--- a/hotspot/src/share/vm/gc/g1/g1ParScanThreadState.hpp	Wed Aug 19 13:47:40 2015 +0200
+++ b/hotspot/src/share/vm/gc/g1/g1ParScanThreadState.hpp	Wed Aug 19 13:50:50 2015 +0200
@@ -35,6 +35,7 @@
 #include "memory/allocation.hpp"
 #include "oops/oop.hpp"
 
+class G1PLABAllocator;
 class HeapRegion;
 class outputStream;