in library/src/main/java/org/apache/fineract/cn/permittedfeignclient/service/ApplicationAccessTokenService.java [95:99]
public String getAccessToken(final String user, final String tenant, final @Nullable String endpointSetIdentifier) {
final TokenCacheKey tokenCacheKey = new TokenCacheKey(user, tenant, endpointSetIdentifier);
final Authentication authentication = accessTokenCache.get(tokenCacheKey);
return authentication.getAccessToken();
}