2788466 - "No enum constant" error raised in REST Adapter with OAuth2.0

Within SAP Process Integration / Process Orchestration, a REST Adapter Receiver Communication Channel was configured with OAuth2.0 Grant Type flow. Some additional parameters were maintained in the table "OAuth 2.0 Additional Parameters"

During message processing, the following error is raised:

java.lang.IllegalArgumentException: No enum constant
com.sap.aii.adapter.rest.ejb.channel.OAuthAttribute.OAuth20ParamType.<Chosen Type>

• SAP NetWeaver 7.5
• SAP Process Integration

OAuth, Rest, 2.0, Token, Header, Query, Claim, Grant, Type, Parameter, Enum, Constant, Process Integration, PI, Process Orchestration, PO, 7.5, PI 7.5, PO 7.5, XI, AEX , KBA , BC-XI-CON-RST , Rest Adapter , Problem