public static void setKerberosDebug(final String kerberosDebug) {
            if (StringUtils.isNotBlank(kerberosDebug)) {
                LOGGER.debug("kerberosDebug is set to : [{}]", kerberosDebug);
                System.setProperty(JcifsConfigConstants.SYS_PROP_KERBEROS_DEBUG, kerberosDebug);
            }
        }
Sets the kerberos debug.

@param kerberosDebug the new kerberos debug
support/cas-server-support-spnego/src/main/java/org/apereo/cas/support/spnego/authentication/handler/support/JcifsConfig.java