Pure guesswork: Java stems from Sun. Sun made Solaris. And Solaris had an ideology about transparency and discoverability of running systems. They have some ou

Pure guesswork: Java stems from Sun. Sun made Solaris. And Solaris had an ideology about transparency and discoverability of running systems. They have some outright amazing tools for introspection into a binary that is running. This probably creates an environment in which the same would happen for the JVM. In fact, the `jstack` name seem very familiar to DTrace (and mdb(1)) users. Days since I last solved a problem on the JVM through a heapDump: 2.