docs: public static LicenseProvider createInstance(Content container, String laPrefix) {
          if (container == null) {
              return null;
          }
          Entry laEntry = null;
          try {
              laEntry = SelfExtractUtils.getLicenseFile(container, laPrefix);
          } catch (Exception e) {
              return null;
          }
          String lName = getLicenseName(container, laEntry);
          if (lName == null) {
              return null;
          }
          return new ContentLicenseProvider(laEntry, null, null, lName);
      }