Platform notice: Server and Data Center only. This article only applies to Atlassian products on the server and data center platforms .

Summary

Trying to load a dashboard page presents an error 500 page.

Expanding the details of the error page or scanning the logs, an IndexOutOfBoundsException error is present.

throws one of the following exceptions:

java.lang.IndexOutOfBoundsException: Index: 2, Size: 2
at java.util.ArrayList.rangeCheck(ArrayList.java:657) [?:1.8.0_202]
at java.util.ArrayList.get(ArrayList.java:433) [?:1.8.0_202]
at com.atlassian.jira.portal.DefaultPortalPageManager.getPortletConfigurations(DefaultPortalPageManager.java:288) [classes/:?]
at com.atlassian.jira.dashboard.JiraDashboardStateStoreManager.getDashboardState(JiraDashboardStateStoreManager.java:166) [classes/:?]
at com.atlassian.jira.dashboard.JiraDashboardStateStoreManager.retrieve(JiraDashboardStateStoreManager.java:143) [classes/:?]
            
java.lang.IndexOutOfBoundsException: Index: 1, Size: 1
	at java.util.ArrayList.RangeCheck(ArrayList.java:546)
	at java.util.ArrayList.get(ArrayList.java:321)
	at com.atlassian.jira.portal.AbstractPortalPageImpl$ConfigInfo.putInColumn(AbstractPortalPageImpl.java:365)
	at com.atlassian.jira.portal.AbstractPortalPageImpl$ConfigInfo.setPortletConfigurations(AbstractPortalPageImpl.java:291)
	at com.atlassian.jira.portal.AbstractPortalPageImpl.setPortletConfigurations(AbstractPortalPageImpl.java:162)
	at com.atlassian.jira.dashboard.JiraDashboardStateStoreManager$2.get(JiraDashboardStateStoreManager.java:89)

Environment
All versions of Jira Core 7.x and 8.x.

Diagnosis
Apart from the error 500, either of the following errors can show up in the atlassian-jira.log located under <jira home>/log/ folder:
Evidence from the logs
            
[c.a.j.web.servlet.InternalServerErrorServlet] {errorId=da24ad8b-809a-4457-9015-6b13070603a1, interpretedMsg=, cause=java.lang.IndexOutOfBoundsException: Index: 1, Size: 1, stacktrace=java.lang.IndexOutOfBoundsException: Index: 1, Size: 1
Evidence from the database
You may also find the affected Dashboards and others by executing queries similar to these examples below:
    
Always back up your data before performing any modifications to the database. If possible, test any alter, insert, update, or delete SQL commands on a staging server first.
Update the database directly to set the Dashboard layout to 3 columns: