If Confluence is run against an Oracle DB and not deployed under weblogic as the app server, then the following exception is thrown:

• javax.servlet.jsp.jspException : bucket.container.ComponentNotFoundException: Failed to filed component: Error creating bean with name 'oracleLobHandler' defined in resource [/WEB-INF/applicationContext.xml] of ServletContext: Can't resolve reference to bean 'automaticJdbcExtractor' while setting property 'nativeJdbcExtractor'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.jdbc.support.nativejdbc.WebLogicNativeJdbcExtractor' defined in resource [/WEB-INF/applicationContext.xml] of ServletContext: Instantiation of bean failed; nested exception is java.lang.ClassNotFoundException: weblogic.jdbc.extensions.WLConnection