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Unable to retrieve content from response
javax.xml.bind.UnmarshalException: unexpected element (uri:"
 http://www.w3.org/1999/xhtml", local:"html"). Expected elements are 
 <{}abortProcessInstanceCommand>,<{}abortWorkItemCommand>,<{}activate-task-command>,<{}add-task-command>,<{}boolean-type>,<{}byte-type>,<{}cancel-deadline-command>,<{}char-type>,<{}claim-next-available-task-command>,<{}claim-task-command>,<{}clearHistoryLogsCommand>,<{}command-request>,<{}command-response>,<{}complete-task-command>,<{}completeWorkItemCommand>,<{}content>,<{}content-response>,<{}delegate-task-command>,<{}deleteCommand>,<{}deployment-descriptor>,<{}deployment-job-result>,<{}deployment-unit>,<{}deployment-unit-list>,<{}disconnected-fact-handle>,<{}double-type>,<{}exception>,<{}exception-response>,<{}execute-task-rules-command>,<{}exit-task-command>,<{}fail-task-command>,<{}findActiveProcessInstancesCommand>,<{}findNodeInstancesCommand>,<{}findProcessInstanceCommand>,<{}findProcessInstancesCommand>,<{}findSubProcessInstancesCommand>,<{}findVariableInstancesByNameCommand>,<{}findVariableInstancesCommand>,<{}fireAllRulesCommand>,<{}float-type>,<{}forward-task-command>,<{}get-attachment-command>,<{}get-content-command>,<{}get-id-command>,<{}get-task-assigned-as-business-admin-command>,<{}get-task-assigned-as-excluded-owner-command>,<{}get-task-assigned-as-initiator-command>,<{}get-task-assigned-as-potential-owner-by-exp-date-command>,<{}get-task-assigned-as-potential-owner-command>,<{}get-task-assigned-as-potential-owner-paging-command>,<{}get-task-assigned-as-recipient-command>,<{}get-task-assigned-as-stakeholder-command>,<{}get-task-assigned-by-groups-command>,<{}get-task-by-work-item-id-command>,<{}get-task-command>,<{}get-task-content-command>,<{}get-task-definition-command>,<{}get-task-owned-by-exp-date-before-date-command>,<{}get-task-owned-by-exp-date-command>,<{}get-task-property-command>,<{}get-tasks-by-process-instance-id-command>,<{}get-tasks-by-status-by-process-instance-id-command>,<{}get-tasks-by-various-fields-command>,<{}get-tasks-for-process-command>,<{}get-tasks-owned-command>,<{}get-variable-command>,<{}getFactCountCommand>,<{}getGlobalCommand>,<{}getProcessIdsCommand>,<{}getProcessInstanceByCorrelationKeyCommand>,<{}getProcessInstanceCommand>,<{}getProcessInstancesCommand>,<{}getWorkItemCommand>,<{}insert-object-command>,<{}int-type>,<{}list>,<{}log-instance-list>,<{}long-list-response>,<{}long-type>,<{}namedObjectModel>,<{}node-instance-log>,<{}nominate-task-command>,<{}objectModel>,<{}other-response>,<{}primitive-response>,<{}process-definition>,<{}process-definition-list>,<{}process-instance>,<{}process-instance-form-response>,<{}process-instance-list-response>,<{}process-instance-log>,<{}process-instance-response>,<{}process-instance-with-vars-response>,<{}process-sub-task-command>,<{}query-process-instance-info>,<{}query-process-instance-result>,<{}query-task-info>,<{}query-task-result>,<{}release-task-command>,<{}response>,<{}resume-task-command>,<{}setGlobalCommand>,<{}setProcessInstanceVariablesCommand>,<{}short-type>,<{}signalEventCommand>,<{}skip-task-command>,<{}start-task-command>,<{}startCorrelatedProcessCommand>,<{}startProcessCommand>,<{}stop-task-command>,<{}string-list-response>,<{}string-type>,<{}suspend-task-command>,<{}task>,<{}task-content-response>,<{}task-form-response>,<{}task-response>,<{}task-summary>,<{}task-summary-list-response>,<{}update-command>,<{}variable-info>,<{}variable-instance-log>,<{}variables-response>,<{}work-item-response>	at com.sun.xml.bind.v2.runtime.unmarshaller.UnmarshallingContext.handleEvent(UnmarshallingContext.java:662)	at com.sun.xml.bind.v2.runtime.unmarshaller.Loader.reportError(Loader.java:258)	at com.sun.xml.bind.v2.runtime.unmarshaller.Loader.reportError(Loader.java:253)	at com.sun.xml.bind.v2.runtime.unmarshaller.Loader.reportUnexpectedChildElement(Loader.java:120)	at com.sun.xml.bind.v2.runtime.unmarshaller.UnmarshallingContext$DefaultRootLoader.childElement(UnmarshallingContext.java:1063)	at com.sun.xml.bind.v2.runtime.unmarshaller.UnmarshallingContext._startElement(UnmarshallingContext.java:498)	at com.sun.xml.bind.v2.runtime.unmarshaller.UnmarshallingContext.startElement(UnmarshallingContext.java:480)	at com.sun.xml.bind.v2.runtime.unmarshaller.SAXConnector.startElement(SAXConnector.java:150)	at oracle.xml.parser.v2.NonValidatingParser.parseElement(NonValidatingParser.java:1635)	at oracle.xml.parser.v2.NonValidatingParser.parseRootElement(NonValidatingParser.java:458)	at oracle.xml.parser.v2.NonValidatingParser.parseDocument(NonValidatingParser.java:404)	at oracle.xml.parser.v2.XMLParser.parse(XMLParser.java:245)	at com.sun.xml.bind.v2.runtime.unmarshaller.UnmarshallerImpl.unmarshal0(UnmarshallerImpl.java:217)	at com.sun.xml.bind.v2.runtime.unmarshaller.UnmarshallerImpl.unmarshal(UnmarshallerImpl.java:189)	at javax.xml.bind.helpers.AbstractUnmarshallerImpl.unmarshal(AbstractUnmarshallerImpl.java:157)	at javax.xml.bind.helpers.AbstractUnmarshallerImpl.unmarshal(AbstractUnmarshallerImpl.java:204)	at org.kie.services.client.serialization.JaxbSerializationProvider.deserialize(JaxbSerializationProvider.java:235)