src/hotspot/share/gc/parallel/psMarkSweepDecorator.hpp

8221260: Initialize more class members on construction, remove some unused ones
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                         size_t word_len);
 
  public:
   PSMarkSweepDecorator(MutableSpace* space, ObjectStartArray* start_array,
                        size_t allowed_dead_ratio) :
-    _space(space), _start_array(start_array),
-    _allowed_dead_ratio(allowed_dead_ratio) { }
+    _space(space),
+    _start_array(start_array),
+    _first_dead(NULL),
+    _end_of_live(NULL),
+    _compaction_top(NULL),
+    _allowed_dead_ratio(allowed_dead_ratio){ }
 
   // During a compacting collection, we need to collapse objects into
   // spaces in a given order. We want to fill space A, space B, and so
   // on. The code that controls that order is in the following methods.
   static void set_destination_decorator_tenured();