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  1. Application Server 3 4 5 and 6
  2. JBAS-2973

ConcurrentReaderHashMap iterators returning null

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      Although Concurrent[Reader]HashMap cannot contain null values,
      iterators over the entrySet() can return null if the entry is removed during iteration.

      See this example from the forums:

      Map m = new ConcurrentHashMap();
      m.put("foo", "bar");
      Iterator i = m.entrySet().iterator();
      Map.Entry me = (Map.Entry) i.next();
      m.removeKey("foo");
      me.getValue(); // returns null

      Any code doing this, needs to be checked for NPEs.

              Unassigned Unassigned
              adrian.brock Adrian Brock (Inactive)
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                Created:
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