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

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

Symptom

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 ********************************************************************************
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(ClassLoader.java:739)
at java.lang.ClassLoader.defineClass(ClassLoader.java:720)
at com.sap.engine.offline.FileClassLoader.findClass(FileClassLoader.java:927)
at com.sap.engine.offline.FileClassLoader.loadClass(FileClassLoader.java:807)
at com.sap.engine.offline.FileClassLoader.loadClass(FileClassLoader.java:755)
at com.sap.engine.offline.OfflineToolStart.main(OfflineToolStart.java:139)
FATAL: com.sap.engine.offline.OfflineToolStart will abort now with exitcode 2


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Environment

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

Keywords

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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