SerialInfo annotation: Default parameters in custom annotation cause compiler exception

[slava110]

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Describe the bug I'm using custom annotation @YamlComment annotated with @SerialInfo. If @YamlComment annotation contains default parameters compiler will throw an error

To Reproduce

@Target(AnnotationTarget.PROPERTY)
@SerialInfo
public annotation class YamlComment(
    val comment: String,
    val trimIndent: Boolean = false // Throws an error
)

Environment

• Kotlin version: 1.6.21
• Library version: Plugin: 1.6.21, SerializationCore: 1.3.3
• Kotlin platforms: JVM
• Gradle version: 7.4.2
• Other relevant context: JDK 8 is used for project code, JDK 11 is used for Gradle

[NightEule5]

This specific case seems to be fixed in 1.7, but it's broken when the first parameter is vararg :/

I've opened KT-53235 on YouTrack for this issue

[ProVir]

Hi!

As I understand it, default parameters are still not supported? I have such a case - it does not build with caches for JVM and strange problems in Kotlin/Native

https://youtrack.jetbrains.com/issue/KT-53475/KotlinNative-for-iOS-IllegalArgumentException-Sequence-has-more-than-one-element

[sandwwraith]

Seems to be fixed in the latest release (or in Kotlin 1.8.0).