Answers for "class cast exception toArray"

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ClassCastException Casting toArray() method

Collection c = new ArrayList();
Integer obj = new Integer(1);
c.add(obj);

    // this would trigger the rule (and throw a ClassCastException if executed)
Integer[] a = (Integer [])c.toArray();

   // this is fine and will not trigger the rule
Integer[] b = (Integer [])c.toArray(new Integer[c.size()]);

Posted by: Guest on June-22-2021

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