KSP: TypeExtractor crashes on parameterized supertypes (ObjectId with MongoDB)

[bangbang93]

Important Notice

• I am willing to put in the work and submit a PR to resolve this issue.

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Describe the bug

querydsl-ksp-codegen:7.1 crashes with IllegalStateException when processing MongoDB @document classes that have ObjectId fields.

To Reproduce

1. Create a Spring Data MongoDB @document class with an ObjectId field
2. Add querydsl-ksp-codegen to build.gradle.kts
3. Run ./gradlew kspKotlin

Expected behavior

KSP processor should generate QAgent.kt query class.

Actual behavior

Build fails with: IllegalStateException: KSType 'Comparable<(ObjectId..ObjectId?)>' has type arguments

Root cause

In TypeExtractor.kt:69, fallbackType() calls toClassName() on Comparable without checking if it is parameterized.

Proposed fix

Skip supertypes with type arguments before calling toClassName():

declaration.getAllSuperTypes().any { supertype ->
    supertype.arguments.isEmpty() && comparableNames.contains(supertype.toClassName().canonicalName)
}

Environment

• OS: Linux
• Kotlin: 2.3.20
• querydsl-ksp-codegen: 7.1
• kotlinpoet-ksp: 2.2.0