Is there any way to find all references to an object (in Java)?
I have a cache of objects, and would like to periodically scan it to see if removing the object will cause it to be destroyed.
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Is there any way to find all references to an object (in Java)?
I have a cache of objects, and would like to periodically scan it to see if removing the object will cause it to be destroyed.
You might want to take a look at different reference types Java provides: strong, soft, weak, and phantom.
For cache you would normally wrap a reference into WeakReference or SoftReference and let the object be collected once there are no more strong references left.