CheckQueryBuilder: Adapt to new type parameters

Change-Id: I3545f7f73c0f9443d785a3a40e391ec4615e85f4
diff --git a/java/com/google/gerrit/plugins/checks/index/CheckQueryBuilder.java b/java/com/google/gerrit/plugins/checks/index/CheckQueryBuilder.java
index e8fe87e..9cdcb6d 100644
--- a/java/com/google/gerrit/plugins/checks/index/CheckQueryBuilder.java
+++ b/java/com/google/gerrit/plugins/checks/index/CheckQueryBuilder.java
@@ -24,7 +24,7 @@
 import com.google.inject.Inject;
 import java.util.Arrays;
 
-public class CheckQueryBuilder extends QueryBuilder<Check> {
+public class CheckQueryBuilder extends QueryBuilder<Check, CheckQueryBuilder> {
   public static final String FIELD_CHECKER = "checker";
   public static final String FIELD_STATE = "state";
 
@@ -33,7 +33,7 @@
 
   @Inject
   CheckQueryBuilder() {
-    super(mydef);
+    super(mydef, null);
   }
 
   @Operator