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Why does exist WeakHashMap, but absent WeakSet?

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名媛妹妹
名媛妹妹 2020-12-04 15:29

From J. Bloch

A ... source of memory leaks is listeners ... The best way to ensure that callbacks are garbage collected promptly is to store o

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  • 借酒劲吻你
    借酒劲吻你 (楼主)
    2020-12-04 15:43 

    Set weakHashSet = Collections.newSetFromMap(
        new WeakHashMap());



    As seen in Collections.newSetFromMap documentation, passing a WeakHashMap to get a Set.
    
    
    
             
    
                                                        
    
            
            
    
              
                
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