Just use WeakReference directly.
Note that in ant1.7 is parent was changed to extend HardReference.
This is because the latter has access to the (package scoped)
WeakishReference(Object) constructor, and both that and this are thin
facades on the underlying no-longer-abstract base class.
This is a reference that really is is Weak, as it uses the
appropriate java.lang.ref class.
Nested Class Summary
Nested classes/interfaces inherited from class org.apache.tools.ant.util.WeakishReference