On 7/6/06, William L. Thomson Jr. <wlt@obsidian-studios.com> wrote:
I am looking into if there were any changes with log4j between 1.2.12
and 1.2.13. The official Tomcat binary is compiled with 1.2.12, and we
are compiling against 1.2.13.

log4j used a trick to retain binary compatility whilst altering a class hierarchy sometime around then. JCL must be compiled against the right version of log4j or errors such as the above occur.

- robert