Unable to implement Repository method with java repository and Kotlin data class as Entity

Task List

• Steps to reproduce provided
• Stacktrace (if present) provided
• Example that reproduces the problem uploaded to Github
• Full description of the issue provided (see below)

Steps to Reproduce

1. Create Micronaut Data application in Java
2. Create Kotlin data class as Entity
3. Create JdbcRepository for Entity in Java
4. Build project

Expected Behaviour

Project should build without error.

Actual Behaviour

Gradle build fails at step kaptKotlin with message:

> Task :kaptKotlin
e: error: Unable to implement Repository method: BookRepository.update(Object arg0). Invalid query method [update] of repository [de.braeluca.javakotlin.BookRepository]: No id found for name entity: null
> Task :kaptKotlin FAILED

Environment Information

• Operating System: Windows 10
• Micronaut Version: 1.3.0.RC1
• JDK Version: 1.8

Example Application

• https://github.com/braeluca/micronaut-data-java-kotlin

However, if you replace @Id with @EmbeddedId and make corresponding changes to Entity and Repository, it will work just fine.

[graemerocher]

The annotation has to be applied to the field:

@field:Id
var id: String? = null

[braeluca]

Thanks it works now