Caused By: java.lang.NoClassDefFoundError: org/apache/log4j/Logger

Question

I\'ve got an interesting problem in which the org.apache.log4j.Logger class is not found during runtime. I\'m trying to get authorized and that is where it\'s failing:

Answer 1

Had the same problem, it was indeed caused by weblogic stupidly using its own opensaml implementation. To solve it, you have to tell it to load classes from WEB-INF/lib for this package in weblogic.xml:

    
        org.opensaml.*
    

maybe true would work too.