code: protected ClassLoader getClassLoader() {
          ClassLoader loader = null;
          Package pkg = PackageCache.getProcessPackage(getProcessId());
          if (pkg != null) {
              loader = pkg.getCloudClassLoader();
          }
          if (loader == null) {
              loader = getClass().getClassLoader();
          }
          return loader;
      }
docs: Get the class loader based on package bundle version spec
  default is mdw-workflow loader
  @return