2296719 - Software Update Manager (SUM) does not switch the SAPJVM to the compatible target release during an upgrade

• During an upgrade, Software Update Manager (SUM) throws the below error in deployment: (Logfile : Path to SUM/SUM/sdt/log/SUM/DEPLOY-COMPONENTS_01.LOG)

<Date> <Time> [Info ]: Restarting AS Java...
<Date> <Time> [Info ]: Deployment of Java components finished.
<Date> <Time> [Error]: java.lang.RuntimeException:
com.sap.engine.services.dc.api.deploy.EngineTimeoutException: [ERROR CODE DPL.DCAPI.1041] Deploy API could not retrieve the Result after 7200000 ms.
Possible reasons:
1.J2EE Engine cannot start.
Please check in Sap MMC or jcmon the engine status.
If the server is stopped please check the server log files why the engine cannot start.
2.Engine is up and running but deploy controller could not be looked up due to some Runtime exception.
Please start telnet session to the SAP Application Server , check if the tc~bl~deploy_controller service is started.
<Date> <Time> [Error ]: Deployment error.See log <Path to SUM>/SUM/sdt/log/SUM/deploy_api.0.log for details.

• The start of the instance fails due to the use of old JVM. At this phase, the kernel has already been switched to the target kernel and the system is supposed to use the SAPJVM suited for the target release but it is seen that the JVM is not switched and still the source jvm is used.

/usr/sap/<SID>/<instance>/work/dev_jstart:
F vendor : SAP AG
F version : <source release jvm version> 
F [Thr 01] <Date> <Time>
F [Thr 01] *** LOG => Signal 20 SIGCHLD.
F [Thr 01] *** LOG => Process deployment stopped (pid 31588506).
F [Thr 01] *** WARNING => Node deployment failed: result 1, exit code 67. [sfxxnode.hpp 1022]

SAP NetWeaver JAVA and Dual Stack Upgrades with SUM

DETECT-TARGET-SAPJVM-VERSION, SET-TARGET-SAPJVM-VERSION, UPDATE-SAPJVM DEPLOY-SAPJVM-BINARIES, SWITCH, TargetSAPJVMVersion, com.sap.engine.services.dc.api.deploy.EngineTimeoutException, Node deployment failed: result 1, exit code 67. [sfxxnode.hpp 1022], Signal 20 SIGCHLD , KBA , BC-UPG-TLS-TLJ , Upgrade tools for Java , Problem