With this enhancement, you can update JRE without updating AHF.

1. Check the Autonomous Health Framework, Oracle Trace File Analyzer, Oracle Orachk, and Java versions.
   For example:

   # ahfctl version -all
   AHF version: 24.7.0
   TFA version: 24.7.0
   ORACHK  VERSION: 24.7.0_20240714
   JAVA VERSION: 11.0.22

2. Apply Java update.

   ahfctl applyupdate -updatefile <patch_zip>

   Where updatefile specifies the Java update file generated.

   For example:

   # ahfctl applyupdate -updatefile ahf_36840033_java_JDK11_MAIN_LINUX.X64_240318.11.0.23.B7.zip 
   This is a Java patch. Requires Java version comparison before proceeding.
   Java patch validation passed.
   Stopping TFA before applying JAVA Patch.
   
   Updated file /opt/oracle.ahf/jre
   Java patch applied successfully.
   Starting TFA post JAVA patch completion.
   
   .---------------------------------------------------------------------------------------------------------.
   | Host            | Status of TFA | PID   | Port  | Version    | Build ID              | Inventory Status |
   +-----------------+---------------+-------+-------+------------+-----------------------+------------------+
   | test-node       | RUNNING       | 15719 | 29063 | 24.7.0.0.0 | 240600020240715093016 | COMPLETE         |
   '-----------------+---------------+-------+-------+------------+-----------------------+------------------'

3. Post update, check the Java version.
   For example:

   $ /opt/oracle.ahf/jre/bin/java --version
   java 11.0.23 2024-04-16 LTS
   Java(TM) SE Runtime Environment 18.9 (build 11.0.23+7-LTS-222)

4. Post update, check the AHF, TFA, Oracle Orachk, and Java versions.
   For example:

   # ahfctl version -all
   AHF version: 24.7.0
   TFA version: 24.7.0
   ORACHK  VERSION: 24.7.0_20240714
   JAVA VERSION: 11.0.23

• To rollback to previous Java version, run the ahfctl rollbackupdate -updateid <update_id> command.
  For example:

  $ /opt/oracle.ahf/jre/bin/java --version
  java 11.0.23 2024-04-16 LTS

  # ahfctl rollbackupdate -updateid JDK11_MAIN_LINUX.X64_240318.11.0.23.B7
  Java rollback started.
  Rollback files includes JRE directory. TFA needs to stop first.
  ===== ===== ===== ===== ===== ===== ===== ===== ===== ===== =====
  Stopping TFA before rolling back to original.
  Rolled-back file /opt/oracle.ahf
  Starting TFA post rollback completion.
  Java rollback completed.

  $ /opt/oracle.ahf/jre/bin/java -version
  java version "11.0.21" 2023-10-17 LTS

• To query when Java was patched, run the ahfctl queryupdate -all command.
  For example:

  # ahfctl queryupdate -all
  Java Update
  Label: JDK11_MAIN_LINUX.X64_240318.11.0.23.B7
  Status: Applied
  Applied on: Wed Jul 24 19:36:24 2024

• To query when the Java update was rolled back, run the ahfctl queryupdate -all command.
  For example:

  # ahfctl queryupdate -all
  No AHF framework updates applied
  TFA version: 24.7.0
  ORACHK  VERSION: 24.7.0_20240714
  AHF version: 24.7.0
  JAVA VERSION: 11.0.22