Chick Corea wrote:
> What is wrong with this code?  I want to instantiate a Java String
> from a Java character-array.
> But I want it to be fast, hence the need to cast per the "warn on
> reflection" message.
> 
>     user=> (set! *warn-on-reflection* true)
>     true
>     user=>  (new String #^"[C" (make-array Character/TYPE 3 \a ))
>     java.lang.ClassCastException: [[C cannot be cast to [C
> (NO_SOURCE_FILE:0)

Note the exception, "[[C" means a two-dimensional arary.  (make-array 
Character/TYPE 3 \a) actually means (make-array Character/TYPE 3 97) so 
a 3 by 97 two-dimensional array (new char[3][97] in java syntax).  What 
you probably want is:

user> (String. #^"[C" (into-array Character/TYPE (repeat 3 \a)))
"aaa"

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