Remove "parsing" of "codeUUID" that is String, not UUID

 src/main/java/org/keycloak/protocol/cas/endpoints/AbstractValidateEndpoint.java

@@ -103,20 +103,12 @@
            throw new CASValidationException(CASErrorCode.INVALID_TICKET_SPEC, "Invalid format of the code", Response.Status.BAD_REQUEST);
        }

        String codeUUID = parsed[0];
        String userSessionId = parsed[1];
        String clientUUID = parsed[2];

        event.detail(Details.CODE_ID, userSessionId);
        event.session(userSessionId);

        // Parse UUID
        String codeUUID;
        try {
            codeUUID = parsed[0];
        } catch (IllegalArgumentException re) {
            event.error(Errors.INVALID_CODE);
            throw new CASValidationException(CASErrorCode.INVALID_TICKET_SPEC, "Invalid format of the UUID in the code", Response.Status.BAD_REQUEST);
        }

        // Retrieve UserSession
        UserSessionModel userSession = new UserSessionCrossDCManager(session).getUserSessionWithClient(realm, userSessionId, clientUUID);