+import htsjdk.samtools.SAMException;
+import htsjdk.samtools.SAMSequenceDictionary;
+import htsjdk.samtools.SAMSequenceRecord;
+import htsjdk.samtools.reference.FastaSequenceIndexCreator;
+import htsjdk.samtools.reference.ReferenceSequence;
+import htsjdk.samtools.reference.ReferenceSequenceFile;
+import htsjdk.samtools.reference.ReferenceSequenceFileFactory;
+import htsjdk.samtools.util.StringUtil;
+