Hi, In comparing the outputs of Throwable#printStackTrace and logback, I found an inconsistency in how the Throwable instances are printed. While the former delegates to the Throwable instance's #toString method, the latter (partially) re-implements the default implementation in Throwable, which means that data contained in the #toString methods of Throwable subclasses is discarded. While this is easy to work around in my own code, there is still a problem when working with third-party libraries. Is there a configuration option that would allow me to specify my own IThrowableProxy implementation? (I couldn't find any pages describing the extension points and how to activate them.) Or would it be more appropriate to modify the ThrowableProxyUtil class so that it behaves similarly to #printStackTrace? Any ideas would be greatly appreciated. Thanks in advance! -Abraham