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2489071 - SUM: AS JAVA fails to start after restore from backup taken at the end of PreProcessing Roadmap


For some reason/error in SUM in the execution roadmap, it was decided to roll back.
The system was restored from the backup of the Database and FileSystem /usr/sap/<SID> taken at the end of PreProcessing Roadmap.

However the start of the system fails with the below error as shown below.

Logfile /usr/sap/<SID>/<instance>/work/dev_jstart has the below error:

F [Thr 01] *** LOG => Instance state is "Deploying offline components" (STOPPING @ 0, INACTIVE).
F [Thr 01] *** LOG => Run level 1 completed.
F [Thr 01] *** LOG => Instance state is "Some processes failed" (STOPPED @ 0, INACTIVE).
I [Thr 01] MPI: dynamic quotas disabled.
I [Thr 01] MPI init: pipes=4000 buffers=6395 reserved=1918 quota=10%
I [Thr 01] *** ERROR => FcaInit: already initialized [fcaxxcomm.c 956]
I [Thr 01] *** ERROR => ShmCleanup(62) failed 3 [mpixx.c 4607]
F ********************************************************************************
F *** ERROR => Node 'deployment' failed with exit code 2."

Logfile /usr/sap/<SID>/<instance>/work/jvm_deployment.out has the below error:

FATAL: java.lang.UnsupportedClassVersionError: com/sap/engine/services/dc/cm/offline_phase/Runner has been compiled by a more recent version of the Java Runtime (class file version 52.0),
this version of the Java Runtime only recognizes class file versions up to 50.0

at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClassCond(
at java.lang.ClassLoader.defineClass(
FATAL: will abort now with exitcode 2



Update/Upgrade of JAVA stack with SUM in a scenario where the Target SAPJVM major version is updated.


jvm_deployment.out, copy-engine-bootstrap, dev_jstart, 2, deployment, java.lang.UnsupportedClassVersionError, restore , KBA , BC-UPG-TLS-TLJ , Upgrade tools for Java , BC-JAS-COR , Enterprise Runtime, Core J2EE Framework , Problem

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