#414 Adjust to the interface not returning optionals anymore

core/src/test/java/fitconnect/impl/auth/OAuthTokenIntegrationTest.java

@@ -27,12 +27,12 @@ class OAuthTokenIntegrationTest {
         final Sender sender = new SubmissionSender(authService, null, null, null);
 
         // When
-        Optional<OAuthToken> token = sender.retrieveOAuthToken(clientId, secret, scope1,scope2);
+        OAuthToken token = sender.retrieveOAuthToken(clientId, secret, scope1,scope2);
 
         // Then
-        assertTrue(token.isPresent());
-        assertNull(token.get().getError());
-        assertNotNull(token.get().getAccessToken());
-        assertEquals(1800, token.get().getExpiresIn());
+        assertNotNull(token);
+        assertNull(token.getError());
+        assertNotNull(token.getAccessToken());
+        assertEquals(1800, token.getExpiresIn());
     }
 }
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