Runtime1::arraycopy_count_address uses Runtime1::_oop_arraycopy_cnt instead of the file static _oop_arraycopy_cnt variable.

int Runtime1::_oop_arraycopy_cnt = 0;
...
static int _byte_arraycopy_cnt = 0;
static int _short_arraycopy_cnt = 0;
static int _int_arraycopy_cnt = 0;
static int _long_arraycopy_cnt = 0;
static int _oop_arraycopy_cnt = 0;
...
address Runtime1::arraycopy_count_address(BasicType type) {
  switch (type) {
  case T_BOOLEAN:
  case T_BYTE: return (address)&_byte_arraycopy_cnt;
  case T_CHAR:
  case T_SHORT: return (address)&_short_arraycopy_cnt;
  case T_FLOAT:
  case T_INT: return (address)&_int_arraycopy_cnt;
  case T_DOUBLE:
  case T_LONG: return (address)&_long_arraycopy_cnt;
  case T_ARRAY:
  case T_OBJECT: return (address)&_oop_arraycopy_cnt;
  default:
    ShouldNotReachHere();
    return NULL;
  }
}