OpenJDK 9 正式公布，日程及特性由 JEP Process 提议，由 JEP 2.0 proposal 修订。
日程表
2016/05/26 Feature Complete
2016/08/11 All Tests Run
2016/09/01 Rampdown Start
2016/10/20 Zero Bug Bounce
2016/12/01 Rampdown Phase 2
2017/01/26 Final Release Candidate
2017/03/23 General Availability
milestone definitions 与 JDK8 保持一致
Status
We are past the Feature Complete milestone, but that does not mean that the feature set is frozen. If you own a JEP or a small enhancement that is not yet complete then you can request an extension via the FC extension-request process.
Features
JEPs proposed to target JDK 9
JEPs targeted to JDK 9, so far
102: Process API Updates
110: HTTP 2 Client
158: Unified JVM Logging
165: Compiler Control
193: Variable Handles
197: Segmented Code Cache
200: The Modular JDK
201: Modular Source Code
213: Milling Project Coin
224: HTML5 Javadoc
225: Javadoc Search
226: UTF-8 Property Files
227: Unicode 7.0
237: Linux/AArch64 Port
241: Remove the jhat Tool
253: Prepare JavaFX UI Controls & CSS APIs for Modularization
254: Compact Strings
256: BeanInfo Annotations
259: Stack-Walking API
261: Module System
262: TIFF Image I/O
267: Unicode 8.0
268: XML Catalogs
271: Unified GC Logging
277: Enhanced Deprecation
285: Spin-Wait Hints
引用来自“天堂向左-战士向右”的评论
JDK8还没用上的举个爪～引用来自“doge_刀戈”的评论
早就用8了 。。引用来自“东方星痕”的评论
快出module的教程啊引用来自“紫电清霜”的评论
jdk7还没用上的举个爪引用来自“zp-wmhx”的评论
8对6的代码有兼容性问题, 不要轻易升级.引用来自“天堂向左-战士向右”的评论
JDK8还没用上的举个爪～引用来自“天堂向左-战士向右”的评论
JDK8还没用上的举个爪～