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Interface ClassObjectReference

All Superinterfaces:
Mirror, ObjectReference, Value
public interface ClassObjectReference extends ObjectReference
An instance of java.lang.Class from the target VM. Use this interface to access type information for the class, array, or interface that this object reflects.
Since:
1.3
See Also:
  • ReferenceType

Field Summary

Fields declared in interface ObjectReference

INVOKE_NONVIRTUAL, INVOKE_SINGLE_THREADED
Modifier and Type Field Description
static final int INVOKE_NONVIRTUAL
Perform non-virtual method invocation
static final int INVOKE_SINGLE_THREADED
Perform method invocation with only the invoking thread resumed

Method Summary

Modifier and Type Method Description
ReferenceType reflectedType()
Returns the ReferenceType corresponding to this class object.

Methods declared in interface Mirror

toString, virtualMachine
Modifier and Type Method Description
String toString()
Returns a String describing this mirror
VirtualMachine virtualMachine()
Gets the VirtualMachine to which this Mirror belongs.

Methods declared in interface ObjectReference

disableCollection, enableCollection, entryCount, equals, getValue, getValues, hashCode, invokeMethod, isCollected, owningThread, referenceType, referringObjects, setValue, uniqueID, waitingThreads
Modifier and Type Method Description
void disableCollection()
Prevents garbage collection for this object.
void enableCollection()
Permits garbage collection for this object.
int entryCount()
Returns the number of times this object's monitor has been entered by the current owning thread if the owning thread is platform thread; Returns 0 if not owned by a platform thread.
boolean equals(Object obj)
Compares the specified Object with this ObjectReference for equality.
Value getValue(Field sig)
Gets the value of a given instance or static field in this object.
Map<Field,Value> getValues(List<? extends Field> fields)
Gets the value of multiple instance and/or static fields in this object.
int hashCode()
Returns the hash code value for this ObjectReference.
Value invokeMethod(ThreadReference thread, Method method, List<? extends Value> arguments, int options)
Invokes the specified Method on this object in the target VM.
boolean isCollected()
Determines if this object has been garbage collected in the target VM.
ThreadReference owningThread()
Returns a ThreadReference for the platform thread, if any, which currently owns this object's monitor.
ReferenceType referenceType()
Gets the ReferenceType that mirrors the type of this object.
List<ObjectReference> referringObjects(long maxReferrers)
Returns objects that directly reference this object.
void setValue(Field field, Value value)
Sets the value of a given instance or static field in this object.
long uniqueID()
Returns a unique identifier for this ObjectReference.
List<ThreadReference> waitingThreads()
Returns a List containing a ThreadReference for each platform thread currently waiting for this object's monitor.

Methods declared in interface Value

type
Modifier and Type Method Description
Type type()
Returns the run-time type of this value.

Method Details

reflectedType

ReferenceType reflectedType()
Returns the ReferenceType corresponding to this class object. The returned type can be used to obtain detailed information about the class.
Returns:
the ReferenceType reflected by this class object.

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Documentation extracted from Debian's OpenJDK Development Kit package.
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