--- a/src/hotspot/share/gc/epsilon/epsilonThreadLocalData.hpp	Wed May 30 14:02:58 2018 +0200
+++ b/src/hotspot/share/gc/epsilon/epsilonThreadLocalData.hpp	Wed May 30 14:03:03 2018 +0200
@@ -24,6 +24,9 @@
 #ifndef SHARE_VM_GC_EPSILON_EPSILONTHREADLOCALDATA_HPP
 #define SHARE_VM_GC_EPSILON_EPSILONTHREADLOCALDATA_HPP
 
+#include "runtime/thread.hpp"
+#include "utilities/debug.hpp"
+
 class EpsilonThreadLocalData {
 private:
   size_t _ergo_tlab_size;