java.lang.ClassNotFoundException: ch.qos.logback.classic.spi.ThrowableProxy?

Question

while starting my weblogic(having my app war file containing logback-classic-1.0.1.jar),i am getting below exception.Any suggestion ?

Answer 1

The class that is missing definitely exists in the JAR you have, I checked logback-classic-1.0.1.jar:

2012-03-07 07:34:18 .....         4729         2018  ch\qos\logback\classic\spi\ThrowableProxy.class

Make sure your classpath is set up correctly. By the way: if possible update logback because this version is 3 years old.