feat: Prepare ORS update to Spring Boot 4 - #120
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jackson-datatype-jts 2.14 has no source in this repo and no Jackson 3 release. Port the small upstream module instead of depending on one materializing; vendor it as com.graphhopper.jackson.geojson. Self-contained, no callers yet. Adds Jackson 3 alongside Jackson 2 in web-api. Includes round-trip tests for all 7 geometry types. Assisted-by: Claude Code
Replace duplicated ObjectMapper+JtsModule GeoJSON parsing in GraphHopper, LMPreparationHandler, and GHUtility with a shared GeoJsonMapper. Preserve LMPreparationHandler's graceful-degrade on malformed files (now catching JacksonException). core now depends on Jackson 3 directly. Assisted-by: Claude Code
Assisted-by: Claude Code
…dule Port the remaining 12 (de)serializers plus GraphHopperModule, Jackson.java, and Gpx.java -- these move together since GraphHopperModule wires all 12 in one constructor. Key API changes: ObjectMapper -> JsonMapper.builder(), PropertyNamingStrategies.SNAKE_CASE, ObjectCodec removed (ctxt.readTreeAsValue), asText/isTextual -> asString/isString, fields() -> properties().iterator(). ResponsePathDeserializer's static helper signatures change accordingly (internal callers only). Assisted-by: Claude Code
Assisted-by: Claude Code
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Required changes to work with ORS when it switches to Spring Boot 4.
Most is about replacing Jackson 2 with Jackson 3.