EventRequestManager (Java SE 19 & JDK 19) (original) (raw)

Creates a new disabled ClassPrepareRequest. The new event request is added to the list managed by this EventRequestManager. Use EventRequest.enable() to activate this event request.
Returns:
the created ClassPrepareRequest

Creates a new disabled ClassUnloadRequest. The new event request is added to the list managed by this EventRequestManager. Use EventRequest.enable() to activate this event request.
Returns:
the created ClassUnloadRequest

Creates a new disabled ThreadStartRequest. The new event request is added to the list managed by this EventRequestManager. Use EventRequest.enable() to activate this event request.
Returns:
the created ThreadStartRequest

Creates a new disabled ThreadDeathRequest. The new event request is added to the list managed by this EventRequestManager. Use EventRequest.enable() to activate this event request.
Returns:
the created ThreadDeathRequest

Creates a new disabled ExceptionRequest. The new event request is added to the list managed by this EventRequestManager. Use EventRequest.enable() to activate this event request.
A specific exception type and its subclasses can be selected for exception events. Caught exceptions, uncaught exceptions, or both can be selected. Note, however, that at the time an exception is thrown, it is not always possible to determine whether it is truly caught. SeeExceptionEvent.catchLocation() for details.
Parameters:
refType - If non-null, specifies that exceptions which are instances of refType will be reported. Note: this will include instances of sub-types. If null, all instances will be reported
notifyCaught - If true, caught exceptions will be reported.
notifyUncaught - If true, uncaught exceptions will be reported.
Returns:
the created ExceptionRequest

Creates a new disabled MethodEntryRequest. The new event request is added to the list managed by this EventRequestManager. Use EventRequest.enable() to activate this event request.
Returns:
the created MethodEntryRequest

Creates a new disabled MethodExitRequest. The new event request is added to the list managed by this EventRequestManager. Use EventRequest.enable() to activate this event request.
Returns:
the created MethodExitRequest

Returns:
the created MonitorContendedEnterRequest
Throws:
[UnsupportedOperationException](../../../../../java.base/java/lang/UnsupportedOperationException.html "class in java.lang") - if the target VM does not support this operation.
Since:
1.6

Returns:
the created MonitorContendedEnteredRequest
Throws:
[UnsupportedOperationException](../../../../../java.base/java/lang/UnsupportedOperationException.html "class in java.lang") - if the target VM does not support this operation.
Since:
1.6

Creates a new disabled MonitorWaitRequest. The new event request is added to the list managed by this EventRequestManager. Use EventRequest.enable() to activate this event request. Not all target virtual machines support this operation. Use VirtualMachine.canRequestMonitorEvents() to determine if the operation is supported.
Returns:
the created MonitorWaitRequest
Throws:
[UnsupportedOperationException](../../../../../java.base/java/lang/UnsupportedOperationException.html "class in java.lang") - if the target VM does not support this operation.
Since:
1.6

Creates a new disabled MonitorWaitedRequest. The new event request is added to the list managed by this EventRequestManager. Use EventRequest.enable() to activate this event request. Not all target virtual machines support this operation. Use VirtualMachine.canRequestMonitorEvents() to determine if the operation is supported.
Returns:
the created MonitorWaitedRequest
Throws:
[UnsupportedOperationException](../../../../../java.base/java/lang/UnsupportedOperationException.html "class in java.lang") - if the target VM does not support this operation.
Since:
1.6

Creates a new disabled StepRequest. The new event request is added to the list managed by this EventRequestManager. Use EventRequest.enable() to activate this event request.
The returned request will control stepping only in the specifiedthread; all other threads will be unaffected. A size value of StepRequest.STEP_MIN will generate a step event each time the code index changes. It represents the smallest step size available and often maps to the instruction level. A size value of StepRequest.STEP_LINE will generate a step event each time the source line changes unless line number information is not available, in which case a STEP_MIN will be done instead. For example, no line number information is available during the execution of a method that has been rendered obsolete by by a VirtualMachine.redefineClasses(java.util.Map<? extends com.sun.jdi.ReferenceType, byte[]>) operation. A depth value of StepRequest.STEP_INTO will generate step events in any called methods. A depth value of StepRequest.STEP_OVER restricts step events to the current frame or caller frames. A depth value of StepRequest.STEP_OUT restricts step events to caller frames only. All depth restrictions are relative to the call stack immediately before the step takes place.
Only one pending step request is allowed per thread.
Note that a typical debugger will want to cancel stepping after the first step is detected. Thus a next line method would do the following: 

