This package defines JDI events and event processing. An Event is always a member of an EventSet, which is retrieved from the EventQueue. Examples of Events include "breakpoints events", "thread creation events" and "virtual machine death event". With the exception of termination events, all events received must be requested with an "EventRequest". The com.sun.jdi.request package defines event requests and event request management.

Methods may be added to the interfaces in the JDI packages in future releases. Existing packages may be renamed if the JDI becomes a standard extension.


AccessWatchpointEvent Notification of a field access in the target VM. 
BreakpointEvent Notification of a breakpoint in the target VM. 
ClassPrepareEvent Notification of a class prepare in the target VM. 
ClassUnloadEvent Notification of a class unload in the target VM. 
Event An occurrence in a target VM that is of interest to a debugger. 
EventIterator EventIterators are unmodifiable. 
EventQueue Manager of incoming debugger events for a target VM. 
EventSet Several Event objects may be created at a given time by the target VirtualMachine
ExceptionEvent Notification of an exception in the target VM. 
LocatableEvent Abstract superinterface of events which have both location and thread. 
MethodEntryEvent Notification of a method invocation in the target VM. 
MethodExitEvent Notification of a method return in the target VM. 
ModificationWatchpointEvent Notification of a field modification in the target VM. 
MonitorContendedEnteredEvent Notification that a thread in the target VM is entering a monitor after waiting for it to be released by another thread. 
MonitorContendedEnterEvent Notification that a thread in the target VM is attempting to enter a monitor that is already acquired by another thread. 
MonitorWaitedEvent Notification that a thread in the target VM has finished waiting on an monitor object. 
MonitorWaitEvent Notification that a thread in the target VM is about to wait on a monitor object. 
StepEvent Notification of step completion in the target VM. 
ThreadDeathEvent Notification of a completed thread in the target VM. 
ThreadStartEvent Notification of a new running thread in the target VM. 
VMDeathEvent Notification of target VM termination. 
VMDisconnectEvent Notification of disconnection from target VM. 
VMStartEvent Notification of initialization of a target VM. 
WatchpointEvent Notification of a field triggered event encountered by a thread in the target VM.