Great for pinpointing the cause of excessive IO operations. Classload.java: React whenever a target class is loaded into the JVM. Very useful for debugging “jar-hell” situations.

Compare inheritance and composition, the two fundamental ways to relate Java classes, then practice debugging ClassCastExceptions in Java inheritance.

With architectures becoming more distributed and code more asynchronous, pinpointing and resolving errors in production is harder than ever. In this article we investigate five advanced techniques ...