     EventRequestManager mgr = myVM.{@link VirtualMachine#eventRequestManager eventRequestManager}();  
     StepRequest request = mgr.createStepRequest(myThread,  
                                                 StepRequest.{@link StepRequest#STEP_LINE STEP_LINE},  
                                                 StepRequest.{@link StepRequest#STEP_OVER STEP_OVER});  
     request.{@link EventRequest#addCountFilter addCountFilter}(1);  // next step only  
     request.enable();  
     myVM.{@link VirtualMachine#resume resume}();

Parameters:
thread - the thread in which to step
size - the step size
depth - the step depth
Returns:
the created StepRequest
Throws:
[DuplicateRequestException](DuplicateRequestException.html "class in com.sun.jdi.request") - if there is already a pending step request for the specified thread.
[IllegalArgumentException](../../../../../java.base/java/lang/IllegalArgumentException.html "class in java.lang") - if the size or depth arguments contain illegal values.

Creates a new disabled BreakpointRequest. The given Location must have a valid (that is, non-negative) code index. The new breakpoint is added to the list managed by this EventRequestManager. Multiple breakpoints at the same location are permitted. Use EventRequest.enable() to activate this event request.
Parameters:
location - the location of the new breakpoint.
Returns:
the created BreakpointRequest
Throws:
[NativeMethodException](../NativeMethodException.html "class in com.sun.jdi") - if location is within a native method.

Creates a new disabled watchpoint which watches accesses to the specified field. The new watchpoint is added to the list managed by this EventRequestManager. Multiple watchpoints on the same field are permitted. Use EventRequest.enable() to activate this event request.
Not all target virtual machines support this operation. Use VirtualMachine.canWatchFieldAccess() to determine if the operation is supported.
Parameters:
field - the field to watch
Returns:
the created watchpoint
Throws:
[UnsupportedOperationException](../../../../../java.base/java/lang/UnsupportedOperationException.html "class in java.lang") - if the target virtual machine does not support this operation.

Creates a new disabled watchpoint which watches accesses to the specified field. The new watchpoint is added to the list managed by this EventRequestManager. Multiple watchpoints on the same field are permitted. Use EventRequest.enable() to activate this event request.
Not all target virtual machines support this operation. Use VirtualMachine.canWatchFieldModification() to determine if the operation is supported.
Parameters:
field - the field to watch
Returns:
the created watchpoint
Throws:
[UnsupportedOperationException](../../../../../java.base/java/lang/UnsupportedOperationException.html "class in java.lang") - if the target virtual machine does not support this operation.

Creates a new disabled VMDeathRequest. The new request is added to the list managed by this EventRequestManager. Use EventRequest.enable() to activate this event request.
This request (if enabled) will cause aVMDeathEvent to be sent on termination of the target VM.
A VMDeathRequest with a suspend policy ofSUSPEND_ALL can be used to assure processing of incomingSUSPEND_NONE orSUSPEND_EVENT_THREAD events before VM death. If all event processing is being done in the same thread as event sets are being read, enabling the request is all that is needed since the VM will be suspended until the EventSet containing the VMDeathEvent is resumed.
Not all target virtual machines support this operation. Use VirtualMachine.canRequestVMDeathEvent() to determine if the operation is supported.
Returns:
the created request
Throws:
[UnsupportedOperationException](../../../../../java.base/java/lang/UnsupportedOperationException.html "class in java.lang") - if the target VM does not support this operation.
Since:
1.4

