diff a/src/hotspot/share/services/memoryManager.cpp b/src/hotspot/share/services/memoryManager.cpp
--- a/src/hotspot/share/services/memoryManager.cpp
+++ b/src/hotspot/share/services/memoryManager.cpp
@@ -141,12 +141,12 @@
   f->do_oop((oop*) &_memory_mgr_obj);
 }
 
 GCStatInfo::GCStatInfo(int num_pools) {
   // initialize the arrays for memory usage
-  _before_gc_usage_array = (MemoryUsage*) NEW_C_HEAP_ARRAY(MemoryUsage, num_pools, mtInternal);
-  _after_gc_usage_array  = (MemoryUsage*) NEW_C_HEAP_ARRAY(MemoryUsage, num_pools, mtInternal);
+  _before_gc_usage_array = NEW_C_HEAP_ARRAY(MemoryUsage, num_pools, mtInternal);
+  _after_gc_usage_array  = NEW_C_HEAP_ARRAY(MemoryUsage, num_pools, mtInternal);
   _usage_array_size = num_pools;
   clear();
 }
 
 GCStatInfo::~GCStatInfo() {