Java Transformer Maintenance questions regarding the BQ4JJTAR and BQ4JJTAX jobs

Products

• Spool

Issue/Introduction

I am applying several PTF's that have hold actions for engine reload. 

LU00363 - Restore the new CA Spool Java Transformers engine build 20.4.09 .
1. Tailor and submit CAI.CE0CJCL(BQ4JJTAR) to restore the
CE0CDATA(D2ETAR) TAR backup file delivered by this PTF
IMPORTANT: All of the USS directories and files that comprise the CA
Spool Java Transformers are replaced by this process. If you have
customized any files without changing the names of those files from
the original names, save them to a separate directory before running
the BQ4JJTAR job. Then copy the customized files back to the target
directory after BQ4JJTAR is executed. Customization will be lost if
steps are not taken to preserve files that have been changed since the
initial install. In most cases, customized files would be parameter
files stored in the /tpv/CAI/caspoold2e/xenos/apps directory.

LU01097 - Restore the new CA Spool Java Transformers engine build 20.4.17 into the desired USS directory and enable its use by the CA Spool Java Transformers FSS task.  
1.Tailor and submit CAI.CE0CJCL(BQ4JJTAX) to restore CE0CDATA(D2ENGTAR)
TAR backup file delivered by this PTF. The BQ4JJTAX needs to be executed
only for the most recent engine build.

LU02204 - Restore the new CA Spool Java Transformers engine  build 20.4.19 into the desired USS directory and enable its use by the CA Spool Java Transformers FSS task. 
1.Tailor and submit CAI.CE0CJCL(BQ4JJTAX) to restore CE0CDATA(D2ENGTAR)
TAR backup file delivered by this PTF. The BQ4JJTAX needs to be executed
only for the most recent engine build.

SO16248 - Restore the new CA Spool Java Transformers engine build 16.5.40 into the desired USS directory and enable  its use by the CA Spool Java Transformers FSS task.
1.Tailor and submit CAI.CE0CJCL(BQ4JJTAX) to restore CE0CDATA(D2ENGTAR) TAR backup file delivered by this PTF. The BQ4JJTAX needs to be executed only for the most recent engine build.

All of these hold actions call for running BQ4JJTAX except for LU00363, which calls for BQ4JJTAR.  LU00363 also cautions about content loss. 
What do I need to know about applying all of these together? 
What hold actions would I do?

 

Environment

Release : 14.0

Component : Spool

Resolution

Do the following hold actions only once after having applied all PTFs:

1) Run the BQ4JJTAR job
2) Run the BQ4JJTAX job
3) Update CAIQENVA member in CAI.CE0CPARM to use the latest Java Transformers engine build.                         

For example:
HOME=/tpv/caspoold2e/xenos/engine/20.4.19