Fixed overriding findCreatorAnnotation instead of hasCreatorAnnotation

release-notes/CREDITS-2.x

@@ -16,6 +16,7 @@ Authors:
 Contributors:
 
 # 2.17.0 (not yet released)
+* #727: Fixed overriding findCreatorAnnotation instead of hasCreatorAnnotation
 
 # 2.16.0
 

release-notes/VERSION-2.x

@@ -18,7 +18,7 @@ Co-maintainers:
 
 2.17.0 (not yet released)
 
--
+#727: Fixed overriding findCreatorAnnotation instead of hasCreatorAnnotation.
 
 2.16.0 (15-Nov-2023)
 

src/main/kotlin/com/fasterxml/jackson/module/kotlin/KotlinAnnotationIntrospector.kt

@@ -1,11 +1,9 @@
 package com.fasterxml.jackson.module.kotlin
 
-import com.fasterxml.jackson.annotation.JsonCreator
 import com.fasterxml.jackson.annotation.JsonProperty
 import com.fasterxml.jackson.databind.DeserializationFeature
 import com.fasterxml.jackson.databind.JsonSerializer
 import com.fasterxml.jackson.databind.Module
-import com.fasterxml.jackson.databind.cfg.MapperConfig
 import com.fasterxml.jackson.databind.introspect.*
 import com.fasterxml.jackson.databind.jsontype.NamedType
 import com.fasterxml.jackson.databind.util.Converter
@@ -59,15 +57,6 @@ internal class KotlinAnnotationIntrospector(
         return hasRequired
     }
 
-    override fun findCreatorAnnotation(config: MapperConfig<*>, a: Annotated): JsonCreator.Mode? {
-
-        // TODO: possible work around for JsonValue class that requires the class constructor to have the JsonCreator(Mode.DELEGATED) set?
-        // since we infer the creator at times for these methods, the wrong mode could be implied.
-
-        // findCreatorBinding used to be a clearer way to set this, but we need to set the mode here to disambugiate the intent of the constructor
-        return super.findCreatorAnnotation(config, a)
-    }
-
     override fun findSerializationConverter(a: Annotated): Converter<*, *>? = when (a) {
         // Find a converter to handle the case where the getter returns an unboxed value from the value class.
         is AnnotatedMethod -> a.findValueClassReturnType()?.let {

src/main/kotlin/com/fasterxml/jackson/module/kotlin/KotlinNamesAnnotationIntrospector.kt

@@ -2,6 +2,7 @@ package com.fasterxml.jackson.module.kotlin
 
 import com.fasterxml.jackson.annotation.JsonCreator
 import com.fasterxml.jackson.annotation.JsonProperty
+import com.fasterxml.jackson.databind.cfg.MapperConfig
 import com.fasterxml.jackson.databind.introspect.Annotated
 import com.fasterxml.jackson.databind.introspect.AnnotatedConstructor
 import com.fasterxml.jackson.databind.introspect.AnnotatedMember
@@ -111,11 +112,15 @@ internal class KotlinNamesAnnotationIntrospector(
         }
     }
 
-    override fun hasCreatorAnnotation(member: Annotated): Boolean =
-        if (member is AnnotatedConstructor && member.isKotlinConstructorWithParameters())
-            cache.checkConstructorIsCreatorAnnotated(member) { hasCreatorAnnotation(it) }
-        else
-            false
+    // TODO: possible work around for JsonValue class that requires the class constructor to have the JsonCreator(DELEGATED) set?
+    //   since we infer the creator at times for these methods, the wrong mode could be implied.
+    override fun findCreatorAnnotation(config: MapperConfig<*>, ann: Annotated): JsonCreator.Mode? {
+        if (ann !is AnnotatedConstructor || !ann.isKotlinConstructorWithParameters()) return null
+
+        return JsonCreator.Mode.DEFAULT.takeIf {
+            cache.checkConstructorIsCreatorAnnotated(ann) { hasCreatorAnnotation(it) }
+        }
+    }
 
     @Suppress("UNCHECKED_CAST")
     private fun findKotlinParameterName(param: AnnotatedParameter): String? {