Although Java lacks a true sizeof () equivalent, the Instrumentation interface introduced with J2SE5 can be used to get an estimate of the size of a particular object via its getObjectSize (Object ...

The Java Function interface is quite simple. It takes a single Java object as an argument, and returns a single Java object when the method concludes. Any method you can conjure up takes an object and ...

You can fix your Java memory leak problem without a costly JVM heap dump. Just use Java Flight Recorder's Old Object Sample event and view the recording in JDK Mission Control.

Valhalla is nothing short of a Java language overhaul, promising to correct longstanding performance issues. Here’s a first look at what’s coming, starting with the new value classes and ...