presto-main/src/main/java/io/prestosql/server/PluginManager.java/PluginManager/installPlugin
class PluginManager:    public void installPlugin(Plugin plugin, Supplier<ClassLoader> duplicatePluginClassLoaderFactory)
    {
        installPluginInternal(plugin, duplicatePluginClassLoaderFactory);
        metadataManager.verifyComparableOrderableContract();
    }