Facing issue in Jira server to DC migration

[Rajesh Ramankutty]

Dear Team am getting the following error

Sorry, we had some technical problems during your last operation.

Copy the content below and send it to your Jira Administrator

Log's referral number: e9533316-ed5d-43ce-a83f-4f31c66ec676

log

2024-04-14 22:30:05,909+0530 http-nio-80-exec-2 url: /secure/Dashboard.jspa ERROR anonymous 1350x40x1 1jdu2g4 0:0:0:0:0:0:0:1 /secure/Dashboard.jspa [c.a.j.web.filters.CommittedResponseHtmlErrorRecoveryFilter] Exception occurred after HTTP response was already committed: com.atlassian.jira.web.pagebuilder.PageBuildingException: javax.servlet.ServletException: java.lang.NoClassDefFoundError: sun/misc/BASE64Decoder
2024-04-14 22:30:06,694+0530 http-nio-80-exec-2 url: /secure/Dashboard.jspa ERROR anonymous 1350x40x1 1jdu2g4 0:0:0:0:0:0:0:1 /secure/Dashboard.jspa [c.a.j.web.servlet.InternalServerErrorServlet] {errorId=e9533316-ed5d-43ce-a83f-4f31c66ec676, interpretedMsg=, cause=com.atlassian.jira.web.pagebuilder.PageBuildingException: javax.servlet.ServletException: java.lang.NoClassDefFoundError: sun/misc/BASE64Decoder, stacktrace=com.atlassian.jira.web.pagebuilder.PageBuildingException: javax.servlet.ServletException: java.lang.NoClassDefFoundError: sun/misc/BASE64Decoder
at com.atlassian.jira.web.pagebuilder.PagePartFlusher.flushPagePart(PagePartFlusher.java:24) [classes/:?]
at com.atlassian.jira.web.pagebuilder.strategy.flushappheaderearly.FlushAppHeaderEarlyPageBuildingStrategy.flushEarly(FlushAppHeaderEarlyPageBuildingStrategy.java:80) [classes/:?]

[Ste Wright]

Hi @Rajesh Ramankutty 

Assuming you are the Jira Admin, have you considered contacting Atlassian's migration team to see if they can help?

You might be eligible for direct help - check here if you are, with access to contact them: https://www.atlassian.com/migration/help?tab=migration-support-engineers

Ste