public Path getSourceFileListing() {
    return sourceFileListing;
  }
@Test
  public void testSourceListing() {
    final DistCpOptions.Builder builder = new DistCpOptions.Builder(
        new Path("hdfs://localhost:8020/source/first"),
        new Path("hdfs://localhost:8020/target/"));
    Assert.assertEquals(new Path("hdfs://localhost:8020/source/first"),
        builder.build().getSourceFileListing());
  }