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Exception on HAL serialization with object mapper configured to sort map entries by keys #1517

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odrotbohm opened this issue Apr 16, 2021 · 0 comments
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Exception on HAL serialization with object mapper configured to sort map entries by keys #1517

odrotbohm opened this issue Apr 16, 2021 · 0 comments
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in: mediatypes Media type related functionality type: bug
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1.3.1

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Backport of #1515.
@odrotbohm odrotbohm self-assigned this Apr 16, 2021
@odrotbohm odrotbohm added in: mediatypes Media type related functionality type: bug labels Apr 16, 2021
@odrotbohm odrotbohm added this to the 1.3.1 milestone Apr 16, 2021
odrotbohm added a commit that referenced this issue Apr 16, 2021
@odrotbohm
#1517 - Fix HAL link serialization issues when Jackson map entry sort…
20cb026 
…ing is enabled.

Prior to this commit, the map of links to be rendered would key by LinkRelation. Unfortunately, Jackson requires `Map` keys to implement `Comparable` in case `SerializationFeature.ORDER_MAP_ENTRIES_BY_KEYS` is enabled. We now use the link relation's value as key right aways as Strings are comparable out of the box.

Switched to use Spring's MultiValueMap to avoid having to deal with the value list initialization ourselves.
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