There is OriginTrackedYamlLoader which loads yaml files into a map. When it creates instance of Yaml from snakeyaml library it passes LoaderOptions as parameter. The LoaderOptions contains value called maxAliasesForCollections.
The value restricts amount of used aliases for non-scalar nodes. Would be nice to make this value configurable.
I've faced the restriction in configuration for feature which has:
* 3 types of components
* each type has 4 ways of acting
* the feature has 12 instances of components
Every combination of type and acting way has part common for all 12 instances. Extracting common parts to use anchors implements single source of truth. Splitting such configuration to different files used as workaround in this case but undesirable for common usage. So please make this parameter configurable.
Comment From: wilkinsona
Thanks for the suggestion. This has already been addressed by https://github.com/spring-projects/spring-boot/issues/23096.