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| Reports subtraction in | |
| <b>compareTo()</b> methods and methods implementing <b>java.util.Comparator.compare()</b>. While it is a common idiom to | |
| use the results of integer subtraction as the result of a <b>compareTo()</b> | |
| method, this construct may cause subtle and difficult bugs in cases of integer overflow. | |
| Comparing the integer values directly and returning -1, 0, or 1 is better practice in almost | |
| all cases. | |
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