How to free memory using Java Unsafe, using a Java reference? -



How to free memory using Java Unsafe, using a Java reference? -

java unsafe class allows allocate memory object follows, using method how free memory allocated when finished, not provide memory address...

field f = unsafe.class.getdeclaredfield("theunsafe"); //internal reference f.setaccessible(true); unsafe unsafe = (unsafe) f.get(null); //this creates instance of player class without initialization player p = (player) unsafe.allocateinstance(player.class);

is there way of accessing memory address object reference, maybe integer returned default hashcode implementation work, do...

unsafe.freememory(p.hashcode());

doesn't seem right how...

"memory address" of object reference not create sense since objects can move across java heap. you cannot explicitly free space allocated unsafe.allocateinstance, because space belongs java heap, , garbage collector can free it. if want own memory management outside java heap, may utilize unsafe.allocatememory / unsafe.freememory methods. deal raw memory addresses represented long. memory not java objects.

java memory-management jvm directmemory

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