@PostMapping(consumes = {
        OAuth20Constants.INTROSPECTION_JWT_HEADER_CONTENT_TYPE,
        MediaType.APPLICATION_JSON_VALUE,
        MediaType.APPLICATION_FORM_URLENCODED_VALUE
    }, produces = {
        MediaType.APPLICATION_JSON_VALUE,
        OAuth20Constants.INTROSPECTION_JWT_HEADER_CONTENT_TYPE
    },
        value = {
            '/' + OidcConstants.BASE_OIDC_URL + '/' + OidcConstants.INTROSPECTION_URL,
            "/**/" + OidcConstants.INTROSPECTION_URL
        })
    @Operation(summary = "Handle OIDC introspection request")
    @Override
    public ResponseEntity handlePostRequest(final HttpServletRequest request, final HttpServletResponse response) throws Throwable {
        return super.handlePostRequest(request, response);
    }
This is {@link OidcIntrospectionEndpointController}.

@author Misagh Moayyed
@since 5.2.0
support/cas-server-support-oidc-core-api/src/main/java/org/apereo/cas/oidc/web/controllers/introspection/OidcIntrospectionEndpointController.java