Issue Summary

This is reproducible on Data Center: (yes)

Currently, some Automation artifacts have been published in

1. https://maven.artifacts.atlassian.com/com/atlassian/jira/plugin/automation/automation-api/
2. https://maven.artifacts.atlassian.com/com/atlassian/jira/plugin/automation/tenant-api/
3. https://maven.artifacts.atlassian.com/com/atlassian/jira/plugin/automation/jira-client-native/

Which are internal only, and need to be made private. These provide some APIs which are not available as yet.

This tickets is a request to create a public Java API which meets the following needs

1. Retrieve automation rules (not as JSON string). It should expose all related classes to navigate rule configuration
2. Create automation rule. It should offer an ability to create rules in nested transaction (related ticket : https://jira.atlassian.com/browse/JIRAAUTOSERVER-561)
3. Java API to parse smart values and Advanced fields

One these have been provided, the above artifacts can be made private.

Note

Relying on internal classes that are not marked as @PublicApi can cause troubles later on with compatibility. We do not recommend building app based on those classes.