public int loadTable(final Table t, final byte[][] f) throws IOException {
    return loadTable(t, f, null);
  }
Load table of multiple column families with rows from 'aaa' to 'zzz'.
@param t Table
@param f Array of Families to load
@return Count of rows loaded.
hbase-server/src/test/java/org/apache/hadoop/hbase/HBaseTestingUtil.java