JPA projection getting 'is no accessor method' in 3.2.0-RC2 and Kotlin 1.9.20

[estigma88]

Environment:

Spring Data JPA 3.2.0-RC2
Kotlin 1.9.20
JDK 21

Problem:

For a Koltin interface projection over a native Query, we are getting the following error when we try to access a property:

Invoked method public abstract java.lang.String com.example.issuejpakotlin.AggregateStats.getPipelineId() is no accessor method

The following is the Kotlin interface:

interface AggregateStats {
    fun getPipelineId(): String?
    fun getStdDevKbs(): Double?
}

And the JPA repository:

interface StatsJpaRepository : JpaRepository<StatsEntity, String> {

    @Query(
        value = """select pipeline_id as pipelineId,
                        stddev(bytes_in_rate) as stdDevKbs
                    from stats
                    where
                        pipeline_id in (?1)
                    group by pipeline_id""", nativeQuery = true
    )
    fun findAllStatsByIdIn(
        pipelineIds: List<String>
    ): List<AggregateStats>
}

How to reproduce:

We attached a Spring Boot project, you can run the test there.

Debugging:

Seems like the org.springframework.data.util.KotlinBeanInfoFactory class cannot find any accessor method in the interface.

This code works fine in Spring Boot 3.0.2 and Kotlin 1.9.20 where KotlinBeanInfoFactory class was not used.

Any help will be appreciated.

[mp911de]

This looks like a duplicate of spring-projects/spring-data-commons#2964. Can you upgrade to the latest Spring Data snapshots (3.2.0-SNAPSHOT for spring-data-commons) and retest?

[spring-projects-issues]

If you would like us to look at this issue, please provide the requested information. If the information is not provided within the next 7 days this issue will be closed.

[estigma88]

We will wait for the GA version to test this issue and come back to you

[mp911de]

Closing the issue until then.