@jsosa Usually, majority of all the JSON related methods and operations are included by default to be invoked in your rules and can be made use of. You can import the below statements in your code and look at the javadoc to use the right methods:
- connector.common.JsonUtil.JsonParser
- connector.common.JsonUtil
Below is the link to javadoc if you’d like to check out the detailed list of methods:
SailPoint usually recommends to use SailPoint provided OOTB classess & methods to accomplish your requirements for security and performance reasons.
However, the process to import and use the JARs would more or less remain the same as mentioned in this thread : How to import external jar libraries to use in connector rules?