--- old/src/hotspot/share/gc/g1/g1RootProcessor.hpp	2018-06-11 15:58:47.949707506 +0200
+++ new/src/hotspot/share/gc/g1/g1RootProcessor.hpp	2018-06-11 15:58:47.745700495 +0200
@@ -99,6 +99,7 @@
 
 public:
   G1RootProcessor(G1CollectedHeap* g1h, uint n_workers);
+  ~G1RootProcessor();
 
   // Apply correct closures from pss to the strongly and weakly reachable roots in the system
   // in a single pass.