JDK-8269339 : Release Note: JEP 409: Sealed Classes
- Type: Sub-task
- Component: specification
- Sub-Component: language
- Affected Version: 17
- Priority: P2
- Status: Closed
- Resolution: Delivered
- Submitted: 2021-06-24
- Updated: 2022-03-30
- Resolved: 2021-08-06
The Version table provides details related to the release that this issue/RFE will be addressed.
Unresolved : Release in which this issue/RFE will be addressed.
Resolved: Release in which this issue/RFE has been resolved.
Fixed : Release in which this issue/RFE has been fixed. The release containing this fix may be available for download as an Early Access Release or a General Availability Release.
To download the current JDK release, click here.
Unresolved : Release in which this issue/RFE will be addressed.
Resolved: Release in which this issue/RFE has been resolved.
Fixed : Release in which this issue/RFE has been fixed. The release containing this fix may be available for download as an Early Access Release or a General Availability Release.
To download the current JDK release, click here.
| JDK 17 |
|---|
17Resolved  |
Description
Sealed Classes have been added to the Java Language. Sealed classes and interfaces restrict which other classes or interfaces may extend or implement them. Sealed Classes were proposed by [JEP 360](https://openjdk.java.net/jeps/360) and delivered in JDK 15 as a preview feature. They were proposed again, with refinements, by [JEP 397](https://openjdk.java.net/jeps/397) and delivered in JDK 16 as a preview feature. Now in JDK 17, Sealed Classes are being finalized with no changes from JDK 16. For further details, see [JEP 409](https://openjdk.java.net/jeps/409).