* zero bytes (3 ints), while the byteTable is for advancing one byte at a time.
     * This algorithm is due to the paper "Everything we know about CRC but [are] afraid to forget"
     * by Kadatch and Jenkins, 2010.
     */

    Crc32cHasher() {
      super(16);
    }

    private boolean finished = false;

    /*

// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Affero General Public License for more details.
//

// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Affero General Public License for more details.
//

// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Affero General Public License for more details.
//

// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Affero General Public License for more details.
//

    update_tracking_file,
    install_command,
    install_command_retries,
    extra
  )
end

# Sets up a consistent prompt for all users. Or tries to. The VM might
# contain overrides for root and vagrant but this attempts to work around
# them by re-source-ing the standard prompt file.
def sh_set_prompt(config, name)
  config.vm.provision 'set prompt', type: 'shell', inline: <<-SHELL

        // cancellation can interleave in 3 ways
        // 1. prior to setFuture
        // 2. after setFuture before set() on the future assigned
        // 3. after setFuture and set() are called but before the listener completes.
        if (!setFutureSetSuccess.get() || !setFutureCompletionSuccess.get()) {
          // If setFuture fails or set on the future fails then it must be because that future was
          // cancelled

                        .setMessage("Invalid packaging for parent POM " + ModelProblemUtils.toSourceHint(parentModel)
                                + ", must be \"pom\" but is \"" + parentModel.getPackaging() + "\"")
                        .setLocation(parentModel.getLocation("packaging")));
            }
        } else {
            parentData = null;
        }

// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Affero General Public License for more details.
//

      this.delegate = delegate;
      this.ancestor = ancestor;
      this.ancestorDelegate = (ancestor == null) ? null : ancestor.getDelegate();
    }

    /**
     * If the delegate collection is empty, but the multimap has values for the key, replace the
     * delegate with the new collection for the key.
     *
     * <p>For a subcollection, refresh its ancestor and validate that the ancestor delegate hasn't
     * changed.