docs: protected String getSerializationPolicyPath(String moduleBaseURL, String strongName) {
  
          // locate the serialization policy file in OpenCms
          String modulePath = null;
          try {
              modulePath = new URL(moduleBaseURL).getPath();
          } catch (MalformedURLException ex) {
              // moduleBaseUrl is bad
              LOG.error(ex.getLocalizedMessage(), ex);
              return null;
          } catch (NullPointerException ex) {
              // moduleBaseUrl is null
              LOG.error(ex.getLocalizedMessage(), ex);
              return null;
          }
          return SerializationPolicyLoader.getSerializationPolicyFileName(modulePath + strongName);
      }