code: public static Iterable<String> getPackageClassesNames(String packageName, ClassLoader classLoader) {
  		Iterable<String> entries = readIndexFile(classLoader, packageName.replace(".", "/") + "/" + PACKAGE_INDEX_NAME);
  		List<String> result = new ArrayList<>();
  		for (String simpleName : entries) {
  			result.add(packageName + "." + simpleName);
  		}
  		return result;
  	}
docs: Retrieves names of classes from given package.
  <p/>
  <p>
  The package must be annotated with {@link IndexSubclasses} for the classes inside
  to be indexed at compile-time by {@link org.atteo.classindex.processor.ClassIndexProcessor}.
  </p>
  
  @param packageName name of the package to search classes for
  @param classLoader classloader for loading index file
  @return names of classes from package