Solr has become a top-level Apache project and main line 
development for Lucene and Solr is happening in each 
project's git repository now:

- Lucene: <https://gitbox.apache.org/repos/asf/lucene.git>
- Solr: <https://gitbox.apache.org/repos/asf/solr.git>

If you're seeing this message then switch the development to 'main':
git checkout main

Development for branch 8x remains in the shared repository:

find the dependencies of a plugin whether that be from a workspace of an IDE, a local Maven repository, or a remote Maven repository. During development in an IDE we would need layered resolution approach that would allow resolution from the workspace, then the local Maven repository and then from any number of remote Maven repositories. During development from the command line we would need a layered resolution approach that would allow resolution from the local Maven repository and then from any...

  <name>Maven</name>
  <version>2.0</version>
  <description>Maven is a project development management and comprehension tool. Based on the concept of a project object model: builds, dependency management, documentation creation, site publication, and distribution publication are all controlled from the declarative file. Maven can be extended by plugins to utilise a number of other development tools for reporting or the build process.</description>

    <snapshotRepository>
      <id>snapshots</id>
      <name>Maven Central Development Repository</name>
      <url>scp://repo1.maven.org/home/projects/maven/repository-staging/snapshots/maven2</url>
    </snapshotRepository>
  </distributionManagement>
  <repositories>
    <repository>
      <id>snapshots</id>
      <name>Maven Snapshot Development Repository</name>
      <url>http://snapshots.maven.codehaus.org/maven2</url>

  <description>
    The Apache Software Foundation provides support for the Apache community of open-source software projects.
    The Apache projects are characterized by a collaborative, consensus based development process, an open and
    pragmatic software license, and a desire to create high quality software that leads the way in its field.

      <id>codehaus-snapshots</id>
      <name>Codehaus Snapshot Development Repository</name>
      <url>http://snapshots.repository.codehaus.org</url>
      <releases>
        <enabled>false</enabled>
      </releases>
    </repository>
  </repositories>
  <pluginRepositories>
    <pluginRepository>
      <id>codehaus-snapshots</id>
      <name>Codehaus Snapshot Development Repository</name>

      <id>codehaus-snapshots</id>
      <name>Codehaus Snapshot Development Repository</name>
      <url>http://snapshots.repository.codehaus.org</url>
      <releases>
        <enabled>false</enabled>
      </releases>
    </repository>
  </repositories>
  <pluginRepositories>
    <pluginRepository>
      <id>codehaus-snapshots</id>
      <name>Codehaus Snapshot Development Repository</name>

# -----------------------------------------------------------------------------
# Apache Maven YourKit Profiler Startup Script
#
# Environment Variable Prerequisites
#
#   JAVA_HOME       Must point at your Java Development Kit installation.
#   MAVEN_OPTS      (Optional) Java runtime options used when Maven is executed.
#   MAVEN_SKIP_RC   (Optional) Flag to disable loading of mavenrc files.

      <name>Plexus Central Repository</name>
      <url>dav:https://dav.codehaus.org/repository/plexus</url>
    </repository>
    <snapshotRepository>
      <id>codehaus.org</id>
      <name>Plexus Central Development Repository</name>
      <url>dav:https://dav.codehaus.org/snapshots.repository/plexus</url>
    </snapshotRepository>
    <site>
      <id>codehaus.org</id>
      <url>dav:https://dav.codehaus.org/plexus</url>

      <name>Plexus Central Repository</name>
      <url>dav:https://dav.codehaus.org/repository/plexus</url>
    </repository>
    <snapshotRepository>
      <id>codehaus.org</id>
      <name>Plexus Central Development Repository</name>
      <url>dav:https://dav.codehaus.org/snapshots.repository/plexus</url>
    </snapshotRepository>
    <site>
      <id>codehaus.org</id>
      <url>dav:https://dav.codehaus.org/plexus</url>