MONITORING AN APPLICATION IN A PROCESS VIRTUAL MACHINE

An application that runs in a process virtual machine is monitored by injecting listening code into a target class of the application. The listening code collects and forwards data to a monitoring agent. The target class is configured for monitoring according to alternative embodiments. In response to the process virtual machine providing notification of an event, such a loading the target class, the listening code may be injected into the target class. In another embodiment, the process virtual machine is configured to load a first minor class containing a minor entry point to the application. A mirror target class is loaded in response to a request to load the target class. The minor target class contains a minor entry point to the target class and the listening code. In another embodiment, listening code may be added to the target class before running the application.