500 error response when try to revoke OpenID Token

Products

• CA Single Sign On Secure Proxy Server (SiteMinder)
• CA Single Sign On SOA Security Manager (SiteMinder)
• CA Single Sign-On

Issue/Introduction

login successfully and create Authorization token has been created, after that  request  /affwebservices/CASSO/oidc/revoke by xmlHttpRequest (xhr) API client, and try to revoke token. It is encountered 500 internal server error in sometimes, and basically 200 OK response code.

access_log:
[10/Jul/2018:16:53:43 +0900] "GET /_dumpvars.pl?code=NzNiOTAxYzYtMzcxOS00YzIyLWI0MmItMGRhNWFkMWFiYjE0LTNFLy9GZU41WHh4ZXVpaFRMb3F4SVFDRzEwND0= HTTP/1.1" 200 6419
[10/Jul/2018:16:53:54 +0900] "POST /affwebservices/CASSO/oidc/revoke HTTP/1.1" 500 69

FWSTrace.log:
[07/10/2018][16:53:54][5524][8476][146cb0a6-eed27a6e-711037a0-dd37c41c-36f7301d-a75][OpenIDConnectServiceBase.java][sendJSONErrorResponse][ Sending error JSON message:
{"error":"server_error","error_description":"Internal Server Error."}
 with error code:500]

affwebservices.log:
[Tue Jul 10 2018 16:53:54][OpenIDConnectServiceBase.java][ERROR][sm-FedClient-03802] sm-FedClient-03802 ({"error":"server_error","error_description":"Internal Server Error."})

smtrace.log:
[07/10/2018][16:53:50.843][16:53:50][6424][8832][RevokeTokenTunnelService.java][prepareErrorResponse][][][][][][][][][][][][][][][][][][][][][OpenIDConnectRevokeTokenResponseData:
    Line 6208: OpenIDConnectRevokeTokenResponse [errorMessage=INTERNAL_SERVER_ERROR, errorCode=SERVER_ERROR, commonData=requestId: 2d8324b9-0946d997-ae0bf2b9-8674be0d-dbcb709d-98, serviceVersion: 0, serviceMinimumVersion: 0, fedApiVersion: 1]

Environment

Release:
Component: SMPLC

Resolution

xxxx