RE: Any way to tell when a JVM on a midrange box was last updated?

I guess part of this is what constitutes a JVM upgrade? Does a JVM upgrade only occur when you load on the LPP version, and maybe change the environment variable, as indicated by
https://www.ibm.com/support/pages/how-determine-what-java-development-kits-jdks-are-installed-and-use-them-your-environment#:~:text=To%20determine%20what%20JDK%20versions%20and%20bit%20levels%20are%20currently,the%20%22Product%20Option%22%20column.
Or do PTF's also change the JVM? Perhaps some minor revision level?

See also the timestamp on these files:
/QOpenSys/QIBM/ProdData/JavaVM/jdk80/64bit/release
/QOpenSys/QIBM/ProdData/JavaVM/jdk80/32bit/release
/QOpenSys/QIBM/ProdData/JavaVM/jdk11/64bit/release

What I am trying to figure out is will an attempt to figure out when a lpp option was install suffice? Do I need to also see if when system wide environment variables were also updated? Or do I need to see when PTF's were put on?

QSH CMD('java -version')
java version "1.8.0_301"
Java(TM) SE Runtime Environment (build 8.0.6.35 - pap6480sr6fp35-20210714_01(
SR6 FP35))
...
Display Environment Var (*SYS)
Name . . . . . . . . . : JAVA_HOME
Value . . . . . . . . . : '/QOpenSys/QIBM/ProdData/JavaVM/jdk80/64bit'

Here are some ptf samples:
SI69979 9304 06/06/19 JVA-RUN JDK80 32 BIT IBM Technology for SI73998
Java SR5FP35
SI69980 9304 06/06/19 JVA-RUN JDK80 64 BIT IBM Technology for SI74002
Java SR5FP35
SI69985 9304 06/06/19 JVA-RUN JDK 80-32 IBM Technology for Java SI74015
SR5 FP35
SI69989 9304 06/06/19 JVA-RUN JDK 80-64 IBM Technology for Java SI74019
SR5 FP35
SI70395 9304 07/05/19 JVA-RUN JDK 80-32 IBM Technology for Java SI74015
SR5 FP35 Update
SI70396 9304 07/05/19 JVA-RUN JDK 80-64 IBM Technology for Java SI74019
SR5 FP35 Update
https://www.ibm.com/support/pages/node/6198503
See also SF97740: FIX SUMMARY LISTING FOR VERSION 7 RELEASE 4.0
Replace the 4 as desired.

Look also for JAVA_HOME at https://www.ibm.com/docs/en/i/7.4?topic=services-jvm-info-view


Rob Berendt