Performing an application snapshot using process virtual machine resources

A computer system comprising one or more processors, one or more computer-readable memories, and one or more computer-readable storage devices, and program instructions stored on at least one of the one or more storage devices for execution by at least one of the one or more processors via at least one of the one or more memories, the stored program instructions comprising:

• program instructions to register a snapshot handler with an event monitoring subsystem of a process virtual machine, the registering specifying a trigger event of the snapshot handler, wherein the trigger event comprises execution of a specified portion of an application executing in the process virtual machine, the trigger event specified externally from a source code of the application;
• and
• program instructions to execute, responsive to the event monitoring subsystem detecting an occurrence of the trigger event, the snapshot handler, execution of the snapshot handler comprising storing data of an execution state of the process virtual machine at a time of occurrence of the trigger event.

A cloud environment, comprising one or more processors, one or more computer-readable memories, and one or more computer-readable storage devices, and program instructions stored on at least one of the one or more storage devices for execution by at least one of the one or more processors via at least one of the one or more memories, the stored program instructions comprising:

• program instructions to register a snapshot handler with an event monitoring subsystem of a process virtual machine, the registering specifying a trigger event of the snapshot handler, wherein the trigger event comprises execution of a specified portion of an application executing in the process virtual machine, the trigger event specified externally from a source code of the application;
• and
• program instructions to execute, responsive to the event monitoring subsystem detecting an occurrence of the trigger event, the snapshot handler, execution of the snapshot handler comprising storing data of an execution state of the process virtual machine at a time of occurrence of the trigger event.