--- a/src/hotspot/share/gc/z/zCollectedHeap.hpp	Tue May 14 09:12:06 2019 +0200
+++ b/src/hotspot/share/gc/z/zCollectedHeap.hpp	Tue May 14 09:55:02 2019 +0200
@@ -29,10 +29,11 @@
 #include "gc/z/zBarrierSet.hpp"
 #include "gc/z/zDirector.hpp"
 #include "gc/z/zDriver.hpp"
+#include "gc/z/zHeap.hpp"
 #include "gc/z/zInitialize.hpp"
-#include "gc/z/zHeap.hpp"
 #include "gc/z/zRuntimeWorkers.hpp"
 #include "gc/z/zStat.hpp"
+#include "gc/z/zUncommitter.hpp"
 
 class ZCollectedHeap : public CollectedHeap {
   friend class VMStructs;
@@ -44,6 +45,7 @@
   ZHeap             _heap;
   ZDirector*        _director;
   ZDriver*          _driver;
+  ZUncommitter*     _uncommitter;
   ZStat*            _stat;
   ZRuntimeWorkers   _runtime_workers;