465132: submit record labels can't be null

Change-Id: I578046add685b304694867855d8a10fe8be773b7
Task-Url: https://bugs.eclipse.org/bugs/show_bug.cgi?id=465132
Signed-off-by: Nicholas Folk <Nicholas.folk@tasktop.com>
diff --git a/org.eclipse.mylyn.gerrit.core/src/org/eclipse/mylyn/internal/gerrit/core/client/GerritClient29.java b/org.eclipse.mylyn.gerrit.core/src/org/eclipse/mylyn/internal/gerrit/core/client/GerritClient29.java
index c3171ac..1abdabb 100644
--- a/org.eclipse.mylyn.gerrit.core/src/org/eclipse/mylyn/internal/gerrit/core/client/GerritClient29.java
+++ b/org.eclipse.mylyn.gerrit.core/src/org/eclipse/mylyn/internal/gerrit/core/client/GerritClient29.java
@@ -266,7 +266,7 @@
 					}
 				}, monitor);
 		for (SubmitRecord element : submitRecordArray) {
-			List<SubmitRecord.Label> list = null;
+			List<SubmitRecord.Label> list = Collections.emptyList();
 			if (element.getStatus().equalsIgnoreCase("OK")) { //$NON-NLS-1$
 				list = element.createLabel(element, element.getOkMap(), OK);
 			} else if (element.getStatus().equalsIgnoreCase("NOT_READY")) { //$NON-NLS-1$