Notification of step completion in the target VM. The step event is generated immediately before the code at its location is executed. Thus, if the step is entering a new method (as might occur with StepRequest.STEP_INTO) the location of the event is the first instruction of the method. When a step leaves a method, the location of the event will be the first instruction after the call in the calling method; note that this location may not be at a line boundary, even if StepRequest.STEP_LINE was used.