[Refactor] buildSrc/java from legacy to opensearch namespace (#6)

Refactors legacy naming to opensearch in the remaining buildSrc java
directories.

Signed-off-by: Nicholas Walter Knize <nknize@apache.org>

.ci/java-versions.properties

@@ -1,3 +1,14 @@
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+# The OpenSearch Contributors require contributions made to
+# this file be licensed under the Apache-2.0 license or a
+# compatible open source license.
+#
+# Modifications Copyright OpenSearch Contributors. See
+# GitHub history for details.
+#
+
 # This file is used with all of the non-matrix tests in Jenkins,
 # and is based on how the Elasticsearch project configures java
 # versions.
@@ -7,4 +18,4 @@
 # are 'java' or 'openjdk' followed by the major release number.
 
 ESH_BUILD_JAVA=openjdk17
-ESH_RUNTIME_JAVA=openjdk17
+ESH_RUNTIME_JAVA=openjdk17

.github/CONTRIBUTING.md

@@ -42,4 +42,4 @@ Then sit back and wait. There will probably be discussion about the pull request
 [contributing guidelines]: http://www.elasticsearch.org/contributing-to-elasticsearch/
 [Contributor License Agreement]: http://www.elasticsearch.org/contributor-agreement/
 [submit a pull request]: http://help.github.com/articles/using-pull-requests
-[find or open an issue]: http://github.com/elasticsearch/elasticsearch-hadoop/issues
+[find or open an issue]: http://github.com/opensearch-project/opensearch-hadoop/issues

README.md

@@ -25,7 +25,7 @@ Available through any Maven-compatible tool:
 ```xml
 <dependency>
   <groupId>org.elasticsearch</groupId>
-  <artifactId>elasticsearch-hadoop</artifactId>
+  <artifactId>opensearch-hadoop</artifactId>
   <version>8.4.0</version>
 </dependency>
 ```
@@ -37,7 +37,7 @@ Grab the latest nightly build from the [repository](http://oss.sonatype.org/cont
 ```xml
 <dependency>
   <groupId>org.elasticsearch</groupId>
-  <artifactId>elasticsearch-hadoop</artifactId>
+  <artifactId>opensearch-hadoop</artifactId>
   <version>8.6.0-SNAPSHOT</version>
 </dependency>
 ```
@@ -379,4 +379,4 @@ under the License.
 [Apache License]: http://www.apache.org/licenses/LICENSE-2.0
 [Gradle]: http://www.gradle.org/
 [REST]: http://www.elastic.co/guide/en/elasticsearch/reference/current/api-conventions.html
-[DistributedCache]: http://hadoop.apache.org/docs/stable/api/org/apache/hadoop/filecache/DistributedCache.html
+[DistributedCache]: http://hadoop.apache.org/docs/stable/api/org/apache/hadoop/filecache/DistributedCache.html