Module java.base
Package java.lang.classfilePREVIEW

# Interface TypeAnnotation.SupertypeTarget

All Superinterfaces:
  `TypeAnnotation.TargetInfoPREVIEW`

Enclosing interface:
  `TypeAnnotationPREVIEW`

public static sealed interface TypeAnnotation.SupertypeTarget extends TypeAnnotation.TargetInfoPREVIEW
`SupertypeTarget` is a preview API of the Java platform.
Programs can only use `SupertypeTarget` when preview features are enabled.
Preview features may be removed in a future release, or upgraded to permanent features of the Java platform.
Indicates that an annotation appears on a type in the extends or implements clause of a class or interface declaration.

Since:
  22

- ## Method Summary

  Modifier and Type
  Method
  Description
  `int`
  `supertypeIndex()`
  JVMS: A supertype_index value of 65535 specifies that the annotation appears on the superclass in an extends clause of a class declaration.

  ### Methods declared in interface java.lang.classfile.TypeAnnotation.TargetInfoPREVIEW

  `size, targetType`

- ## Method Details

  - ### supertypeIndex

    int supertypeIndex()
    JVMS: A supertype_index value of 65535 specifies that the annotation appears on the superclass in an extends clause of a class declaration. Any other supertype_index value is an index into the interfaces array of the enclosing ClassFile structure, and specifies that the annotation appears on that superinterface in either the implements clause of a class declaration or the extends clause of an interface declaration.
    Returns:
      the index into the interfaces array or 65535 to indicate it is the superclass