I have created a Support Request, and they haven't been able to help me, suggesting that I opened a dev support request:

While trying to follow the custom field type tutorial: https://developer.atlassian.com/jiradev/jira-platform/guides/fields/tutorial-creating-a-custom-field-type

I have found that there are some discrepancies between the process detailde in the tutorial and the actual process, one of them being the reference to a com.atlassian.jira.plugin.customfield.example package, whereas the sdk creates com.atlassian.jira.plugin.customfield.example.api and com.atlassian.jira.plugin.customfield.example.impl packages.

Anyway, I'm sticking to the steps described in the tutorial, but when I cannot see my custom field type anywhere on my local JIRA instance.
The command line window keeps throwing these errors:
[INFO] [talledLocalContainer] com.atlassian.util.concurrent.LazyReference$InitializationException: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'com.atlassian.jira.plugin.customfield.example.JiraCustomField': Unsatisfied dependency expressed through constructor argument with index 0 of type [com.atlassian.jira.issue.customfields.persistence.CustomFieldValuePersister]: : No qualifying bean of type [com.atlassian.jira.issue.customfields.persistence.CustomFieldValuePersister] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {}; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [com.atlassian.jira.issue.customfields.persistence.CustomFieldValuePersister] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {}

which I can't seem to be able to fix adding

<component-import key="customFieldValuePersister" interface="com.atlassian.jira.issue.customfields.persistence.CustomFieldValuePersister"/>
to my atlassian-plugin.xml, as descriibed here: https://developer.atlassian.com/docs/faq/troubleshooting/unsatisfieddependencyexception-error-creating-bean-with-name

Is this a bug or just lack of updated documentation with the last SDK version? Any help or insight on what could be going wrong would be appreciated.

Regards.