# HG changeset patch
# User stuefe
# Date 1476336338 -7200
#      Thu Oct 13 07:25:38 2016 +0200
# Node ID e2cd6567f3b1cfa3d3f3b7539ae46b3fdafaddca
# Parent  b1c62e595c4ac0a3256296b8c13d871db9003fe8
8167650: NMT should check for invalid MEMFLAGS
Reviewed-by:

diff --git a/src/share/vm/services/nmtCommon.hpp b/src/share/vm/services/nmtCommon.hpp
--- a/src/share/vm/services/nmtCommon.hpp
+++ b/src/share/vm/services/nmtCommon.hpp
@@ -55,16 +55,19 @@
  public:
   // Map memory type to index
   static inline int flag_to_index(MEMFLAGS flag) {
+    assert(flag >= 0 && flag < mt_number_of_types, "Invalid flag value %d.", (int)flag);
     return (flag & 0xff);
   }
 
   // Map memory type to human readable name
   static const char* flag_to_name(MEMFLAGS flag) {
+    assert(flag >= 0 && flag < mt_number_of_types, "Invalid flag value %d.", (int)flag);
     return _memory_type_names[flag_to_index(flag)];
   }
 
   // Map an index to memory type
   static MEMFLAGS index_to_flag(int index) {
+    assert(index >= 0 && index < (int) mt_number_of_types, "Invalid index value %d.", index);
     return (MEMFLAGS)index;
   }