version 2.10.0.pr1 https://github.com/FasterXML/jackson-databind/blob/6a88bc882b464234bab5d5c67709ddab61f5015c/src/main/java/com/fasterxml/jackson/databind/node/TreeTraversingParser.java#L315 should check for canConvertToLong(). Instead checks for canConvertToInt() and throws "JsonMappingException"