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Finding and Crushing Bugs and More with JFR

Abstract

Some of the most difficult issues a developer will face are slow developing resources leaks, or errors that occur at infrequent intervals. When these happen, finding the root cause can be difficult, and a frequent recourse by developers is to add a lot of logging statements around suspected problem sites. What if I told you there was a better option, and that option already existed right in the JVM you are already running?

JDK Flight Recorder (JFR), as its namesake suggests, is a low-overhead profiling and diagnostic tool that's been built directly into the JDK since JDK 7. In this presentation we are going to look at how developers can leverage JFR's powerful API and reporting tools for tracking down those difficult bugs as well as how JFR can be incorporated into the development process.

Billy Korando

Billy Korando is a Java Developer Advocate with the Java Platform Group at Oracle. With over a decade of experience in Java, Billy brings a passion for helping developers find ways to reduce tedious work; such as project initiation, deployment, testing and validation, through automation and adopting the latest features and tools in the Java ecosystem.

Outside of work Billy enjoys traveling, playing kickball, and cheering on the Kansas City Chiefs. Billy also co-organizes the Kansas City Java Users Group.