--- old/src/hotspot/share/gc/g1/g1CollectedHeap.cpp	2020-02-11 14:19:29.936991188 +0100
+++ new/src/hotspot/share/gc/g1/g1CollectedHeap.cpp	2020-02-11 14:19:29.521978430 +0100
@@ -1799,8 +1799,8 @@
   // Create the G1ConcurrentMark data structure and thread.
   // (Must do this late, so that "max_regions" is defined.)
   _cm = new G1ConcurrentMark(this, prev_bitmap_storage, next_bitmap_storage);
-  if (_cm == NULL || !_cm->completed_initialization()) {
-    vm_shutdown_during_initialization("Could not create/initialize G1ConcurrentMark");
+  if (!_cm->completed_initialization()) {
+    vm_shutdown_during_initialization("Could not initialize G1ConcurrentMark");
     return JNI_ENOMEM;
   }
   _cm_thread = _cm->cm_thread();