Java 11 in Action

Please refer https://winterbe.com/posts/2018/08/29/migrate-maven-projects-to-java-11-jigsaw/ first.

Official features

• Nest-based access control
• Dynamic class-file constraints
• Improve Aarch64 Intrinsics
• Epsilon: A No-Op Garbage Collector
• Remove enterprise APIs: JAXB, JAX-WS, JAX-WS Annotations, CORBA, JTA, JAF
• JavaFX: no longer bundled with Java 11, and with OpenJFX and added as dependency
• HTTP Client (Standard)
• Local variable syntax for lambda parameters: https://blog.jetbrains.com/idea/2018/06/java-11-in-intellij-idea-2018-2/
• Key agreement with Curve25519 and Curve448
• Unicode 10 support
• Flight recorder
• ChaCha20 and Poly1305 cryptographic algorithms
• Launch single-file source-code programs
• Low-overhead heap profiling
• TLS 1.3 support
• ZGC: A scalable low-latency garbage collector (Experimental)
• Removed: Applets, Java Web Start
• Deprecate the Nashorn JavaScript Engine, replaced with Graal.js
• Deprecate the Pack200 Tools and API

Demo

• Project Amber:

  • JEP 302 Lambda Leftovers
  • JEP 305 Pattern Matching
  • JEP 323 Local-Variable Syntax for Lambda Parameters
  • JEP 325 Switch Expressions
  • JEP 326 Raw String Literals

• Type inference

• Http Client: BodyHandlers with various useful handlers http://openjdk.java.net/groups/net/httpclient/intro.html https://download.java.net/java/early_access/jdk11/docs/api/java.net.http/java/net/http/HttpResponse.BodyHandlers.html

• Enhanced Enum

• data class

• Launch Single-File Source-Code Programs

java --source 11 src/main/java/org/mvnsearch/App.java

References

• <<Java 11 Quick Start>>
• JDK 11: http://openjdk.java.net/projects/jdk/11/
• JDK 11 Download: http://jdk.java.net/11/
• Project Amber: http://openjdk.java.net/projects/amber/