Breaking Java Badly — Programmatic JVM Deconstruction (Part three) The Instability is the Pattern Previously, we demonstrated how a simple misconfiguration in a producer-consumer test frame can yield intermittent yet crippling instabilities. Well over two thousand separate runs, generated from two specific producer-consumer tests, (Test One — Linked List and…

Breaking Java Badly (Part Two) — Programmatic Destructive Testing of Java Virtual Machines In part one we employed a simple memory stress test (Producer-Consumer Test One) to demonstrate how alarming instabilities can be introduced into the JVM by naively sizing an internal queue. In part two, let’s see what happens…

Breaking Java Badly — Programmatic Destructive Testing of Java Virtual Machines (Part One) Java heap issues can be difficult to detect because of how the Java Virtual Machine (JVM) responds to memory pressure. It is designed to complete runnable tasks while being almost entirely indifferent to most performance considerations. It…