Method initLibs

solr/core/src/java/org/apache/solr/core/SolrConfig.java:913–937

(SolrResourceLoader loader)

    throw new SolrException(
        SolrException.ErrorCode.SERVER_ERROR, "Multiple plugins configured for type: " + type);
  }

  private void initLibs(SolrResourceLoader loader) {
    // TODO Want to remove SolrResourceLoader.getInstancePath; it can be on a Standalone subclass.
    // For Zk subclass, it's needed for the time being as well.  We could remove that one if we
    // remove "instancePath/lib" in SolrCloud. Can wait till 9.0.
    Path instancePath = loader.getInstancePath();
    List<URL> urls = new ArrayList<>();

    Path libPath = instancePath.resolve("lib");
    if (Files.exists(libPath)) {
      try {
        urls.addAll(SolrResourceLoader.getURLs(libPath));
      } catch (IOException e) {
        log.warn("Couldn't add files from {} to classpath: {}", libPath, e);
      }
    }
    if (!urls.isEmpty()) {
      loader.addToClassLoader(urls);
      loader.reloadLuceneSPI();
    }

    List<ConfigNode> nodes = root.getAll("lib");
    if (nodes != null && nodes.size() > 0) {
      log.warn("<lib/> entries no longer supported in solrconfig.xml; ignoring...");
    }
  }