The cla2_KeyStore.jks can be found in CmdLine2server.properties, which looks something as follows.
The password here is encrypted and can be decrypted using the CLA2_PasswordUtil.cmd/sh script present in the bin directory. This script can be used to encrypt as well as decrypt a password string.
The generic usage of this script is as follows.
CLA2_PasswordUtil.cmd/sh -decrypt <string>