assertEquals(3, pluginGroups.size());
        assertEquals("org.apache.maven.plugins", pluginGroups.get(0));
        assertEquals("org.codehaus.modello", pluginGroups.get(1));
        assertEquals("org.codehaus.plexus", pluginGroups.get(2));
    }

    @Test
    void testRoundTripProfiles() {
        Random entropy = new Random();
        ActivationFile af = ActivationFile.newBuilder()

specific language governing permissions and limitations
under the License.
-->

<settings xmlns='http://maven.apache.org/SETTINGS/1.0.0'>
  <pluginGroups>
    <pluginGroup>org.codehaus.tycho</pluginGroup>
    <pluginGroup>org.sonatype.pwt</pluginGroup>
  </pluginGroups>

    }

    @Override
    public List<String> getPluginGroups() {
        return pluginGroups;
    }

    @Override
    public DefaultPluginPrefixRequest setPluginGroups(List<String> pluginGroups) {
        if (pluginGroups != null) {
            this.pluginGroups = Collections.unmodifiableList(pluginGroups);
        } else {
            this.pluginGroups = Collections.emptyList();
        }

        return this;
    }

    public NoPluginFoundForPrefixException(
            String prefix,
            List<String> pluginGroups,
            LocalRepository localRepository,
            List<RemoteRepository> remoteRepositories) {
        super("No plugin found for prefix '" + prefix + "' in the current project and in the plugin groups "
                + pluginGroups + " available from the repositories " + format(localRepository, remoteRepositories));
    }

    /**
     * Sets the list of group ids to scan for the plugin prefix.
     *
     * @param pluginGroups The list of group ids to scan for the plugin prefix, may be {@code null}.
     * @return This request, never {@code null}.
     */
    PluginPrefixRequest setPluginGroups(List<String> pluginGroups);

    /**
     * Gets the POM whose build plugins are to be scanned for the prefix.
     *