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Error CWTBG0019E: Unexpected Exception occurs when starting the process using the REST interface with IBM Business Process Manager

Troubleshooting


Problem

You create a Business Process Definition (BPD) and expose the BPD process to start from REST API. When you send in a REST request for starting the BPD process, a CWTBG0019E error occurs.

Symptom

The following error shows in the stack traces:
com.ibm.bpm.wle.api.UnexpectedFailureException: CWTBG0019E: Unexpected  
exception during execution. java.lang.ClassCastException:                
com.lombardisoftware.client.persistence.Project incompatible with        
com.lombardisoftware.client.persistence.common.mixin.VersionedPO at      
com.lombardisoftware.client.persistence.cache.VersionedPOCache.putPO(VersionedPOCache.java:104) at                                              
com.lombardisoftware.client.persistence.common.factorydelegate.Versioned
FactoryDelegate.addToCache(VersionedFactoryDelegate.java:320) at        
com.lombardisoftware.client.persistence.common.factorydelegate.VersionedFactoryDelegate.findByPrimaryKey(VersionedFactoryDelegate.java:91) at    
com.lombardisoftware.client.persistence.common.AbstractVersionedPOFactory.findByPrimaryKey(AbstractVersionedPOFactory.java:151) at              
com.lombardisoftware.bpd.model.impl.BPDBusinessProcessDiagramFactory.findByPrimaryKey(BPDBusinessProcessDiagramFactory.java:91) at              
com.lombardisoftware.bpd.model.impl.BPDBusinessProcessDiagramFactory.findByPrimaryKey(BPDBusinessProcessDiagramFactory.java:86) at              
com.ibm.bpm.rest.internal.impl.WLE75InternalAPIImpl.findBPDById(WLE75InternalAPIImpl.java:184) at                                                com.ibm.bpm.rest.impl.process.StartActionHandler.handleAction(StartActionHandler.java:58) at                                                    com.ibm.bpm.rest.impl.process.BusinessProcessDefinitionResource.postProcessActions(BusinessProcessDefinitionResource.java:388) at                
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at          
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:60)      

[{"Product":{"code":"SSFTN5","label":"IBM Business Process Manager Advanced"},"Business Unit":{"code":"BU048","label":"IBM Software"},"Component":"REST API","Platform":[{"code":"PF002","label":"AIX"},{"code":"PF016","label":"Linux"},{"code":"PF027","label":"Solaris"},{"code":"PF033","label":"Windows"}],"Version":"7.5","Edition":"","Line of Business":{"code":"LOB76","label":"Data Platform"}},{"Product":{"code":"SSFTDH","label":"IBM Business Process Manager Standard"},"Business Unit":{"code":"BU048","label":"IBM Software"},"Component":"REST API","Platform":[{"code":"PF002","label":"AIX"},{"code":"PF016","label":"Linux"},{"code":"PF027","label":"Solaris"},{"code":"PF033","label":"Windows"}],"Version":"7.5","Edition":"","Line of Business":{"code":"LOB76","label":"Data Platform"}},{"Product":{"code":"SSFTBX","label":"IBM Business Process Manager Express"},"Business Unit":{"code":"BU048","label":"IBM Software"},"Component":"REST API","Platform":[{"code":"PF016","label":"Linux"},{"code":"PF033","label":"Windows"}],"Version":"7.5","Edition":"","Line of Business":{"code":"LOB76","label":"Data Platform"}}]

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Document Information

Modified date:
28 April 2025

UID

swg21503211

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