--- a/src/hotspot/share/gc/shared/workgroup.cpp	Wed Sep 11 14:16:27 2019 +0200
+++ b/src/hotspot/share/gc/shared/workgroup.cpp	Wed Sep 11 14:16:30 2019 +0200
@@ -454,7 +454,7 @@
 
 
 SubTasksDone::~SubTasksDone() {
-  if (_tasks != NULL) FREE_C_HEAP_ARRAY(uint, _tasks);
+  FREE_C_HEAP_ARRAY(uint, _tasks);
 }
 
 // *** SequentialSubTasksDone