W3cubDocs

/OpenJDK 25

Interface ClassSignature

public sealed interface ClassSignature
Models the generic signature of a class or interface, as defined by JVMS 4.7.9.1.
See Java Language Specification:
8.1 Class Declarations
9.1 Interface Declarations
See Java Virtual Machine Specification:
4.7.9.1 Signatures
Since:
24
See Also:

Method Summary

Modifier and Type Method Description
static ClassSignature of(Signature.ClassTypeSig superclassSignature, Signature.ClassTypeSig... superinterfaceSignatures)
Returns a class signature with no type parameter declaration.
static ClassSignature of(List<Signature.TypeParam> typeParameters, Signature.ClassTypeSig superclassSignature, Signature.ClassTypeSig... superinterfaceSignatures)
Returns a class signature.
static ClassSignature parseFrom(String classSignature)
Parses a raw class signature string into a Signature.
String signatureString()
Returns the raw signature string.
Signature.ClassTypeSig superclassSignature()
Returns the instantiation of the superclass in this signature.
List<Signature.ClassTypeSig> superinterfaceSignatures()
Returns the instantiation of the interfaces in this signature, may be empty.
List<Signature.TypeParam> typeParameters()
Returns the type parameters of this class or interface, may be empty.

Method Details

typeParameters

List<Signature.TypeParam> typeParameters()
Returns the type parameters of this class or interface, may be empty.
Returns:
the type parameters of this class or interface, may be empty
See Java Language Specification:
8.1.2 Generic Classes and Type Parameters
9.1.2 Generic Interfaces and Type Parameters
See Also:

superclassSignature

Signature.ClassTypeSig superclassSignature()
Returns the instantiation of the superclass in this signature. Interfaces return a signature representing the Object class.
Returns:
the instantiation of the superclass in this signature
See Java Language Specification:
8.1.4 Superclasses and Subclasses
See Also:

superinterfaceSignatures

List<Signature.ClassTypeSig> superinterfaceSignatures()
Returns the instantiation of the interfaces in this signature, may be empty.
Returns:
the instantiation of the interfaces in this signature, may be empty
See Java Language Specification:
8.1.5 Superinterfaces
9.1.3 Superinterfaces and Subinterfaces
See Also:

signatureString

String signatureString()
Returns the raw signature string.
Returns:
the raw signature string

of

static ClassSignature of(Signature.ClassTypeSig superclassSignature, Signature.ClassTypeSig... superinterfaceSignatures)
Returns a class signature with no type parameter declaration.
Parameters:
superclassSignature - the superclass
superinterfaceSignatures - the interfaces
Returns:
a class signature with no type parameter declaration

of

static ClassSignature of(List<Signature.TypeParam> typeParameters, Signature.ClassTypeSig superclassSignature, Signature.ClassTypeSig... superinterfaceSignatures)
Returns a class signature.
Parameters:
typeParameters - the type parameters, may be empty
superclassSignature - the superclass
superinterfaceSignatures - the interfaces
Returns:
a class signature

parseFrom

static ClassSignature parseFrom(String classSignature)
Parses a raw class signature string into a Signature.
Parameters:
classSignature - the raw class signature string
Returns:
class signature
Throws:
IllegalArgumentException - if the string is not a valid class signature string

© 1993, 2025, Oracle and/or its affiliates. All rights reserved.
Documentation extracted from Debian's OpenJDK Development Kit package.
Licensed under the GNU General Public License, version 2, with the Classpath Exception.
Various third party code in OpenJDK is licensed under different licenses (see Debian package).
Java and OpenJDK are trademarks or registered trademarks of Oracle and/or its affiliates.
https://docs.oracle.com/en/java/javase/25/docs/api/java.base/java/lang/classfile/ClassSignature.html