The section _"Analyzing the Memory Consumption of LinkedList and ArrayList"_ makes a reference to MemoryLayout OpenJDK tool. _"We are using the [MemoryLayout](https://dev.java/learn/api/collections-framework/arraylist-vs-linkedlist/java.base/java/lang/foreign/MemoryLayout.html) OpenJDK tool to measure the memory consumed by these implementations."_ The link to _MemoryLayout_ is, unfortunately, broken.