1. Upgrade OpenSearch dependency in src/plugin/indexer-opensearch-1x/ivy.xml

2. Upgrade the OpenSearch specific dependencies in src/plugin/indexer-opensearch-1x/plugin.xml To get the list of dependencies and their versions execute: $ cd src/plugin/indexer-opensearch-1x/ $ ant -f ./build-ivy.xml $ ls lib | sed ‘s/^/ <library name="/g’ | sed ‘s/$/"/>/g’

   In the plugin.xml replace all lines between

   and

   with the output of the command above.

3. (Optionally) remove overlapping dependencies between indexer-opensearch-1x and Nutch core dependencies:

   • check for libs present both in build/lib and build/plugins/indexer-opensearch-1x/ (eventually with different versions)
   • duplicated libs can be added to the exclusions of transitive dependencies in build/plugins/indexer-opensearch-1x/ivy.xml
   • but it should be made sure that the library versions in ivy/ivy.xml correspend to those required by Tika

4. Remove the locally “installed” dependencies in src/plugin/indexer-opensearch-1x/lib/:

   $ rm -rf lib/

5. Build Nutch and run all unit tests:

   $ cd ../../../ $ ant clean runtime test