docs: public static Map<String, String> processArchiveManifest(final JarFile jarFile) throws Throwable {
          Map<String, String> manifestAttrs = null;
  
          if (jarFile != null) {
              try {
                  manifestAttrs = AccessController.doPrivileged(new PrivilegedExceptionAction<Map<String, String>>() {
                      @Override
                      public Map<String, String> run() throws ZipException, IOException {
                          InputStream is = null;
                          Map<String, String> attrs = null;
                          try {
                              // Read the manifest and access the manifest headers.
                              is = jarFile.getInputStream(jarFile.getEntry(JarFile.MANIFEST_NAME));
                              attrs = ManifestProcessor.readManifestIntoMap(ManifestProcessor.parseManifest(is));
                          } finally {
                              if (is != null) {
                                  InstallUtils.close(is);
                              }
                          }
  
                          return attrs;
                      }
                  });
              } catch (PrivilegedActionException e) {
                  throw e.getCause();
              }
          }
  
          return manifestAttrs;
      }