diff --git a/src/main/java/com/googlesource/gerrit/plugins/its/bugzilla/BugzillaClient.java b/src/main/java/com/googlesource/gerrit/plugins/its/bugzilla/BugzillaClient.java
index 16f5b12..cb1c8aa 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/its/bugzilla/BugzillaClient.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/its/bugzilla/BugzillaClient.java
@@ -34,7 +34,7 @@
 
   private final BugzillaConnector connector;
   private final String xmlRpcUrl;
-  private static HashMap<Fields, Set<String>> legalFieldValues = new HashMap<Fields, Set<String>>();
+  private static HashMap<Fields, Set<String>> legalFieldValues = new HashMap<>();
 
   public BugzillaClient(final String baseUrl) throws ConnectionException {
     this(baseUrl, "/xmlrpc.cgi");