JD Tech

Jul 1, 2024 · Backend Development

Resolving NullPointerException in BeanCopier Caused by Lombok @Accessors(chain=true)

This article analyzes a NullPointerException triggered by Lombok's @Accessors(chain=true) when using BeanCopier, explains how the altered setter return type prevents JDK Introspector from recognizing write methods, and provides two practical solutions to fix the issue.