clone - Java: Rationale of the Cloneable interface -

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why wasn't .clone() method specified in java.lang.cloneable interface ?

basically, it's broken interface. ken arnold , bill venners discussed in java design issues.

arnold:

if god @ point, , many people glad not, deprecate cloneable , have copyable, because cloneable has problems. besides fact it's misspelled, cloneable doesn't contain clone method. means can't test if instance of cloneable, cast cloneable, , invoke clone. have use reflection again, awful. 1 problem, 1 i'd solve.


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