Can you attach a log so we can see what's going on (boot.log + server.log)?
Logs will not help in this matter.
From the scurity standpoint I do not want to include such tools.jar into classpath on the application server level.
The perfect solution would be if esb archive will contain META-INF/MANIFEST.MF in which I can define "Class-Path: ..." and ESB deployer will take it into acoount during deployment. Unforunately it does not work (checked).