[Tomcat8] What happened to WebappLoader.addRepository()?

[Pilkington, Simon]

Hey tomcat users,

The javadoc for WebappLoader still tells me to use addRepository(), but that 
method no longer exists. My team has implemented an extension of WebappLoader 
that looked like this:

https://tomcat.apache.org/tomcat-7.0-doc/api/org/apache/catalina/loader/WebappLoader.html
https://tomcat.apache.org/tomcat-8.0-doc/api/org/apache/catalina/loader/WebappLoader.html

   @Override
   protected void startInternal() throws LifecycleException {
       // validate the context, which is used for debugging messages
       Context context;
       {
           Container container = getContainer();
           if (container == null) {
               throw new LifecycleException("Container is null?!");
           }
           if (!(container instanceof Context)) {
               throw new LifecycleException("Container is not an instance of 
Context?!");
           }
           context = (Context) container;
       }

       if (ENVIRONMENT_ROOT != null && ENVIRONMENT_ROOT.length() > 0) {
           // validate targetPackage
           if (null == targetPackage) {
               throw new LifecycleException(
                       "Missing required Loader attribute \"targetPackage\" in 
Context configuration " +
                               context.getConfigFile());
           }

           try {
               // Excluded jars are those already pulled in by tomcat.
               Set<String> allExcludedJars = getAllExcludedJars();
               Set<String> reallyExcludedJars = new HashSet<String>();
               // add JARs from target package as "repositories"
               // getPackageClasspath finds the list of jars I want to include 
for this webapp.
               for (String jar : getPackageClasspath(targetPackage)) {
                   File file = new File(ENVIRONMENT_ROOT, jar);
                   // skip bad and unwanted JARs
                   if (allExcludedJars.contains(jar) || isBadJar(file)) {
                       reallyExcludedJars.add(jar);
                   } else {
                       // TODO: HOW TO FIX ME??
                       addRepository(file.toURI().toString());
                   }
               }
               log.info("Context path \"" + context.getPath() + "\" excluding 
JARs: " + reallyExcludedJars);
           } catch (IOException e) {
               throw new LifecycleException(
                       "Problem setting classpath for context path \"" + 
context.getPath() + "\"",
                       e);
           }

           // getRepositoriesString() has been renamed to 
getLoaderRepositoriesString()...
           log.info("Context path \"" + context.getPath() + "\" using 
classpath: " + getRepositoriesString());
       } else {
           log.warning("MyWebappLoader seems to be used outside of my 
environment. Delegating to parent.");
       }

       super.startInternal();
   }

Can the community help me figure out how to upgrade this for tomcat 8?