GrailsCompileStatic on domain class fails if inner enum

[Taack]

When using GrailsCompileStatic on domain classes that do contains enum definitions in, compilation fails with the following message:

General error during canonicalization: Cannot get property 'initialExpression' on null object

java.lang.NullPointerException: Cannot get property 'initialExpression' on null object
at org.grails.compiler.ValidateableTypeCheckingExtension$_run_closure4.doCall(ValidateableTypeCheckingExtension.groovy:50)

Step to reproduce

1. create an empty web project
2. add domain class that contains enum class in
3. add GrailsCompileStatic class annotation
4. in the root of the project, launch build:

$ ./gradlew build
=> Compilation fails

[Taack]

test.tar.gz

[snimavat]

@jameskleeh this is still an issue with grails 3.3.2

[jameskleeh]

@snimavat Likely whatever you are experiencing is a different issue. Please file a new issue with an example project.

[jamesdh]

@jameskleeh I pushed an example project built from Grails 4.0.3 that exposes this bug. Specifically User.groovy

It's the combination of @GrailsCompileStatic, an inner enum, and a static mapping block (even if that mapping block is empty) which exposes it. Remove any of those three, and compilation works fine.

[darxriggs]

@jameskleeh do you already have an idea when this might be fixed?

[sagrawal31]

This happened for me because I was using Groovy annotation @Sortable(includes = ["day", "start"]) on top of the domain class. As soon as I removed it, the error is gone. Weird!

Although, I use Java's DayOfWeek day enum in my domain class.

[jpozorio]

For me, it fails with one property mapped as jsonb

[darxriggs]

@puneetbehl can you provide an indication when this might be fixed? It is still assigned to milestone grails-3.12.2 which was already closed in 2018.