Allow YAML processors to create a flattened map with nulls included#36197
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jhoeller merged 1 commit intospring-projects:mainfrom Jan 23, 2026
Merged
Allow YAML processors to create a flattened map with nulls included#36197jhoeller merged 1 commit intospring-projects:mainfrom
jhoeller merged 1 commit intospring-projects:mainfrom
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Add an additional `getFlattenedMap` method to `YamlProcessor` to allow
the resulting flattened map to include nulls.
This update will allow processor subclasses to tell the difference
between YAML that is defined with an empty object vs missing the key
entirely:
e.g.:
application:
name: test
optional: {}
vs
application:
name: test
optional: {}
Closes spring-projectsgh-36197
Signed-off-by: Phillip Webb <phil.webb@broadcom.com>
philwebb
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Update `YamlProcessor` to allow any value to be inserted for empty entries. This update will allow blank strings to be used instead of `null` which better aligns with the way that `.properties` files are loaded. This update also allows allows the specified `emptyValue` to be inserted instead of a blank String when the YAML contains `null` or `~` values. See spring-projectsgh-36197 See spring-projectsgh-19986 Signed-off-by: Phillip Webb <phil.webb@broadcom.com>
philwebb
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Jan 24, 2026
Update `YamlProcessor` to allow any value to be inserted for empty entries. This update will allow blank strings to be used instead of `null` which better aligns with the way that `.properties` files are loaded. This update also allows allows the specified `emptyValue` to be inserted instead of a blank String when the YAML contains `null` or `~` values. See spring-projectsgh-36197 See spring-projectsgh-19986 Signed-off-by: Phillip Webb <phil.webb@broadcom.com>
jhoeller
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that referenced
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Jan 24, 2026
Update `YamlProcessor` to allow any value to be inserted for empty entries. This update will allow blank strings to be used instead of `null` which better aligns with the way that `.properties` files are loaded. This update also allows allows the specified `emptyValue` to be inserted instead of a blank String when the YAML contains `null` or `~` values. See gh-36197 See gh-19986 Signed-off-by: Phillip Webb <phil.webb@broadcom.com>
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Whilst looking into spring-projects/spring-boot#48920 I realized we don't currently have a good way to flatten a YAML map and retain
nullvalues. Whilst we could do this in Spring Boot, it would mean duplicating code so I wonder if we can add a new method here instead.