From 4868740ed7f40ce0cf162f17a8224856ae10a4b0 Mon Sep 17 00:00:00 2001
From: Kevin Walter <kevin.walter.private@googlemail.com>
Date: Tue, 15 Apr 2014 02:00:42 +0200
Subject: [PATCH] fix NullPointerException in ITicketService and add TestCase

---
 .../com/gitblit/tickets/ITicketService.java   | 37 ++++++++++---------
 .../com/gitblit/tests/TicketServiceTest.java  |  4 ++
 2 files changed, 24 insertions(+), 17 deletions(-)

diff --git a/src/main/java/com/gitblit/tickets/ITicketService.java b/src/main/java/com/gitblit/tickets/ITicketService.java
index 9522e420..7d699757 100644
--- a/src/main/java/com/gitblit/tickets/ITicketService.java
+++ b/src/main/java/com/gitblit/tickets/ITicketService.java
@@ -713,27 +713,30 @@ public abstract class ITicketService {
 	public final TicketModel getTicket(RepositoryModel repository, long ticketId) {
 		TicketKey key = new TicketKey(repository, ticketId);
 		TicketModel ticket = ticketsCache.getIfPresent(key);
-
+		
+		// if ticket not cached
 		if (ticket == null) {
-			// load & cache ticket
+			//load ticket
 			ticket = getTicketImpl(repository, ticketId);
-			if (ticket.hasPatchsets()) {
-				Repository r = repositoryManager.getRepository(repository.name);
-				try {
-					Patchset patchset = ticket.getCurrentPatchset();
-					DiffStat diffStat = DiffUtils.getDiffStat(r, patchset.base, patchset.tip);
-					// diffstat could be null if we have ticket data without the
-					// commit objects.  e.g. ticket replication without repo
-					// mirroring
-					if (diffStat != null) {
-						ticket.insertions = diffStat.getInsertions();
-						ticket.deletions = diffStat.getDeletions();
+			// if ticket exists
+			if (ticket != null) {
+				if (ticket.hasPatchsets()) {
+					Repository r = repositoryManager.getRepository(repository.name);
+					try {
+						Patchset patchset = ticket.getCurrentPatchset();
+						DiffStat diffStat = DiffUtils.getDiffStat(r, patchset.base, patchset.tip);
+						// diffstat could be null if we have ticket data without the
+						// commit objects.  e.g. ticket replication without repo
+						// mirroring
+						if (diffStat != null) {
+							ticket.insertions = diffStat.getInsertions();
+							ticket.deletions = diffStat.getDeletions();
+						}
+					} finally {
+						r.close();
 					}
-				} finally {
-					r.close();
 				}
-			}
-			if (ticket != null) {
+				//cache ticket
 				ticketsCache.put(key, ticket);
 			}
 		}
diff --git a/src/test/java/com/gitblit/tests/TicketServiceTest.java b/src/test/java/com/gitblit/tests/TicketServiceTest.java
index 5f94a46e..d91ce533 100644
--- a/src/test/java/com/gitblit/tests/TicketServiceTest.java
+++ b/src/test/java/com/gitblit/tests/TicketServiceTest.java
@@ -92,6 +92,10 @@ public abstract class TicketServiceTest extends GitblitUnitTest {
 
 	@Test
 	public void testLifecycle() throws Exception {
+		// query non-existent ticket
+		TicketModel nonExistent = service.getTicket(getRepository(), 0);
+		assertNull(nonExistent);
+		
 		// create and insert a ticket
 		Change c1 = newChange("testCreation() " + Long.toHexString(System.currentTimeMillis()));
 		TicketModel ticket = service.createTicket(getRepository(), c1);
-- 
2.39.5