Fix potential NPE when excluding last change author

diff --git a/src/main/java/com/gitblit/tickets/TicketNotifier.java b/src/main/java/com/gitblit/tickets/TicketNotifier.java
index 07371b1b0591768941ca027c2957eb315e046459..d6217b358e2c8495d61ef26652fe88e1b26ad779 100644 (file)
--- a/src/main/java/com/gitblit/tickets/TicketNotifier.java
+++ b/src/main/java/com/gitblit/tickets/TicketNotifier.java
@@ -596,7 +596,7 @@ public class TicketNotifier {
 
                // respect the author's email preference
                UserModel lastAuthor = userManager.getUserModel(lastChange.author);
-               if (!lastAuthor.getPreferences().isEmailMeOnMyTicketChanges()) {
+               if (lastAuthor != null && !lastAuthor.getPreferences().isEmailMeOnMyTicketChanges()) {
                        toAddresses.remove(lastAuthor.emailAddress);
                        ccAddresses.remove(lastAuthor.emailAddress);
                }