jinterface: can't use 0-length tuples

[Vlad Dumitrescu]

Hi!

In jinterface 1.3 tuples with zero length can't be created or used. Unless there's a reason for that, I think they should be supported just like in Erlang :-)

The fix is very simple:

    public OtpErlangTuple(OtpErlangObject[] elems, int start, int count)
    {
-        if ((elems == null) || (count < 1))
+        if (elems == null)
        {
            throw new java.lang.IllegalArgumentException("Cannot make an empty tuple");

best regards,
Vlad
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