Provide an option for Confluence to display more than 1000 issues while using Jira Issue Macro

Issue Summary

Jira Issue macro will only return a max of 1000 rows regardless of emptying the maximum Issues field (where it says it will return all rows if empty).

This is reproducible on Data Center: yes

Steps to Reproduce

1. Edit a Confluence page and insert Jira issue macro.
2. Search for a Jira project which has more than 1000 issues in it and insert.
   • By default JIM allows only 1000 results through display options. 

Expected Results :

JIM to display more than 1000 issues which are returned by Jira. 

Actual Results :

Confluence does not allow to add a number which is more than 1000 

Workaround

This problem can be circumvented by raising API limits within Jira, and utilizing Jira gadgets rather than the native macro within Confluence. This allows Jira to render the gadgets directly, instead of providing the raw data for Confluence to interpret. Both steps must be taken, as the default issue limit for Jira's API is 1000 issues— and this value is separately hard-coded in the native Confluence issue macro.

To enable the workaround:

1. In Jira, navigate to Jira Administration > System > General Configuration > Advanced Settings.
2. Change the following keys to the issue limit that you've decided on. Make sure to click the Update button to the right of each key after you've edited it.
   • jira.search.views.default.max
   • jira.search.views.max.limit
   • jira.search.stable.max.results
3. In the <JIRA HOME>/jira-config.properties file, add the following line (or modify the value if the property is already present). If this file doesn't already exist, create it.
   • jira.table.gadget.max.rows = <MAX_ISSUE_LIMIT_HERE>
4. Restart Jira.
5. In Confluence, navigate to General Configuration > External Gadgets > Gadget Feeds.
6. Enter the base URL for Jira in the Gadget Feed URL field, and click Add.
7. Restart Confluence.

After the workaround is complete, a few new macros will show up in the editor. The Filter Results macro provides similar functionality to the native issue macro, and will now be able to display issues up to the limit we just configured.