| AccessWatchpointRequest | 
 Request for notification when the contents of a field are accessed
 in the target VM. 
 | 
| BreakpointRequest | 
Identifies a  Location in the target VM at which
 execution should be stopped.  
 | 
| ClassPrepareRequest | 
 Request for notification when a class is prepared in the target VM. 
 | 
| ClassUnloadRequest | 
 Request for notification when a class is unloaded in the target VM. 
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| EventRequest | 
 Represents a request for notification of an event. 
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| ExceptionRequest | 
 Request for notification when an exception occurs in the target VM. 
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| MethodEntryRequest | 
 Request for notification when a method is invoked in the target VM. 
 | 
| MethodExitRequest | 
 Request for notification when a method returns in the target VM. 
 | 
| ModificationWatchpointRequest | 
 Request for notification when a field is set. 
 | 
| MonitorContendedEnteredRequest | 
 Request for notification of a thread in the target VM entering a monitor
 after waiting for it to be released by another thread. 
 | 
| MonitorContendedEnterRequest | 
 Request for notification of a thread in the target VM
 attempting to enter a monitor already acquired by another thread. 
 | 
| MonitorWaitedRequest | 
 Request for notification when a thread in the target VM has finished waiting on
 a monitor object. 
 | 
| MonitorWaitRequest | 
 Request for notification when a thread in the target VM is about to
 wait on a monitor object. 
 | 
| StepRequest | 
 Request for notification when a step occurs in the target VM. 
 | 
| ThreadDeathRequest | 
 Request for notification when a thread terminates in the target VM. 
 | 
| ThreadStartRequest | 
 Request for notification when a thread starts execution in the target VM. 
 | 
| VMDeathRequest | 
 Request for notification when the target VM terminates. 
 | 
| WatchpointRequest | 
Identifies a  Field in the target VM being watched.  
 |