1844962 - License installation fails in shadow instance during the phase INSTALL_LICENSE in UPGRADE/INSTALL_SHADOW_ENGINE Module

During AS JAVA release upgrade you may get below error during INSTALL_SHADOW_ENGINE Phase

----Trouble Ticket / INSTALL_LICENSE_ILI_0X.LOG----------

The execution of UPGRADE/INSTALL_SHADOW_ENGINE/INSTALL_LICENSE ended in
error.

Error while executing PhaseTypeExecuteTask with input file
ExecuteTasks.xml and task INSTALL_LICENSE.
Error while processing the result.
Cannot install temporary license on the shadow AS Java Server; for more
information
        see /usr/sap/<SID>/upg/java/log/LICENSE_INSTALL*.*. Could not
execute '/usr/sap/<SID>/upg/jvm/jre/bin/java -cp /usr/sap/<SID>/upg/java/dat
a/install/lib/sap.com~tc~bl~offline_launcher~impl.jar:.
com.sap.engine.offline.OfflineToolStart
com.sap.engine.tools.offlinelikeyinst.InstallFirstTempLicense
/usr/sap/<SID>/upg/java/data/install/lib:/usr/sap/CA1/upg/java/CA1/SYS/glo
bal/security/lib:/usr/sap/CA1/upg/java/data/jdbc/db2jcc.jar:/usr/sap/CA1
/upg/java/data/jdbc/db2jcc_license_cu.jar
/usr/sap/<SID>/upg/java/tmp/licenseinstaller.properties', return code
'13'. You can check the file(s)
'/usr/sap/<SID>/upg/java/log/LICENCE_INSTALL_ILI.OUT',
'/usr/sap/<SID>/upg/java/log/LICENCE_INSTALL_ILI.ERR' to which the output
of the process has been redirected.

More information can be found in the log file
/usr/sap/CA1/upg/java/log/INSTALL_LICENSE_ILI_0X.LOG.

 ---------LICENCE_INSTALL_ILI_0X.ERR-------

 java.net.ConnectException: Connection refused
..
..
Could not get the hardware key.
java.net.ConnectException: Connection refused
at
com.sap.engine.offline.OfflineToolStart.main(OfflineToolStart.java:162)
Could not get the System ID (SID).

• AS JAVA Release upgrade
• Product / Release independent

AS java , EHPI , SUM , SAPup ,Instance , central , sapcontrol , function , start , MMC , P4 , expired , KBA , BC-UPG-TLS-TLJ , Upgrade tools for Java , Problem