java json

1.

gson

https://sites.google.com/site/gson/gson-user-guide 

2.

<dependency>
<groupId>org.glassfish</groupId>
<artifactId>javax.json</artifactId>
<version>1.0.4</version>
</dependency>

<dependency>
<groupId>javax.json</groupId>
<artifactId>javax.json-api</artifactId>
<scope>provided</scope>
<version>1.0</version>
</dependency>

http://www.oracle.com/technetwork/articles/java/json-1973242.html

3.

 JSON-LIB