@Override
    public String toString() {
      return org.apache.hbase.thirdparty.com.google.common.base.MoreObjects.toStringHelper(this)
        .add("startRow", startRow).add("stopRow", stopRow).toString();
    }
Creates a new instance of this class while copying all values.
@param scan The scan instance to copy from.
@throws java.io.IOException When copying the values fails.
hbase-mapreduce/src/test/java/org/apache/hadoop/hbase/mapreduce/TestMultiTableSnapshotInputFormatImpl.java