java.lang.ClassCastException: MyClass cannot be cast to java.lang.Comparable

Posted by chuck on Stack Overflow See other posts from Stack Overflow or by chuck
Published on 2010-03-24T01:32:46Z Indexed on 2010/03/24 1:33 UTC
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classcastexception

List myclassList = (List) rs.get();

TreeSet<MyClass> myclassSet = new TreeSet<MyClass>(myclassList);

I don't understand why this code generates this:

java.lang.ClassCastException: MyClass cannot be cast to java.lang.Comparable

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