Java VisualVM is a tool that provides a visual interface for viewing detailed information about Java applications while they are running on a Java Virtual Machine (JVM), and for troubleshooting and profiling these applications. As an application developer you can easily monitor, profile, take thread dumps and browse heap dumps. Furthermore, developers can extend Java VisualVM to add new functionality by creating and posting plug-ins to the tool's built-in update center.

With the new release, VisualVM 1.2 introduces many new features such as: sampling profiler, redesigned charts, enhanced jstatd support and customizable proxy settings. You can download it here or for more features and enhancements you can take a look at the release note.