Performance tuning with XRebel and friends
Analysing and optimising the performance of a complex web application using XRebel, Chrome Dev Tools and the IntelliJ IDEA Profiler.
J2EE
JolokiaPwn - Information disclosure, DoS and more in Java web servers
How the popular tool Jolokia, commonly deployed in J2EE applications but also commonly misconfigured, can be used to disclose information or execute commands, often without authentication.