fix: setState(name, null) should send JSON null to client #23388
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Fixes #22646 JacksonUtils.writeValue() now explicitly handles null values by returning a proper NullNode, matching the behavior of similar methods like JacksonSerializer.toJson() and JacksonCodec.encodeWithoutTypeInfo(). This ensures ReactAdapterComponent.setState(name, null) sends an actual JSON null to the client instead of the string "null".
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caalador
approved these changes
Feb 2, 2026
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Fixes #22646
JacksonUtils.writeValue() now explicitly handles null values by returning a proper NullNode, matching the behavior of similar methods like JacksonSerializer.toJson() and JacksonCodec.encodeWithoutTypeInfo(). This ensures ReactAdapterComponent.setState(name, null) sends an actual JSON null to the client instead of the string "null".