First Look: Java 15

Introduction

• Should I upgrade to Java 15?
• What you should know
• Install Java 15 and configure IntelliJ IDEA

• Use hidden classes for JVM framework creators
• Use ZGC, a scalable, low-latency garbage collector
• Use Shenandoah, a low-pause-time garbage collector

• Manage long text values with text blocks
• Use scripts without the Nashorn JavaScript engine
• Challenge: Define and use a text block
• Solution: Define and use a text block

• Learning more