I prefer OpenCSV for CSV parsing in Java.  That library also supports parsing of tab delimited files, here's how:

Just a quick gist:

import au.com.bytecode.opencsv.CSVReader;

public class LoadTest {

    @Test
    public void testLoad(String row) throws IOException, JobNotFoundException, InterruptedException {
        CSVReader reader = new CSVReader(new FileReader("/Users/bone/Desktop/foo_data.tab"), '\t');
        String[] record;
        while ((record = reader.readNext()) != null) {
            for (String value : record) {
                System.out.println(value); // Debug only
            }
        }
    }
}