assertEquals(cause, ex.getCause());
        // IOException(Throwable) sets message to cause.toString()
        assertEquals(cause.toString(), ex.getMessage());
    }

    @Test
    @DisplayName("Should create SpnegoException with message and cause")
    void testWithMessageAndCause() {
        // Given
        String message = "SPNEGO handshake error";
        RuntimeException cause = new RuntimeException("root cause");

    @Override
    protected final Map<String, String> create(Entry<String, String>[] entries) {
      HashMap<String, String> map = new HashMap<>();
      for (Entry<String, String> entry : entries) {
        map.put(entry.getKey(), entry.getValue());
      }
      return wrap(map);
    }

    abstract Map<String, String> wrap(HashMap<String, String> map);
  }

  private static TestSuite wrappedHashMapTests(

     * @return The environment for LDAP connection.
     */
    protected Hashtable<String, String> createEnvironment(final String initialContextFactory, final String securityAuthentication,
            final String providerUrl, final String principal, final String credntials) {
        final Hashtable<String, String> env = new Hashtable<>();
        putEnv(env, Context.INITIAL_CONTEXT_FACTORY, initialContextFactory);

    private final SuggestSettings settings;

    /** Analyzer map. */
    protected static Map<String, Set<String>> analyzerMap = new ConcurrentHashMap<>();
    /** Field analyzer mapping map. */
    protected static Map<String, Map<String, FieldAnalyzerMapping>> fieldAnalyzerMappingMap = new ConcurrentHashMap<>();

    /** Supported languages. */

        @Nullable
        public Options options;

        public Map<String, String> extraInterpolationSource() {
            Map<String, String> extra = new HashMap<>();
            extra.put("session.topDirectory", topDirectory.toString());
            if (rootDirectory != null) {
                extra.put("session.rootDirectory", rootDirectory.toString());
            }
            return extra;
        }
    }

    protected final String _tableDbName = "click_log";
    protected final String _tableDispName = "click_log";
    protected final String _tablePropertyName = "ClickLog";

    public String getTableDbName() {
        return _tableDbName;
    }

    @Override
    public String getTableDispName() {
        return _tableDispName;
    }

    @Override

        }

        @Override
        public boolean matchesRequirements(Map<String, String> requirements) {
            return delegate.matchesRequirements(requirements);
        }

        @Override
        public String toString() {
            return delegate.toString();
        }
    }

   * size to reach 0, causing an infinite loop.
   */
  @SuppressWarnings("InlineMeInliner") // String.repeat unavailable under Java 8
  public void testCopyWithReaderThatDoesNotFillBuffer() throws IOException {
    // need a long enough string for the buffer to hit 0 remaining before the copy completes
    String string = Strings.repeat("0123456789", 100);
    StringBuilder b = new StringBuilder();

   * size to reach 0, causing an infinite loop.
   */
  @SuppressWarnings("InlineMeInliner") // String.repeat unavailable under Java 8
  public void testCopyWithReaderThatDoesNotFillBuffer() throws IOException {
    // need a long enough string for the buffer to hit 0 remaining before the copy completes
    String string = Strings.repeat("0123456789", 100);
    StringBuilder b = new StringBuilder();

          }
        });

    String unused = future.toString();

    SettableFuture<Object> future2 = SettableFuture.create();

    // A more organic OOM from a toString implementation
    Object object =
        new Object() {
          @Override
          public String toString() {
            return new String(new char[50_000]);
          }
        };