private Collection<Function<?>> loadFunctionFromClassName(String className)
      throws ClassNotFoundException {
    Class<?> clazz = ClassPathLoader.getLatest().forName(className);
    return getRegisterableFunctionsFromClass(clazz);
  }
Scan the JAR file and attempt to register any function classes found.

@param jarFile The {@link File} that contains {@link Function} that are to be registered
geode-core/src/main/java/org/apache/geode/cache/internal/execute/FunctionToFileTracker.java