WCC: CA-wcc-services fail during startup; CAUAJM_E_00179 Unable to load the CA Secure Sockets Adapter shared library dynamically. Process terminating.

Issue/Introduction:

INTERNAL KD:
Customer had recently installed WCC 11.4 SP6 in a Sandbox environment.
WCC services fail to startup. Once started it appeared services were running, then a few minutes later they stop.

Messages in the CA-wcc-services.log:
================
INFO | jvm 5 | 2018/07/17 16:35:19 | 102 | java.lang.IllegalStateException: Environment variable CSAM_SOCKADAPTER not set.
INFO | jvm 5 | 2018/07/17 16:35:20 | 102 | CAUAJM_E_00179 Unable to load the CA Secure Sockets Adapter shared library dynamically. Process terminating.

CSAM.log shows:

Messages in csam.log ($CSAM_SOCKADAPTER/log): This was the problem.

Fri Jul 27 15:27:42.491 INFO CSAM.BROK [4147410688] [20892] [0] main: - /opt/CA/SharedComponents/Csam/SockAdapter/bin/csampmuxf: shutting down
Fri Jul 27 15:27:42.491 INFO CSAM.BROK [4147410688] [20892] [0] main: - shutting down - removing /opt/CA/SharedComponents/Csam/SockAdapter/.csam_broker
Fri Jul 27 18:44:37.076 INFO CSAM.BROK [4148266752] [31010] [2] logNameOfListener: - created listener on [0.0.0.0]:7163
Fri Jul 27 18:44:37.077 ERROR CSAM.BROK [4148266752] [31010] [2] startListener: - unable to create listener socket for [::]:7163 - 97
Fri Jul 27 18:44:37.077 WARN CSAM.BROK [4148266752] [31010] [1] createListeners: - cannot create listener on port [7163] for address family IPv6: 97
Fri Jul 27 18:44:37.077 INFO CSAM.BROK [4148266752] [31010] [0] main: - created client listener

Cause:

From the fix readme:

PMUX Listener should run on IPV6 interface on IPV6 configured machine as below;

Command -> netstat -na | grep "7163"

Output
tcp6 0 0 :::7163 :::*
LISTEN

Environment:

WCC 11.4 SP6; Linux
Oracle Database 12c Enterprise Edition Release 12.1.0.2.0 - 64bit Production

Resolution:

CSAM would not stay up, therefore WCC-services would not stay running as WCC requires CSAM.
Applying the fix resolved the issue.

Fix below:
For SSA (CSAM) 2.4 T55L057 (PMUX listens only on IPV4 interface in IPV6 configured machine which resulted rejection of
IPV6 connections.)
-------------------

In addition confirm these are set correctly: (KB000029740):
> Make sure that CSAM_SOCKADAPTER is set in /etc/profile.CA
> In $CA_WCC_INSTALL_LOCATION/tomcat_32/conf/wrapper.conf, set.LD_LIBRARY_PATH to include %CSAM_SOCKADAPTER%/lib

>> The above matched the customers WCC messages, the resolution alone did not solve the problem because it was a CSAM issue.