src/hotspot/share/memory/filemap.cpp

*** 992,1003 ****
    *num = region_num;
    return true;
  }
  
  bool FileMapInfo::verify_mapped_heap_regions(int first, int num) {
!   for (int i = first;
!            i <= first + num; i++) {
      if (!verify_region_checksum(i)) {
        return false;
      }
    }
    return true;
--- 992,1003 ----
    *num = region_num;
    return true;
  }
  
  bool FileMapInfo::verify_mapped_heap_regions(int first, int num) {
!   assert(num > 0, "sanity");
!   for (int i = first; i < first + num; i++) {
      if (!verify_region_checksum(i)) {
        return false;
      }
    }
    return true;
*** 1027,1036 ****
--- 1027,1037 ----
    }
  }
  #endif // INCLUDE_CDS_JAVA_HEAP
  
  bool FileMapInfo::verify_region_checksum(int i) {
+   assert(i >= 0 && i < MetaspaceShared::n_regions, "invalid region");
    if (!VerifySharedSpaces) {
      return true;
    }
  
    size_t sz = _header->_space[i]._used;