` is a holder for a variable `MethodHandle`, which is called its `target`.
  LambdaMetafactory | Methods to facilitate the creation of simple "function objects" that implement one or more interfaces by delegation to a provided `MethodHandle`, possibly after type adaptation and partial evaluation of arguments.
  MethodHandle | A method handle is a typed, directly executable reference to an underlying method, constructor, field, or similar low-level operation, with optional transformations of arguments or return values.
  MethodHandles | This class consists exclusively of static methods that operate on or return method handles.
  MethodHandles.Lookup | A lookup object is a factory for creating method handles, when the creation requires access checking.
  MethodType | A method type represents the arguments and return type accepted and returned by a method handle, or the arguments and return type passed and expected by a method handle caller.
  SerializedLambda | Serialized form of a lambda expression.

Copyright © 2025 API Design. All Rights Reserved.