src/share/vm/memory/collectorPolicy.cpp

@@ -390,11 +390,11 @@
       // Somebody has set a maximum heap size with the intention that we should not
       // exceed it. Adjust New/OldSize as necessary.
       uintx calculated_size = NewSize + OldSize;
       double shrink_factor = (double) MaxHeapSize / calculated_size;
       uintx smaller_new_size = align_size_down((uintx)(NewSize * shrink_factor), _gen_alignment);
-      FLAG_SET_ERGO(uintx, NewSize, MAX2(young_gen_size_lower_bound(), smaller_new_size));
+      FLAG_SET_ERGO(uintx, NewSize, MAX2(young_gen_size_lower_bound(), (size_t)smaller_new_size));
       _initial_young_size = NewSize;
 
       // OldSize is already aligned because above we aligned MaxHeapSize to
       // _heap_alignment, and we just made sure that NewSize is aligned to
       // _gen_alignment. In initialize_flags() we verified that _heap_alignment

@@ -455,11 +455,11 @@
     // Bound the maximum size by NewSize below (since it historically
     // would have been NewSize and because the NewRatio calculation could
     // yield a size that is too small) and bound it by MaxNewSize above.
     // Ergonomics plays here by previously calculating the desired
     // NewSize and MaxNewSize.
-    _max_young_size = MIN2(MAX2(_max_young_size, _initial_young_size), MaxNewSize);
+    _max_young_size = MIN2(MAX2(_max_young_size, _initial_young_size), (size_t)MaxNewSize);
   }
 
   // Given the maximum young size, determine the initial and
   // minimum young sizes.
 

@@ -485,11 +485,11 @@
       // For the case where NewSize is not set on the command line, use
       // NewRatio to size the initial generation size. Use the current
       // NewSize as the floor, because if NewRatio is overly large, the resulting
       // size can be too small.
       _initial_young_size =
-        MIN2(_max_young_size, MAX2(scale_by_NewRatio_aligned(_initial_heap_byte_size), NewSize));
+        MIN2(_max_young_size, MAX2(scale_by_NewRatio_aligned(_initial_heap_byte_size), (size_t)NewSize));
     }
   }
 
   if (PrintGCDetails && Verbose) {
     gclog_or_tty->print_cr("1: Minimum young " SIZE_FORMAT "  Initial young "