private boolean acquireTokenSilentAsync( String authority, String resourceUrl, String clientId, String userId) { final AuthenticationContext authContext; try { authContext = getOrCreateContext(authority); } catch (Exception e) { callbackContext.sendPluginResult(new PluginResult(PluginResult.Status.ERROR, e.getMessage())); return true; } authContext.acquireTokenSilent( resourceUrl, clientId, userId, new DefaultAuthenticationCallback(callbackContext)); return true; }