@Deprecated
  default void preReplicateLogEntries(final ObserverContext<RegionServerCoprocessorEnvironment> ctx)
    throws IOException {
  }
This will be called before executing replication request to shipping log entries.
@param ctx the environment to interact with the framework and region server.
@deprecated As of release 2.0.0 with out any replacement, plan to remove in 4.0.0. This is
            maintained for internal usage by AccessController. Do not use these hooks in custom
            co-processors.
hbase-server/src/main/java/org/apache/hadoop/hbase/coprocessor/RegionServerObserver.java