# Package com.sun.jdi.event

package com.sun.jdi.event
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.

Since:
  1.3

Related Packages
Package
Description
com.sun.jdi
This is the core package of the Java Debug Interface (JDI), it defines mirrors for values, types, and the target VirtualMachine itself - as well bootstrapping facilities.
com.sun.jdi.connect
This package defines connections between the virtual machine using the JDI and the target virtual machine.
com.sun.jdi.request
This package is used to request that a JDI event be sent under specified conditions.
Interfaces
Class
Description
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.