@Override
          boolean isPermitted(Exception exception) {
            return exception instanceof UnsupportedOperationException;
          }
        };
    static final PermittedMetaException ISE =
        new PermittedMetaException("IllegalStateException") {
          @Override
          boolean isPermitted(Exception exception) {
            return exception instanceof IllegalStateException;
          }
        };

          @Override
          boolean isPermitted(Exception exception) {
            return exception instanceof UnsupportedOperationException;
          }
        };
    static final PermittedMetaException ISE =
        new PermittedMetaException("IllegalStateException") {
          @Override
          boolean isPermitted(Exception exception) {
            return exception instanceof IllegalStateException;
          }
        };

  public void testNoProviders() {
    ProviderList providers = Providers.getProviderList();
    Providers.setProviderList(ProviderList.newList());
    try {
      Hashing.hmacMd5(MD5_KEY);
      fail("expected ISE");
    } catch (IllegalStateException expected) {
    } finally {
      Providers.setProviderList(providers);
    }
  }

  public void testMultipleUpdates() throws Exception {

  }

  /**
   * Catches a bug where when constructing a service manager failed, later interactions with the
   * service could cause IllegalStateExceptions inside the partially constructed ServiceManager.
   * This ISE wouldn't actually bubble up but would get logged by ExecutionQueue. This obfuscated
   * the original error (which was not constructing ServiceManager correctly).
   */
  public void testPartiallyConstructedManager() {