code: @Deprecated
      public static String getWebJarConfig(Map.Entry<String, String> webJar) {
          String webJarConfig = "";
  
          // read the webJarConfigs
          String filename = WebJarAssetLocator.WEBJARS_PATH_PREFIX + "/" + webJar.getKey() + "/" + webJar.getValue() + "/" + "webjars-requirejs.js";
          InputStream inputStream = RequireJS.class.getClassLoader().getResourceAsStream(filename);
          if (inputStream != null) {
              log.warn("The " + webJar.getKey() + " " + webJar.getValue() + " WebJar is using the legacy RequireJS config.\n" +
                      "Please try a new version of the WebJar or file or file an issue at:\n" +
                      "http://github.com/webjars/" + webJar.getKey() + "/issues/new");
  
              StringBuilder webJarConfigBuilder = new StringBuilder("// WebJar config for " + webJar.getKey() + "\n");
              BufferedReader br = new BufferedReader(new InputStreamReader(inputStream));
              try {
                  String line;
  
                  while ((line = br.readLine()) != null) {
                      webJarConfigBuilder.append(line).append("\n");
                  }
  
                  webJarConfig = webJarConfigBuilder.toString();
              } catch (IOException e) {
                  log.warn(filename + " could not be read.");
              } finally {
                  try {
                      br.close();
                  } catch (IOException e) {
                      // really?
                  }
              }
          }
  
          return webJarConfig;
      }
docs: The legacy webJars-requirejs.js based RequireJS config for a WebJar.
  
  @param webJar A tuple (artifactId -&gt; version) representing the WebJar.
  @return The contents of the webJars-requirejs.js file.