Project Amber

The goal of Project Amber is to explore and incubate smaller, productivity-oriented Java language features that have been accepted as candidate JEPs under the OpenJDK JEP process. This Project is sponsored by the Compiler Group.

Status of JEPs

Currently in progress:

JEP 302 Lambda Leftovers
JEP 305 Pattern Matching
JEP 325 Switch Expressions (preview, JDK 12)
JEP 326 Raw String Literals (preview, JDK 12)
JEP draft 8209434 Concise Method Bodies

Delivered:

JEP 286 Local-Variable Type Inference (var) (JDK 10)
See also:
- Style Guidelines
- Frequently Asked Questions
JEP 323 Local-Variable Syntax for Lambda Parameters (JDK 11)

On hold:

JEP 301 Enhanced Enums. See explanation.

Documents

Data Classes for Java (February 2018)
Style Guidelines for Local Variable Type Inference (March 2018)
Local Variable Type Inference: Frequently Asked Questions (October 2018)

Community

Members
Mailing lists
- amber-dev — For technical discussion related to Project Amber
- amber-spec-experts — For JSR Expert Group members only
- amber-spec-observers — A read only clone of experts
- amber-spec-comments — For submitting comments on the official JSR specs