| Package | Description | 
|---|---|
| java.lang.invoke | 
 The  
java.lang.invoke package contains dynamic language support provided directly by
 the Java core class libraries and virtual machine. | 
| Class and Description | 
|---|
| CallSite | 
| 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.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. 
 | 
| MutableCallSite
 A  
MutableCallSite is a CallSite whose target variable
 behaves like an ordinary field. | 
| SwitchPoint
 
 A  
SwitchPoint is an object which can publish state transitions to other threads. | 
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