A fast JSON parser/generator for Java.
Feign makes writing java http clients easier
Java JsonPath implementation
Generate Java types from JSON or JSON Schema and annotates those types for data-binding with Jackson, Gson, etc
A reference implementation of a JSON package in Java.
Logback JSON encoder and appenders
A JSON Schema validation implementation in pure Java, which aims for correctness and performance, in that order
JSON to JSON transformation library written in Java.
jsoniter (json-iterator) is fast and flexible JSON parser available in Java and Go