How I can create sequence file in hadoop with API?

Question

I want create sequence file form array list of files address with haddop's API in one machine. Then give this output to sparse-vector and then clustering. For do sparse and clustering, I get code from here. ReutersToSparseVectors and KMeansClustering. In here is code for write sequence file. But, when I give sequence output to sparse, program give error.