| Interface | Description | 
|---|---|
| JsonGenerator | Generates JSON from objects. | 
| JsonGenerator.Converter | Handles converting a given type. | 
| JsonParser | This is the parser interface that backs the new JsonSlurper. | 
| Class | Description | 
|---|---|
| DefaultJsonGenerator | A JsonGenerator that can be configured with various  JsonGenerator.Options. | 
| DefaultJsonGenerator.ClosureConverter | A converter that handles converting a given type using a closure. | 
| JsonBuilder | A builder for creating JSON payloads. | 
| JsonDelegate | Utility class used as delegate of closures representing JSON objects. | 
| JsonGenerator.Options | A builder used to construct a  JsonGeneratorinstance that allows
 control over the serialized JSON output. | 
| JsonLexer | The lexer reads JSON tokens in a streaming fashion from the underlying reader. | 
| JsonOutput | Class responsible for the actual String serialization of the possible values of a JSON structure. | 
| JsonOutput.JsonUnescaped | Represents unescaped JSON | 
| JsonSlurper | This has the same interface as the original JsonSlurper written for version 1.8.0, but its
 implementation has completely changed. | 
| JsonSlurperClassic | This is the original slurper included in case someone relies on its exact behavior. | 
| JsonToken | A JSON token, with a type, line / column information, and the text of that token. | 
| StreamingJsonBuilder | A builder for creating JSON payloads. | 
| StreamingJsonBuilder.StreamingJsonDelegate | The delegate used when invoking closures | 
| StringEscapeUtils | Escapes and unescapes  Strings for
 Java, Java Script, HTML, XML, and SQL. | 
| Enum | Description | 
|---|---|
| JsonParserType | Allows selection of parser type for new new JsonSlurper. | 
| JsonTokenType | The original slurper and lexer use this class. | 
| Exception | Description | 
|---|---|
| JsonException | JsonExceptionis the exception thrown by the JSON builder and slurper classes,
 whenever a problem occurs when creating or parsing JSON data structures. |