发布于 2016-06-27 02:25:40 | 127 次阅读 | 评论: 0 | 来源: 网友投递

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OpenJDK Java开发环境

OpenJDK做为GPL许可（GPL-licensed）的Java平台的实现，Sun正式发布它已经一年有余。从发布那一时刻起，Java社区的大众们就又开始努力学习，以适应这个新的开源代码基础（code-base）。

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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

• 288: Disable SHA-1 Certificates

JEPs targeted to JDK 9, so far

• 102: Process API Updates

• 110: HTTP 2 Client

• 143: Improve Contended Locking

• 158: Unified JVM Logging

• 165: Compiler Control

• 193: Variable Handles

• 197: Segmented Code Cache

• 199: Smart Java Compilation, Phase Two

• 200: The Modular JDK

• 201: Modular Source Code

• 211: Elide Deprecation Warnings on Import Statements

• 212: Resolve Lint and Doclint Warnings

• 213: Milling Project Coin

• 214: Remove GC Combinations Deprecated in JDK 8

• 215: Tiered Attribution for javac

• 216: Process Import Statements Correctly

• 217: Annotations Pipeline 2.0

• 219: Datagram Transport Layer Security (DTLS)

• 220: Modular Run-Time Images

• 221: Simplified Doclet API

• 222: jshell: The Java Shell (Read-Eval-Print Loop)

• 223: New Version-String Scheme

• 224: HTML5 Javadoc

• 225: Javadoc Search

• 226: UTF-8 Property Files

• 227: Unicode 7.0

• 228: Add More Diagnostic Commands

• 229: Create PKCS12 Keystores by Default

• 231: Remove Launch-Time JRE Version Selection

• 232: Improve Secure Application Performance

• 233: Generate Run-Time Compiler Tests Automatically

• 235: Test Class-File Attributes Generated by javac

• 236: Parser API for Nashorn

• 237: Linux/AArch64 Port

• 238: Multi-Release JAR Files

• 240: Remove the JVM TI hprof Agent

• 241: Remove the jhat Tool

• 243: Java-Level JVM Compiler Interface

• 244: TLS Application-Layer Protocol Negotiation Extension

• 245: Validate JVM Command-Line Flag Arguments

• 246: Leverage CPU Instructions for GHASH and RSA

• 247: Compile for Older Platform Versions

• 248: Make G1 the Default Garbage Collector

• 249: OCSP Stapling for TLS

• 250: Store Interned Strings in CDS Archives

• 251: Multi-Resolution Images

• 252: Use CLDR Locale Data by Default

• 253: Prepare JavaFX UI Controls & CSS APIs for Modularization

• 254: Compact Strings

• 255: Merge Selected Xerces 2.11.0 Updates into JAXP

• 256: BeanInfo Annotations

• 257: Update JavaFX/Media to Newer Version of GStreamer

• 258: HarfBuzz Font-Layout Engine

• 259: Stack-Walking API

• 260: Encapsulate Most Internal APIs

• 261: Module System

• 262: TIFF Image I/O

• 263: HiDPI Graphics on Windows and Linux

• 264: Platform Logging API and Service

• 265: Marlin Graphics Renderer

• 266: More Concurrency Updates

• 267: Unicode 8.0

• 268: XML Catalogs

• 269: Convenience Factory Methods for Collections

• 270: Reserved Stack Areas for Critical Sections

• 271: Unified GC Logging

• 272: Platform-Specific Desktop Features

• 273: DRBG-Based SecureRandom Implementations

• 274: Enhanced Method Handles

• 275: Modular Java Application Packaging

• 276: Dynamic Linking of Language-Defined Object Models

• 277: Enhanced Deprecation

• 278: Additional Tests for Humongous Objects in G1

• 279: Improve Test-Failure Troubleshooting

• 280: Indify String Concatenation

• 281: HotSpot C++ Unit-Test Framework

• 282: jlink: The Java Linker

• 283: Enable GTK 3 on Linux

• 284: New HotSpot Build System

• 285: Spin-Wait Hints

• 287: SHA-3 Hash Algorithms

• 289: Deprecate the Applet API

详情：http://openjdk.java.net/projects/jdk9/

历史版本 :
OpenJDK 9 正式公布，明年3月发布正式版