Table of Contents

• Getting Started
• Significant Changes in JDK 11 Release
  • Removal of the Deployment Stack
  • Removal of Java EE and CORBA Modules
  • Security Updates
  • Removed APIs, Tools, and Components
    • Removed APIs in JDK 11
    • Tools and Components Not Shipped with JDK 11
• Preparing For Migration
  • Download the Latest JDK
  • Run Your Program Before Recompiling
  • Update Third-Party Libraries
  • Compile Your Application if Needed
  • Run jdeps on Your Code
• Migrating From JDK 8 to Later JDK Releases
  • Understanding Runtime Access Warnings
    • --add-exports
    • --add-opens
  • New Version-String Scheme
  • Changes to the Installed JDK/JRE Image
    • Changed JDK and JRE Layout
    • New Class Loader Implementations
    • Removed rt.jar and tools.jar in JDK 9
    • Removed Extension Mechanism in JDK 9
    • Removed Endorsed Standards Override Mechanism
    • Windows Registry Key Changes
  • Removed or Changed APIs
    • Removed APIs in JDK 9 and JDK 10
      • Removed java.* APIs
      • Removal and Future Removal of sun.misc and sun.reflect APIs
      • java.awt.peer Not Accessible
      • Removed com.sun.image.codec.jpeg Package
    • Removed Tools Support for Compact Profiles
    • Use CLDR Locale Data by Default
  • Deployment
    • Removed Launch-Time JRE Version Selection
    • Removed Support for Serialized Applets
    • JNLP Specification Update
  • Security Updates in JDK 9
    • JCE Jurisdiction Policy File Default is Unlimited
    • Create PKCS12 Keystores
  • Changes to Garbage Collection
    • Make G1 the Default Garbage Collector
    • Removed GC Options
    • Changes to GC Log Output
  • Removed Tools and Components
    • Removed Native-Header Generation Tool (javah)
    • Removed JavaDB
    • Removed the JVM TI hprof Agent
    • Removed the jhat Tool
    • Removed java-rmi.exe and java-rmi.cgi Launchers
    • Removed Support for the IIOP Transport from the JMX RMIConnector
    • Dropped Windows 32–bit Client VM
    • Removed Java VisualVM
    • Removed native2ascii Tool
  • Removed macOS-Specific Features
    • Platform-Specific Desktop Features
    • Removed AppleScript Engine
  • Running Java Applets
  • Behavior Change in Regular Expression Matching
• Next Steps
• Documentation Accessibility