Upgrade to Confluence 5.8.x failed due to Unsupported major.minor version 52.0 (unable to load class com.atlassian.confluence.setup.ConfluenceConfigurationListener)
プラットフォームについて: Server および Data Center のみ。この記事は、Server および Data Center プラットフォームのアトラシアン製品にのみ適用されます。
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.
*Fisheye および Crucible は除く
問題
Upgrading to Confluence 5.8.x from 5.7.x or earlier fails. The following appears in the atlassian-confluence.log
java.lang.UnsupportedClassVersionError:
com/atlassian/confluence/setup/ConfluenceConfigurationListener :
Unsupported major.minor version 52.0 (unable to load class
com.atlassian.confluence.setup.ConfluenceConfigurationListener)
診断
環境
- Existing Confluence installation (5.7.x or earlier).
- Upgrading to Confluence 5.8.x or later.
- Java version 1.7.x.
原因
The upgrade is blocked due to a JDK mismatch. Confluence 5.8.x requires Java 1.8.x, and will not function using Java 1.7.x.
See our guide to Supported Platforms for more info.
ソリューション
Our guide to Installing Java for Confluence will help you download and install Java 1.8.x for use with Confluence 5.8.x.
There's a known issue with Java 1.8.0_25 and 1.8.0_31, and another known issue with Java 1.8.0_45. We don't recommend running Confluence on these versions.