NCAU Java 9 Beyond Modules

Companion code for the NCAU "Java 9 beyond modules".

• the java8comparison module contains code that demonstrates improvements made to existing APIs without changing them
  • Benchmarks.java is the launcher for all JMH microbenchmarks
  • Jsr310Benchmark.java contains microbenchmarks for Java Date and Time API classes
  • UuidBenchmark.java contains microbenchmarks for UUID
  • StringLayout.java demonstrates string layout changes in Java 9
  • Jsr310Test.java shows bugs in the fixed the Java Date and Time API in Java 9
• the newwith9 module contains code that demonstrates new APIs with Java 9
  • jce.jsh illustrates how to use JShell to check for unlimited strength Java Cryptography Extensions
  • ObjectsTest.java illustrates the methods added to the class Objects in Java 9
  • CollectionsTest.java illustrates the methods added to the classes Set, List and Map in Java 9
  • InputStreamTest.java illustrates the InputStream.transferTo() method added in Java 9

References

Further Reading

• Overview of What’s New in JDK 9
• Java Time (JSR-310) enhancements in Java SE 9
• Attach API cannot be used to attach to the current VM by default, JDK-8180425
• JEP 254: Compact Strings
• Relaxed strong encapsulation
• VisualVM
• Code Tools: jol
• Oracle Labs GraalVM
• JavaOne 2017: Changes to the JDK Release Model
• Installed Directory Structure of JDK and JRE
• JCMD
• JDK 9 Release Notes: Removed APIs, Features, and Options

GC

• Garbage-First Garbage Collector Tuning
• JEP 304: Garbage Collector Interface
• JEP 312: Thread-Local Handshakes
• JDK 9 is the End of the Road for Some Features
• Goodbye PrintGCDetails... and Other JDK 9 Changes!
• Shenandoah GC
• CFV: New Project: ZGC

JMH

• OpenJDK: JMH
• JMH REsources
• JMH Visualizer