private void closeTable(Table table) throws IOError {
    try {
      if (table != null) {
        table.close();
      }
    } catch (IOException e) {
      LOG.error(e.getMessage(), e);
      throw getIOError(e);
    }
  }
Note: this internal interface is slightly different from public APIs in regard to handling of
the qualifier. Here we differ from the public Java API in that null != byte[0]. Rather, we
respect qual == null as a request for the entire column family. The caller (
{@link #getVerTs(ByteBuffer, ByteBuffer, ByteBuffer, long, int, Map)}) interface IS consistent
in that the column is parse like normal.
hbase-thrift/src/main/java/org/apache/hadoop/hbase/thrift/ThriftHBaseServiceHandler.java