REVISED A lookup object is a factory for creating method handles, when the creation requires access checking.
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.
A symbolic reference obtained by cracking a direct method handle into its consitutent symbolic parts.
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.
A VarHandle is a dynamically strongly typed reference to a variable, or to a parametrically-defined family of variables, including static fields, non-static fields, array elements, or components of an off-heap data structure.
The set of access modes that specify how a variable, referenced by a VarHandle, is accessed.
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