- All Implemented Interfaces:
Serializable
,Comparable<MethodHandles.Lookup.ClassOption>
,Constable
- Enclosing class:
- MethodHandles.Lookup
public static enum MethodHandles.Lookup.ClassOption extends Enum<MethodHandles.Lookup.ClassOption>
The set of class options that specify whether a hidden class created by
Lookup::defineHiddenClass
method is dynamically added as a new member
to the nest of a lookup class and/or whether a hidden class has
a strong relationship with the class loader marked as its defining loader.- Since:
- 15
-
Nested Class Summary
Nested classes/interfaces declared in class java.lang.Enum
Enum.EnumDesc<E extends Enum<E>>
-
Enum Constant Summary
Enum Constants Enum Constant Description NESTMATE
Specifies that a hidden class be added to nest of a lookup class as a nestmate.STRONG
Specifies that a hidden class has a strong relationship with the class loader marked as its defining loader, as a normal class or interface has with its own defining loader. -
Method Summary
Modifier and Type Method Description static MethodHandles.Lookup.ClassOption
valueOf(String name)
Returns the enum constant of this type with the specified name.static MethodHandles.Lookup.ClassOption[]
values()
Returns an array containing the constants of this enum type, in the order they are declared.
-
Enum Constant Details
-
NESTMATE
Specifies that a hidden class be added to nest of a lookup class as a nestmate.A hidden nestmate class has access to the private members of all classes and interfaces in the same nest.
- See Also:
Class.getNestHost()
-
STRONG
Specifies that a hidden class has a strong relationship with the class loader marked as its defining loader, as a normal class or interface has with its own defining loader. This means that the hidden class may be unloaded if and only if its defining loader is not reachable and thus may be reclaimed by a garbage collector (JLS 12.7).By default, a hidden class or interface may be unloaded even if the class loader that is marked as its defining loader is reachable.
- See Java Language Specification:
-
12.7 Unloading of Classes and Interfaces
-
-
Method Details
-
values
Returns an array containing the constants of this enum type, in the order they are declared.- Returns:
- an array containing the constants of this enum type, in the order they are declared
-
valueOf
Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)- Parameters:
name
- the name of the enum constant to be returned.- Returns:
- the enum constant with the specified name
- Throws:
IllegalArgumentException
- if this enum type has no constant with the specified nameNullPointerException
- if the argument is null
-