public ArtifactRepositoryLayout getLayout() {
        return layout;
    }

    public void setSnapshotUpdatePolicy(ArtifactRepositoryPolicy snapshots) {
        this.snapshots = snapshots;
    }

    public ArtifactRepositoryPolicy getSnapshots() {
        return snapshots;
    }

    public void setReleaseUpdatePolicy(ArtifactRepositoryPolicy releases) {
        this.releases = releases;
    }

    <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>

    <repository>
      <releases>
        <enabled>false</enabled>
      </releases>
      <id>snapshots</id>
      <name>Maven Snapshot Development Repository</name>
      <url>http://snapshots.maven.codehaus.org/maven2</url>
    </repository>
    <repository>
      <snapshots>
        <enabled>false</enabled>
      </snapshots>
      <id>central</id>
      <name>Maven Repository Switchboard</name>

import org.eclipse.aether.util.ConfigUtils;

/**
 * Maven local GAV level metadata generator.
 * <p>
 * Local snapshot metadata contains non-transformed snapshot version.
 */
class LocalSnapshotMetadataGenerator implements MetadataGenerator {

    private final Map<Object, LocalSnapshotMetadata> snapshots;

    private final Date timestamp;

        if (snapshots == null) {
            snapshots = new ArtifactRepositoryPolicy(
                    true,
                    ArtifactRepositoryPolicy.UPDATE_POLICY_ALWAYS,
                    ArtifactRepositoryPolicy.CHECKSUM_POLICY_IGNORE);
        }

        this.snapshots = snapshots;

        if (releases == null) {
            releases = new ArtifactRepositoryPolicy(
                    true,

    <repository>
      <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>

        <enabled>false</enabled>
      </releases>
      <id>snapshots</id>
      <name>Maven Central Development Repository</name>
      <url>http://snapshots.maven.codehaus.org/maven2</url>
    </repository>
  </repositories>
  <pluginRepositories>
    <pluginRepository>
      <releases>
        <enabled>false</enabled>
      </releases>
      <id>snapshots</id>
      <name>Maven Central Plugins Development Repository</name>

                RemoteSnapshotMetadata snapshotMetadata = snapshots.get(key);
                if (snapshotMetadata == null) {
                    snapshotMetadata = new RemoteSnapshotMetadata(artifact, timestamp, buildNumber);
                    snapshots.put(key, snapshotMetadata);
                }
                snapshotMetadata.bind(artifact);
            }
        }

        return snapshots.values();
    }

    @Override

rg/repos/asf/maven/components/tags maven-clean-plugin 2.0-rc2-SNAPSHOT maven-compiler-plugin 2.0-beta-2-SNAPSHOT maven-deploy-plugin 2.0-beta-1 true true maven-install-plugin 2.0-beta-2-SNAPSHOT maven-jar-plugin 2.0-rc2-SNAPSHOT maven-javadoc-plugin 2.0-beta-2-SNAPSHOT attach-javadocs jar true maven-resources-plugin 2.0-beta-2 maven-source-plugin 2.0-rc1 attach-sources jar true maven-surefire-plugin 2.0-beta-2-SNAPSHOT false snapshots Maven Central Development Repository http://snapshots.maven.codehaus.org/maven2...

            ArtifactRepositoryPolicy snapshots,
            ArtifactRepositoryPolicy releases) {
        if (snapshots == null) {
            snapshots = new ArtifactRepositoryPolicy();
        }

        if (releases == null) {
            releases = new ArtifactRepositoryPolicy();
        }

        if (globalUpdatePolicy != null) {
            snapshots.setUpdatePolicy(globalUpdatePolicy);