KSP codegen: @QueryEntity with a @QuerySupertype base class fails with "Unable to resolve type of entity" (QueryModelType.autodetect doesn't know QuerySupertype)

[kylequera]

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Describe the bug

QueryModelType.autodetect() in querydsl-ksp-codegen only recognizes jakarta.persistence.MappedSuperclass for SUPERCLASS models (and jakarta.persistence.Embeddable for EMBEDDABLE). When a @QueryEntity class has a superclass annotated with querydsl's own @QuerySupertype, autodetect returns null and the processor throws:

e: [ksp] java.lang.IllegalStateException: Unable to resolve type of entity for <superclass fqn>

No Q classes are generated. The failure is the same whether the @QuerySupertype base class is source in the same module or comes from a compiled library dependency.

To Reproduce

Generating Q classes for non-JPA (Spring Data R2DBC) entities using querydsl's own annotations:

import com.querydsl.core.annotations.QueryEntity
import com.querydsl.core.annotations.QuerySupertype
import java.time.LocalDateTime
import java.util.UUID

@QuerySupertype
abstract class AuditableEntity(
    open var id: UUID? = null,
    open var createdDate: LocalDateTime? = null,
)

@QueryEntity
class GroupEntity(
    id: UUID? = null,
    val name: String,
) : AuditableEntity(id)

dependencies {
    implementation("io.github.openfeign.querydsl:querydsl-core:7.4.0")
    ksp("io.github.openfeign.querydsl:querydsl-ksp-codegen:7.4.0")
}

Versions: querydsl-ksp-codegen:7.4.0 (affects the @QueryEntity support introduced in 7.1 via #1345), Kotlin 2.1.0, KSP 2.1.0-1.0.29 (KSP2), Gradle 8.10.2, JDK 21.

Expected behavior

KSP codegen should recognize @QuerySupertype and @QueryEmbeddable the same way the classic APT processor does, generate Q supertype classes for @QuerySupertype bases, and generate @QueryEntity subclasses with _super referencing the supertype Q class.

Root cause

QueryModelExtractor.addNew() walks the entity's superclass and calls the single-arg addClass(), which resolves the model type via QueryModelType.autodetect(). QueryModelType.SUPERCLASS.associatedAnnotations only contains jakarta.persistence.MappedSuperclass — querydsl's own com.querydsl.core.annotations.QuerySupertype was never added when @QueryEntity support landed (#1345), so autodetect returns null and addClass throws. EMBEDDABLE has the same gap for com.querydsl.core.annotations.QueryEmbeddable.

Proposed fix

In QueryModelType.kt, add the querydsl-native annotations to the associated annotation lists:

EMBEDDABLE(
    listOf(
        Embeddable::class.qualifiedName!!,
        "com.querydsl.core.annotations.QueryEmbeddable"
    )
),
SUPERCLASS(
    listOf(
        MappedSuperclass::class.qualifiedName!!,
        "com.querydsl.core.annotations.QuerySupertype"
    )
),

Additional context

I have validated this two-line change locally against 7.4.0 sources on a real two-build project (library @QuerySupertype base + consumer @QueryEntity entities): generation succeeds and the full integration-test suite passes.

A follow-up PR with the fix and regression tests is coming shortly.