final Path baseDir = tempFolder.getRoot().toPath();
        final Path traversalPath = baseDir.resolve("../../../etc/passwd");

        assertFalse("Path traversal should be blocked", FileUtil.isPathSafe(traversalPath, baseDir));
    }

    /**
     * Test isPathSafe with File objects
     *
     * @throws Exception
     */
    @Test

    // 1. the runner has been woken up
    // 2. the interrupter is stuck in the call the Thread.interrupt()

    // after some period of time the runner thread should become blocked on the task because it is
    // waiting for the slow interrupting thread to complete Thread.interrupt
    awaitBlockedOnInstanceOf(runner, InterruptibleTask.Blocker.class);

    // 1. the runner has been woken up
    // 2. the interrupter is stuck in the call the Thread.interrupt()

    // after some period of time the runner thread should become blocked on the task because it is
    // waiting for the slow interrupting thread to complete Thread.interrupt
    awaitBlockedOnInstanceOf(runner, InterruptibleTask.Blocker.class);

  private static final long SMALL_TIMEOUT_MILLIS = 10;

  /** How long to wait when determining that a thread is blocked if we expect it to be blocked. */
  private static final long EXPECTED_HANG_DELAY_MILLIS = 75;

  /**
   * How long to wait when determining that a thread is blocked if we DON'T expect it to be blocked.
   */
  private static final long UNEXPECTED_HANG_DELAY_MILLIS = 10000;

  /**

    @Test
    public void testClearBlacklist() throws Exception {
        validator.addToBlacklist("\\share\\blocked");
        validator.clearBlacklist();

        // Should allow previously blacklisted path
        String allowed = validator.validatePath("\\share\\blocked\\file.txt");
        assertEquals("\\share\\blocked\\file.txt", allowed);
    }

    @Test
    public void testClearWhitelist() throws Exception {

        // javascript: protocol should be blocked
        assertFalse(result.contains("javascript:"));
    }

    @Test
    public void test_render_xss_dataProtocol() {
        String malicious = "[Click me](data:text/html,<script>alert('XSS')</script>)";
        String result = markdownRenderer.render(malicious);
        // data: protocol should be blocked
        assertFalse(result.contains("data:text/html"));

  private static final long SMALL_TIMEOUT_MILLIS = 10;

  /** How long to wait when determining that a thread is blocked if we expect it to be blocked. */
  private static final long EXPECTED_HANG_DELAY_MILLIS = 75;

  /**
   * How long to wait when determining that a thread is blocked if we DON'T expect it to be blocked.
   */
  private static final long UNEXPECTED_HANG_DELAY_MILLIS = 10000;

  /**

	c.infReads.Store(t.IsZero())
	c.infWrites.Store(t.IsZero())
	return c.Conn.SetDeadline(t)
}

// SetReadDeadline sets the deadline for future Read calls
// and any currently-blocked Read call.
// A zero value for t means Read will not time out.
func (c *DeadlineConn) SetReadDeadline(t time.Time) error {
	c.mu.Lock()
	defer c.mu.Unlock()
	c.abortReads.Store(!t.IsZero() && time.Until(t) < 0)

            }
            throw new RejectedExecutionException();
          }
        };
    SequentialExecutor executor = new SequentialExecutor(delegate);
    ExecutorService blocked = newCachedThreadPool();
    Future<?> first = blocked.submit(() -> executor.execute(Runnables.doNothing()));
    future.get(10, SECONDS);
    assertThrows(RejectedExecutionException.class, () -> executor.execute(Runnables.doNothing()));

            }
            throw new RejectedExecutionException();
          }
        };
    SequentialExecutor executor = new SequentialExecutor(delegate);
    ExecutorService blocked = newCachedThreadPool();
    Future<?> first = blocked.submit(() -> executor.execute(Runnables.doNothing()));
    future.get(10, SECONDS);
    assertThrows(RejectedExecutionException.class, () -> executor.execute(Runnables.doNothing()));