Lombok中的Val在IntelliJ中产生“不兼容类型”错误，但仍可正常编译

Question

I found this piece of code:

Class<? extends Enum> enumClass = Class.forName(Charsets.class.getName())
                                       .asSubclass(Enum.class);

and I wanted to refactor it using Lombok, but something unexpected happened. When I changed it to:

val enumClass = Class.forName(Charsets.class.getName())
                     .asSubclass(Enum.class);

I got this error:

What's suprising is that the code compiles fine, and test that uses it passes.

I am unsure whether it is a bug in the Lombok Plugin, IDE or if I am doing something wrong. Shouldn't Lombok be able to easily infer the correct type of the variable?

My question is: can I use that code safely or should I revert to the original?

I am using the most recent (at this time) InteliiJ:

IntelliJ IDEA 2016.3

Build #IU-163.7743.44, built on November 17, 2016

JRE: 1.8.0_112-release-408-b2 amd64

JVM: OpenJDK 64-Bit Server VM by JetBrains sro

and Lombok Plugin:

Lombok Plugin

Version: 0.13.16

Answer 1

确认可与IntelliJ IDEA 2018.1.1和Lombok插件0.17-2018.1一起使用

Answer 2

Preferences > Plugins >为IntelliJ安装最新版本的Lombok插件