Relates #KT-57647
If a serialization descriptor is used in the companion, then when accessing the child elements, an array of cached child serializers may be read.
Since the serialization plugin adds its declarations to the class after the declarations from the source code, the initialization of the array of child serializers occurs after the execution of the user code.
This can lead to N PE errors when trying to access an unfilled cached child serializer.
The solution is to change the order of declarations so that the declaration with the property of cached child serializers comes first.
Merge-request: KT-MR-10545
Merged-by: Sergey Shanshin <Sergey.Shanshin@jetbrains.com>
Fixes #KT-58918
If the serializable class contains itself as a generic parameter of the property, and its serializer is not an object (for example, for a sealed class), in this case there is a race in the initialization of the serializer and child serializers.
Merge-request: KT-MR-10363
Merged-by: Sergey Shanshin <Sergey.Shanshin@jetbrains.com>
FixesKotlin/kotlinx.serialization#2294
If the serializable class contains itself as a property, and its serializer is not an object (for example, for a sealed class), in this case there is a race in the initialization of the serializer and child serializers.
To avoid this the serialization class should not cache its own serializer as a child.
Merge-request: KT-MR-10019
Merged-by: Sergey Shanshin <Sergey.Shanshin@jetbrains.com>