“Java 15 is Here!” with Mikael Vidstedt

Inside Java

David Delabassee (@delabassee) discusses the latest Java release, Java 15, with Mikael Vidstedt (@MikaelVidstedt), Director of JVM Development.

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Covered in This Episode New or updated Java language feature, Java SE API feature and JDK API

• Sealed Classes (Preview)
• Hidden Classes
• Reimplement the Legacy DatagramSocket API
• Text Blocks
• Foreign-Memory Access API (Second Incubator)
• Records (Second Preview)
• Pattern Matching for instanceof (Second Preview)

Garbage Collectors

• ZGC: A Scalable Low-Latency Garbage Collector
• Shenandoah: A Low-Pause-Time Garbage Collector
• Improving G1 out-of-the-box performance

Deprecation & Removal

• Remove the Solaris and SPARC Ports
• Remove the Nashorn JavaScript Engine

Security

• Edwards-Curve Digital Signature Algorithm (EdDSA)
• Support for certificate_authorities Extension

Other Features (JDK 14 & JDK 15)

• Cgroups v2: Container awareness
• JFR Event Streaming

OpenJDK Projects Discussed in this Episode

• Project Loom
• Project Panama
• Project Amber
• Project Valhalla

Additional Resources

• OpenJDK
• Oracle Java