--- old/src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp	2014-06-18 08:47:17.738220561 +0200
+++ new/src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp	2014-06-18 08:47:17.628222178 +0200
@@ -1733,7 +1733,7 @@
 
   verify_region_sets_optional();
 
-  size_t expand_bytes = MAX2(word_size * HeapWordSize, MinHeapDeltaBytes);
+  size_t expand_bytes = MAX2(word_size * HeapWordSize, (size_t)MinHeapDeltaBytes);
   ergo_verbose1(ErgoHeapSizing,
                 "attempt heap expansion",
                 ergo_format_reason("allocation request failed")