Notification Box Is Empty
Platform Notice: Data Center Only - This article only applies to Atlassian products on the Data Center platform.
Note that this KB was created for the Data Center version of the product. Data Center KBs for non-Data-Center-specific features may also work for Server versions of the product, however they have not been tested. Support for Server* products ended on February 15th 2024. If you are running a Server product, you can visit the Atlassian Server end of support announcement to review your migration options.
*Except Fisheye and Crucible
Summary
Symptoms
When opening the notification or task box in the upper right corner, it is empty.
The following appears in the atlassian-confluence.log:
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caused by: java.sql.SQLException: Incorrect string value: '\xE3\x81\xAB\xE3\x81\x82...' for column 'DATA' at row 1
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1078)
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2013-05-30 12:27:40,139 ERROR [http-8090-1] [xxxx] toResponse Exception thrown from resource
-- referer: http://xx.xxx.de:8090/plugins/servlet/notifications-miniview#notification | url: /rest/mywork/latest/notification/nested | userName: admin
com.google.common.util.concurrent.UncheckedExecutionException: java.util.NoSuchElementException
at com.google.common.cache.CustomConcurrentHashMap$ComputedUncheckedException.get(CustomConcurrentHashMap.java:3305)
at com.google.common.cache.CustomConcurrentHashMap$ComputingValueReference.compute(CustomConcurrentHashMap.java:3441)
at com.google.common.cache.CustomConcurrentHashMap$Segment.compute(CustomConcurrentHashMap.java:2322)
Diagnosis
Run the following query against the Confluence database. The collation for all tables should be unicode utf-8, if they are not set to unicode utf-8 then proceed to the resolution section of this article.
ℹ️ For Oracle databases, the equivalent for utf-8 is AL32UTF8
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show table status;Cause
Incorrect configuration of database encoding.
Solution
Resolution
Follow the instructions at the following page to convert the database to utf-8 character encoding:
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