[jira] [Created] (COLLECTIONS-599) HashEntry array object naming data initialized with double the size during deserialization

[Tejas Patel (JIRA)]

Tejas Patel created COLLECTIONS-599:
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             Summary: HashEntry array object naming data initialized with 
double the size during deserialization
                 Key: COLLECTIONS-599
                 URL: https://issues.apache.org/jira/browse/COLLECTIONS-599
             Project: Commons Collections
          Issue Type: Bug
          Components: Collection, Map
    Affects Versions: 3.1
            Reporter: Tejas Patel
            Priority: Critical
             Fix For: 4.1


Common collections 3.1 and 3.2 are used at many places and frameworks including 
struts2. 
Supose a LinkedMap object it is created and have size greater than zero is 
serialized. While deserializing this object , array of HashEntry naming data 
delacred in AbstractHashedMap always initialises with a new capacity of double 
its double of the serialized object. 

Please see the below API declared in AbstractHashedMap class :

protected void checkCapacity()
  {
    if (this.size >= this.threshold)
    {
      int newCapacity = this.data.length * 2;
      if (newCapacity <= 1073741824) {
        ensureCapacity(newCapacity);
      }
    }
  }



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