434: Adding a contributor without a full name gives a NPE

Reviewed-by: ehelin

Author: rwestberg

bots/pr/src/main/java/org/openjdk/skara/bots/pr/ContributorCommand.java

@@ -65,7 +65,12 @@ private Optional<EmailAddress> parseUser(String user, PullRequest pr, CensusInst
             }
         } else {
             try {
-                return Optional.of(EmailAddress.parse(user));
+                var email = EmailAddress.parse(user);
+                if (email.fullName().isPresent()) {
+                    return Optional.of(email);
+                } else {
+                    return Optional.empty();
+                }
             } catch (RuntimeException e) {
                 return Optional.empty();
             }
@@ -74,7 +79,7 @@ private Optional<EmailAddress> parseUser(String user, PullRequest pr, CensusInst
         if (contributor.fullName().isPresent()) {
             return Optional.of(EmailAddress.from(contributor.fullName().get(), contributor.username() + "@openjdk.org"));
         } else {
-            return Optional.of(EmailAddress.from(contributor.username() + "@openjdk.org"));
+            return Optional.empty();
         }
     }
 

bots/pr/src/test/java/org/openjdk/skara/bots/pr/ContributorTests.java

@@ -227,6 +227,11 @@ void invalidContributor(TestInfo testInfo) throws IOException {
             pr.addComment("/contributor add someone");
             TestBotRunner.runPeriodicItems(prBot);
             assertLastCommentContains(pr, "Could not parse `someone` as a valid contributor");
+
+            // No full name
+            pr.addComment("/contributor add some@one");
+            TestBotRunner.runPeriodicItems(prBot);
+            assertLastCommentContains(pr, "Could not parse `some@one` as a valid contributor");
         }
     }