@Parameters(name = "{index}: registry={0}, numHedgedReqs={1}")
  public static List<Object[]> parameters() {
    return Arrays.asList(new Object[] { MasterRegistry.class, 1 },
      new Object[] { ZKConnectionRegistry.class, 1 });
  }
Test all client operations with a coprocessor that just implements the default flush/compact/scan
policy.
hbase-server/src/test/java/org/apache/hadoop/hbase/client/TestFromClientSideWithCoprocessor5.java