*   domainName = InternetDomainName.from(name);
   * } catch (IllegalArgumentException e) {
   *   domainName = DEFAULT_DOMAIN;
   * }
   * }</pre>
   *
   * @since 8.0 (previously named {@code isValidLenient})
   */
  public static boolean isValid(String name) {
    try {
      InternetDomainName unused = from(name);
      return true;
    } catch (IllegalArgumentException e) {
      return false;
    }

 *         // Give the services 5 seconds to stop to ensure that we are responsive to shutdown
 *         // requests.
 *         try {
 *           manager.stopAsync().awaitStopped(5, TimeUnit.SECONDS);
 *         } catch (TimeoutException timeout) {
 *           // stopping timed out
 *         }
 *       }
 *     });
 *     manager.startAsync();  // start all the services asynchronously
 *   }
 * }
 * }</pre>
 *

            final Class<?> javaLangAccessClass = Class.forName("sun.misc.JavaLangAccess");
            newStringUnsafeMethod = javaLangAccessClass.getMethod("newStringUnsafe", char[].class);
        } catch (final Throwable t) {
            // ignore
            // t.printStackTrace();
        }
    }

    /**
     * 文字列が<code>null</code>または空文字列なら<code>true</code>を返します。
     *
     * @param text

			iptableslog.UndefinedCommand, ChainInpodPrerouting, iptablesconstants.MANGLE,
			"!", "-d", iptablesconstants.IPVersionSpecific, // ignore traffic to localhost ip, as this rule means to catch traffic to pod ip.
			"-p", iptablesconstants.TCP,
			"-i", "lo",
			"-j", "ACCEPT")

        return super.removeAll(checkNotNull(c));
      } catch (UnsupportedOperationException e) {
        // if the iterators don't support remove
        return Sets.removeAllImpl(this, c.iterator());
      }
    }

    @Override
    public boolean retainAll(Collection<?> c) {
      try {
        return super.retainAll(checkNotNull(c));
      } catch (UnsupportedOperationException e) {

        return super.removeAll(checkNotNull(c));
      } catch (UnsupportedOperationException e) {
        // if the iterators don't support remove
        return Sets.removeAllImpl(this, c.iterator());
      }
    }

    @Override
    public boolean retainAll(Collection<?> c) {
      try {
        return super.retainAll(checkNotNull(c));
      } catch (UnsupportedOperationException e) {

    // with throwing the exception
    for (int i = 0; i < 2; i++) {
      try {
        memoizedSupplier.get();
        fail("failed to throw NullPointerException");
      } catch (NullPointerException e) {
        // this is what should happen
      }
    }
  }

  @J2ktIncompatible
  @GwtIncompatible // SerializableTester
  public void testMemoizeNonSerializable() throws Exception {

    // with throwing the exception
    for (int i = 0; i < 2; i++) {
      try {
        memoizedSupplier.get();
        fail("failed to throw NullPointerException");
      } catch (NullPointerException e) {
        // this is what should happen
      }
    }
  }

  @J2ktIncompatible
  @GwtIncompatible // SerializableTester
  public void testMemoizeNonSerializable() throws Exception {

   */
  private static int runSuppressionFailureTest(ByteSource in, ByteSink out) {
    try {
      in.copyTo(out);
      fail();
    } catch (IOException expected) {
      return expected.getSuppressed().length;
    }
    throw new AssertionError(); // can't happen
  }

  private static ByteSource newNormalByteSource() {

            for (int i = 0; i < 64; i++) {
                versions.add(newVersion(UUID.randomUUID().toString()));
            }
            try {
                Collections.sort(versions);
            } catch (Exception e) {
                e.printStackTrace(System.err);
                System.err.println("The UUIDs used");
                System.err.println(versions.stream().map(Version::toString).collect(Collectors.joining("\n")));