Interface Interfaces

All Superinterfaces:: ClassElement, ClassFileElement

public sealed interface Interfaces extends ClassElement

Models the interfaces (JVMS Â§4.1) of a class. An Interfaces appears at most once in a ClassModel: if it does not appear, the class has no interfaces, which is equivalent to an Interfaces whose interfaces() returns an empty list. A ClassBuilder sets the interfaces to an empty list if the interfaces is not supplied.

See Java Virtual Machine Specification:

4.1 The ClassFile Structure

Since:

See Also:

Method Summary

Modifier and Type	Method	Description
`List<ClassEntry>`	`interfaces()`	Returns the interfaces of this class, may be empty.
`static Interfaces`	`of(ClassEntry... interfaces)`	Returns an Interfaces element.
`static Interfaces`	`of(List<ClassEntry> interfaces)`	Returns an Interfaces element.
`static Interfaces`	`ofSymbols(ClassDesc... interfaces)`	Returns an Interfaces element.
`static Interfaces`	`ofSymbols(List<ClassDesc> interfaces)`	Returns an Interfaces element.

Method Details

interfaces

List<ClassEntry> interfaces()

Returns the interfaces of this class, may be empty.

Returns:: the interfaces of this class, may be empty

of

static Interfaces of(List<ClassEntry> interfaces)

Returns an Interfaces element.

Parameters:: interfaces - the interfaces
Returns:: an Interfaces element
Throws:: IllegalArgumentException - if the number of interfaces exceeds the limit of u2

of

static Interfaces of(ClassEntry... interfaces)

Returns an Interfaces element.

Parameters:: interfaces - the interfaces
Returns:: an Interfaces element
Throws:: IllegalArgumentException - if the number of interfaces exceeds the limit of u2

ofSymbols

static Interfaces ofSymbols(List<ClassDesc> interfaces)

Returns an Interfaces element.

Parameters:: interfaces - the interfaces
Returns:: an Interfaces element
Throws:: IllegalArgumentException - if any of interfaces is primitive, or if the number of interfaces exceeds the limit of u2

ofSymbols

static Interfaces ofSymbols(ClassDesc... interfaces)

Returns an Interfaces element.

Parameters:: interfaces - the interfaces
Returns:: an Interfaces element
Throws:: IllegalArgumentException - if any of interfaces is primitive, or if the number of interfaces exceeds the limit of u2

© 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.