void deleteEventRequest(EventRequest eventRequest)
Removes an eventRequest. The eventRequest is disabled and the removed from the requests managed by this EventRequestManager. Once the eventRequest is deleted, no operations (for example, EventRequest.setEnabled(boolean)) are permitted - attempts to do so will generally cause anInvalidRequestStateException. No other eventRequests are effected.
Because this method changes the underlying lists of event requests, attempting to directly delete from a list returned by a request accessor (e.g. below):
Iterator iter = requestManager.stepRequests().iterator();
while (iter.hasNext()) {
requestManager.deleteEventRequest(iter.next());
}

may cause a ConcurrentModificationException. Instead usedeleteEventRequests(List) or copy the list before iterating.
Parameters:
eventRequest - the eventRequest to remove

void deleteEventRequests(List<? extends EventRequest> eventRequests)
Parameters:
eventRequests - the list of eventRequests to remove
See Also:

void deleteAllBreakpoints()
Remove all breakpoints managed by this EventRequestManager.
See Also:

Return an unmodifiable list of the enabled and disabled step requests. This list is a live view of these requests and thus changes as requests are added and deleted.
Returns:
the all StepRequest objects.

Return an unmodifiable list of the enabled and disabled class prepare requests. This list is a live view of these requests and thus changes as requests are added and deleted.
Returns:
the all ClassPrepareRequest objects.

Return an unmodifiable list of the enabled and disabled class unload requests. This list is a live view of these requests and thus changes as requests are added and deleted.
Returns:
the all ClassUnloadRequest objects.

Return an unmodifiable list of the enabled and disabled thread start requests. This list is a live view of these requests and thus changes as requests are added and deleted.
Returns:
the all ThreadStartRequest objects.

Return an unmodifiable list of the enabled and disabled thread death requests. This list is a live view of these requests and thus changes as requests are added and deleted.
Returns:
the all ThreadDeathRequest objects.

Return an unmodifiable list of the enabled and disabled exception requests. This list is a live view of these requests and thus changes as requests are added and deleted.
Returns:
the all ExceptionRequest objects.

Return an unmodifiable list of the enabled and disabled breakpoint requests. This list is a live view of these requests and thus changes as requests are added and deleted.
Returns:
the list of all BreakpointRequest objects.

Return an unmodifiable list of the enabled and disabled access watchpoint requests. This list is a live view of these requests and thus changes as requests are added and deleted.
Returns:
the all AccessWatchpointRequest objects.

Return an unmodifiable list of the enabled and disabled modification watchpoint requests. This list is a live view of these requests and thus changes as requests are added and deleted.
Returns:
the all ModificationWatchpointRequest objects.

Return an unmodifiable list of the enabled and disabled method entry requests. This list is a live view of these requests and thus changes as requests are added and deleted.
Returns:
the list of all MethodEntryRequest objects.

Return an unmodifiable list of the enabled and disabled method exit requests. This list is a live view of these requests and thus changes as requests are added and deleted.
Returns:
the list of all MethodExitRequest objects.

Return an unmodifiable list of the enabled and disabled monitor contended enter requests. This list is a live view of these requests and thus changes as requests are added and deleted.
Returns:
the list of all MonitorContendedEnterRequest objects.
Since:
1.6

Return an unmodifiable list of the enabled and disabled monitor contended entered requests. This list is a live view of these requests and thus changes as requests are added and deleted.
Returns:
the list of all MonitorContendedEnteredRequest objects.
Since:
1.6

Return an unmodifiable list of the enabled and disabled monitor wait requests. This list is a live view of these requests and thus changes as requests are added and deleted.
Returns:
the list of all MonitorWaitRequest objects.
Since:
1.6

Return an unmodifiable list of the enabled and disabled monitor waited requests. This list is a live view of these requests and thus changes as requests are added and deleted.
Returns:
the list of all MonitorWaitedRequest objects.
Since:
1.6

Return an unmodifiable list of the enabled and disabled VM death requests. This list is a live view of these requests and thus changes as requests are added and deleted. Note: the unsolicited VMDeathEvent does not have a corresponding request.
Returns:
the list of all VMDeathRequest objects.
Since:
1.4