<idea-plugin>
  <extensions defaultExtensionNs="com.intellij">
    <statistics.usagesCollector implementation="com.intellij.internal.statistic.libraryJar.LibraryJarUsagesCollector"/>
    <postStartupActivity implementation="com.intellij.internal.statistic.libraryJar.LibraryJarStatisticsService"/>
  </extensions>
</idea-plugin>