weblogic11g 部署应用，激活更改时，报错：

消息图标 - 错误

激活更改期间出错, 有关详细信息, 请查看日志。

[HTTP:101371]There was a failure when processing annotations for application D:\software\hedu.war. Ensure that the annotations are valid. The error is Class bytes found but defineClass()failed for: 'com.reremouse.servlet.DownloadFileQuestionAttach'

com/reremouse/servlet/DownloadFileQuestionAttach : unsupported classversion 51.0

原因是生成war包是jdk1.7环境，weblogic自建域是jdk1.6

解决办法，使用jdk1.6生成war包。

ITPub博客

weblogic报错unsupported classversion 51.0

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