com.oracle.svm.core.heap

Class Target_java_lang_ref_Reference<T>

java.lang.Object

com.oracle.svm.core.heap.Target_java_lang_ref_Reference<T>

public final class Target_java_lang_ref_Reference<T>
extends Object

Substitution of Reference, which is the abstract base class of all non-strong reference classes, the basis of the cleaner mechanism, and subject to special treatment by the garbage collector.

Implementation methods are in the separate class ReferenceInternals because Reference can be subclassed and subclasses could otherwise inadvertently override injected methods by declaring methods with identical names and signatures.

This class serves three purposes:

• It has a reference to an object, which is excluded from the reference map. If the object is not otherwise strongly reachable, the garbage collector can choose to reclaim it and will then set our reference (and possibly others) to null.
• It has linkage to become part of a linked list of reference objects that are discovered during garbage collection, when allocation is restricted, or become part of a linked list of reference objects which are pending to be added to a reference queue.
• It has linkage to optionally become part of a linked reference queue, which is used to clean up resources associated with reclaimed objects.

Method Summary

Modifier and Type	Method and Description
protected Object	clone()

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

clone

protected Object clone()
                throws CloneNotSupportedException

Overrides:

clone in class Object

Throws:

CloneNotSupportedException