@Override
  public Future<Boolean> abortProcedureAsync(long procId, boolean mayInterruptIfRunning)
    throws IOException {
    return admin.abortProcedure(procId, mayInterruptIfRunning);
  }
The {@link Admin} implementation which is based on an {@link AsyncAdmin}.
hbase-client/src/main/java/org/apache/hadoop/hbase/client/AdminOverAsyncAdmin.java