About this episode

This episode discusses the introduction of LazyConstant in JDK 26 and its implications for lazy initialization and constant folding in Java.

Lazily initializing fields in Java is error-prone and undermines constant-folding. JDK 26 comes with JEP 526, which previews LazyConstant , a type that lazily initializes a value through a given Supplier . It executes that supplier at most once successfully and then assigns the value to a field annotated with @Stable , which allows constant folding. This API is also a poster child for how OpenJDK develops and evolves features.

People in this episode

Host: David Delabassee

Topics covered

• Java
• Lazy Initialization
• JDK 26
• Constant Folding
• OpenJDK
• Software Development

Keywords

• LazyConstants
• JDK 26
• Java
• constant folding
• OpenJDK
• JEP 526
• Supplier

Mentioned in this episode

Organizations: OpenJDK

Products: JDK 26, LazyConstant

Books & works: JEP 526

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