This is kind of cool, Springsource (a division of VMware) announced the release of Hyperic 4.4 which is a tool used for virtual java and other web applications. I honestly do not know too much about the application, however there is a big push with integration with vCenter. Below is taking from their offical press release:
Rapid Diagnosis of Virtualized Application Performance Problems:
IT operations teams can now use Hyperic to rapidly pinpoint the cause of performance issues of applications running on virtualized infrastructure, by providing them with visibility into all application infrastructure layers, enabling them to determine whether the root cause of issues lies within an application, its guest operating system, or its ESX host. System administrators can easily compare performance data between an application and its corresponding virtual machine and ESX host via a new Hyperic user interface. This UI enables system administrators to reduce mean time to resolution (MTTR) and increase mean time between failures (MTBF).