3295166 - Service com.sap.glx.core.svc can't start due to error "Referenced class com.sap.glx.adapter.BPMNAdapter:Request does not exist."

During upgrade of AS Java where Business Process Management (BPM) related software components get installed, SUM fail with error:
---------------
Deployment of archive <path>\BPEMCONTENT<xxx>.SCA --> sap.com~tc~bpem~content~predefs~default.sda for component sap.com/tc~bpem~content~predefs~default aborted
Detailed message: 1. com.sap.glx.repository.exceptions.RuntimeRepositoryException: RTRep>  no handler for file: gen_bpm/exceptions/Cancel_<xxx>.err Please check if all services are up and running.
Create an OSS message in component: BC-BMT-BPM-CMP for support.
---------------

Followed KBA 
2445994 - Deployment phase via SUM fails with RuntimeRepositoryException for BPEM-CONTENT
and confirmed com.sap.glx.core.svc service can't start. However are able to start them manually from NWA. After manual startup, repeating SUM still fails with same error. From usr/sap/<SID>/<xx>/work/std_server0.out can see error:
---------------
  Service [com.sap.glx.core.svc] start ================= ERROR ================= 
  CSN Component [BC-BMT-BPM-SRV], DC Name [sap.com/com.sap.glx.core.svc]
java.lang.RuntimeException: Failed to initialize the GLX Core Service. Reason: com.sap.glx.core.api.GlxCoreException: Startup failed
...
Caused by: com.sap.glx.core.api.GlxCoreException: Startup failed
...
Caused by: com.sap.glx.core.api.GlxCoreException: Runtime mode didn't leave the OFFLINE state. For a likely cause, refer to the nested exception
...
Caused by: com.sap.glx.deploy.api.DeployException: com.sap.glx.deploy.api.DeployException: java.lang.NullPointerException: Referenced class com.sap.glx.adapter.BPMNAdapter:Request does not exist.
...
Caused by: com.sap.glx.deploy.api.DeployException: java.lang.NullPointerException: Referenced class com.sap.glx.adapter.BPMNAdapter:Request does not exist.
...
Caused by: java.lang.NullPointerException: Referenced class com.sap.glx.adapter.BPMNAdapter:Request does not exist.
    at com.sap.glx.core.kernel.trigger.config.CSVNetBuilder.build(CSVNetBuilder.java:269)
    at com.sap.glx.core.kernel.trigger.impl.TriggerNetworkManagerImpl.load(TriggerNetworkManagerImpl.java:1140)
    at com.sap.glx.core.kernel.trigger.impl.TriggerNetworkManagerImpl.load(TriggerNetworkManagerImpl.java:1180)
    ... 21 more
--------------------

• SAP NetWeaver Java
• Business Process Management - BPM

KBA , BC-BMT-BPM-CMP , Process Composer , Problem