[Biojava-l] CrossProductAlphabet

[Emig, Robin]

I have problems creating a cross product alphabet where the size is greater
than 1000 symbols. Now this is the limit where a sparse cross product
alphabet gets created instead of a simplecrossproductalphabet. I keep
getting the exception
No symbol for token 'GGG' found in alphabet (null x null x null). But both
the original alphabet and the crossproduct alphabet do get instantiated.
	I am creating a codon alphabet that includes ambiguities.
-Robin