Examples of java.util.WeakHashMap.containsKey()

java.util.WeakHashMap.containsKey()
Returns true if this map contains a mapping for the specified key. @param key The key whose presence in this map is to be tested @return true if there is a mapping for key;false otherwise

        };
        lib.callVoidCallback(cb);
        assertTrue("Callback not called", called[0]);
        
        Map refs = new WeakHashMap(callbackCache());
        assertTrue("Callback not cached", refs.containsKey(cb));
        CallbackReference ref = (CallbackReference)refs.get(cb);
        refs = callbackCache();
        Pointer cbstruct = ref.cbstruct;
        
        cb = null;

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        assertNotNull("GetModuleHandle(\"jnidispatch\") failed: " + Native.getLastError(), handle);
        assertEquals("Wrong module HANDLE for DLL function pointer", handle, pref.getValue());


        // Check slot re-use
        Map refs = new WeakHashMap(callbackCache());
        assertTrue("Callback not cached", refs.containsKey(cb));
        CallbackReference ref = (CallbackReference)refs.get(cb);
        refs = callbackCache();
        Pointer cbstruct = ref.cbstruct;
        Pointer first_fptr = cbstruct.getPointer(0);

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        lib.callVoidCallback(cb);
        assertTrue("Callback not called", called[0]);
        
        Map refs = new WeakHashMap(CallbackReference.callbackMap);
        refs.putAll(CallbackReference.directCallbackMap);
        assertTrue("Callback not cached", refs.containsKey(cb));
        CallbackReference ref = (CallbackReference)refs.get(cb);
        refs = ref.proxy != null ? CallbackReference.callbackMap
            : CallbackReference.directCallbackMap;
        Pointer cbstruct = ref.cbstruct;

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      WeakHashMap map = (WeakHashMap) sessions.get( this.getName() );
      if ( map == null )  {
        map = new WeakHashMap();
        sessions.put( this.getName(), map);
      }
      if ( !map.containsKey(session) ) map.put(session, null);
    }


    /** 
     * Remove all of this Service's serviceObjects from it known sessions
     */

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        lib.callVoidCallback(cb);
        assertTrue("Callback not called", called[0]);
        
        Map refs = new WeakHashMap(CallbackReference.callbackMap);
        refs.putAll(CallbackReference.directCallbackMap);
        assertTrue("Callback not cached", refs.containsKey(cb));
        CallbackReference ref = (CallbackReference)refs.get(cb);
        refs = ref.proxy != null ? CallbackReference.callbackMap
            : CallbackReference.directCallbackMap;
        Pointer cbstruct = ref.cbstruct;

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