public E load(Path path, String className, int priority, Configuration conf) throws IOException {
    String[] includedClassPrefixes = null;
    if (conf.get(HConstants.CP_HTD_ATTR_INCLUSION_KEY) != null) {
      String prefixes = conf.get(HConstants.CP_HTD_ATTR_INCLUSION_KEY);
      includedClassPrefixes = prefixes.split(";");
    }
    return load(path, className, priority, conf, includedClassPrefixes);
  }
Load a coprocessor implementation into the host
@param path      path to implementation jar
@param className the main class name
@param priority  chaining priority
@param conf      configuration for coprocessor
@throws java.io.IOException Exception
hbase-server/src/main/java/org/apache/hadoop/hbase/coprocessor/CoprocessorHost.java