In my talk about the Security Manager, I demo a hacks that takes advantage of the Attach API . The later requires to know about the PID of the JVM one wants to attach to. Because my good friend Evgeny Mandrikov couldn’t attend the talk at Devoxx Ukraine, I did a quick private demo just for him.

To get the PID of the JVM I wanted to attach to, I used the ps -ef | grep java command. At that point, Evgeny told me about the jps command, and I understood there were a lot of JDK commands I didn’t know about, besides the most common ones. Here’s a list about the ones that are useful to fix issues on deployed applications.