Fix type warnings

Change-Id: I97139d6bf22507e5e822d3e4978265e322ce5e1b
diff --git a/src/main/java/com/googlesource/gerrit/plugins/quota/GetQuota.java b/src/main/java/com/googlesource/gerrit/plugins/quota/GetQuota.java
index b59b272..d735e95 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/quota/GetQuota.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/quota/GetQuota.java
@@ -44,7 +44,7 @@
   }
 
   @Override
-  public Response apply(ProjectResource rsrc) throws ExecutionException {
+  public Response<QuotaInfo> apply(ProjectResource rsrc) throws ExecutionException {
     return Response.ok(getInfo(rsrc.getNameKey()));
   }
 
diff --git a/src/main/java/com/googlesource/gerrit/plugins/quota/ListQuotas.java b/src/main/java/com/googlesource/gerrit/plugins/quota/ListQuotas.java
index 538e746..5031937 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/quota/ListQuotas.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/quota/ListQuotas.java
@@ -51,7 +51,7 @@
   }
 
   @Override
-  public Response apply(ConfigResource resource)
+  public Response<Map<String, QuotaInfo>> apply(ConfigResource resource)
       throws RestApiException, ExecutionException, PermissionBackendException {
     Map<String, QuotaInfo> result = Maps.newTreeMap();
     ListProjects lister = listProjects.get();