Importing issue history from other issue tracker DB into Jira

I am importing issues from a non-legacy issue tracker systems DB into Jira.

I am able to import all the issues from the DB, properly with the help of customized 'ji开发者_开发百科ra-importer-plugin.jar'.Now I want to import the issue history of the non-legacy issue tracker into Jira.

Are there any workarounds for pushing the issue change history from other issue trackers into Jira.

Can anyone please tell me in detail how do I import history into Jira from the DB?

You would need to customize the JIRA importer that you were using to also use the JIRA ChangeLogUtils and related classes to add the data to the change* tables in the JIRA database.