tree d9c93e2992159de033d0db58507588788b109355
parent 1f5f3e4d42b8dfb8bf741b11c9f39cc8bcd34091
author Sebastian Nagel <snagel@apache.org> 1655291280 +0200
committer Sebastian Nagel <snagel@apache.org> 1660030045 +0200

NUTCH-2936 Early registration of URL stream handlers provided by plugins may fail Hadoop jobs
           running in distributed mode if protocol-okhttp is used
NUTCH-2949 Tasks of a multi-threaded map runner may fail because of slow creation of URL stream handlers

- cache URLStreamHandlers for each protocol to avoid that handlers are
  created anew

- utilize the cache to route standard protocols (http, https, file, jar)
  to handlers implemented by the JVM: this fixes NUTCH-2936