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Alex Rivera
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In Java, is there a semantic difference between using " Illegal " (as in IllegalArgumentException ) versus " Invalid " (as in javax.activity.InvalidActivityException )? During the course of an assignment it became useful to write a subclass of IllegalArgumentException to represent a series of input characters that cannot be tokenized, and I'm wondering whether convention says to use InvalidTokenException or IllegalTokenException . The only difference I can find so far is that java.lang seems to prefer "Illegal" while javax.* prefers "Invalid". However, there is also java.security.InvalidParameterException which is a subclass of IllegalArgumentException .
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