@Override
  public void createTable(TableDescriptor desc, byte[] startKey, byte[] endKey, int numRegions)
    throws IOException {
    get(admin.createTable(desc, startKey, endKey, numRegions));
  }
The {@link Admin} implementation which is based on an {@link AsyncAdmin}.
hbase-client/src/main/java/org/apache/hadoop/hbase/client/AdminOverAsyncAdmin.java