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According to \[[API 06|AA. Java References#API 06]\] class {{Object}}, method {{hashcode()}} documentation: |
Whenever it is invoked on the same object more than once during an execution of a Java application, the hashCode method must consistently return the same integer, provided no information used in equals comparisons on the object is modified. This integer need not remain consistent from one execution of an application to another execution of the same application.
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