Add jsonschema2pojo and jsonschematypes

Add jsonschema2pojo and jsonschematypes as Java code generators (jsonschematypes was already under Typescript generators but is called "jsongenerator" there)

Author: RadixSeven

implementations.md

@@ -155,6 +155,8 @@ are the only keywords that changed.
     -  [json-schema-to-elm](https://github.com/dragonwasrobot/json-schema-to-elm) - generates Elm types, JSON decoders+encoders, and fuzz tests from one or more JSON Schema files, using [dragonwasrobot/json_schema](https://github.com/dragonwasrobot/json_schema) *supports Draft 7*
 -   Java
     - [jsonCodeGen](https://github.com/schlothauer-wauer/jsoncodegen) (MIT) - Groovy based generation tasks from JSON schema. Already includes templates/generators for Java Beans, Swagger specification files and PlantUML diagrams.
+    - [jsonschema2pojo](https://github.com/joelittlejohn/jsonschema2pojo) (Apache 2.0) - generates Java types from JSON Schema (or example JSON) and can annotate those types for data-binding with Jackson 2.x or Gson. *draft-07*
+    - [jsonschematypes](https://github.com/jimblackler/jsonschematypes) (Apache 2.0) - Java library to generate Java or TypeScript classes from standard JSON Schemas. *JSON Schema 2019-09, draft-07, -06, -04, -03*
     - [jsongenerator](https://github.com/jimblackler/jsonschematypes/tree/master/codegen) *JSON Schema 2019-09, draft-07, -06, -04, -03* (Apache-2.0)
 -   Online (web tool)
     -   [quicktype.io](https://app.quicktype.io/#l=schema) - infer JSON Schema from samples, and generate TypeScript, C++, go, Java, C#, Swift, etc. types from JSON Schema
@@ -313,4 +315,4 @@ Hyper-Schema
     </ul>
   </li>
   {% endfor %}
-</ul>
+</ul>