JDK 9: Pitfalls for the unwary ：
https://jaxenter.com/jdk-9-pitfalls-136968.html

What’s New in Oracle JDK 9 ：
https://docs.oracle.com/javase/9/whatsnew/toc.htm#JSNEW-GUID-C23AFD78-C777-460B-8ACE-58BE5EA681F6

JDK 9 新特性中文翻译版

JDK 9 中一些需要提防的坑

一起谈谈 Java 9 的新特性

Java 9 中的 9 个新特性

附上 JDK 9 特性一览：

102: Process API 更新

110: HTTP 2 Client

143: 提升访问对象时的线程竞争处理

158: 统一 JVM 日志

165: Compiler Control

193: Variable Handles

197: 分割代码缓存区

199: Smart Java Compilation, 第二阶段

200: 模块化JDK

201: 模块化源码

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: 模块化运行时镜像

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: 模块化系统

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

288: Disable SHA-1 Certificates

289: Deprecate the Applet API

290: Filter Incoming Serialization Data

291: Deprecate the Concurrent Mark Sweep (CMS) Garbage Collector

292: Implement Selected ECMAScript 6 Features in Nashorn

294: Linux/s390x Port

295: Ahead-of-Time Compilation

297: Unified arm32/arm64 Port

298: Remove Demos and Samples

299: Reorganize Documentation

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