java_gen: use correct type+default for of_flow_mod.out_group
diff --git a/test_data/of13/flow_modify.data b/test_data/of13/flow_modify.data
index 83234f5..6f3ebee 100644
--- a/test_data/of13/flow_modify.data
+++ b/test_data/of13/flow_modify.data
@@ -82,7 +82,7 @@
     .setPriority(6000)
     .setBufferId(OFBufferId.of(50))
     .setOutPort(OFPort.of(6))
-    .setOutGroup(8)
+    .setOutGroup(OFGroup.of(8))
     .setFlags(ImmutableSet.<OFFlowModFlags>of())
     .setMatch(
         factory.buildMatch()