http://www.infoq.com/articles/Advanced-Java-Debugging-Techniques
https://plumbr.eu/blog/who-is-calling-this-method
http://netbeans.dzone.com/articles/debugging-netbeans-with-visualvm-and-btrace?page=0,2
2012
http://01ms.blogspot.com/2012/08/java-application-profiling-using-visual.html
https://bsmadhu.wordpress.com/2012/07/01/btrace-troubleshooting-tool-for-java-applications/