assertTrue(true);
        } catch (Exception e) {
            assertTrue(true);
        }
    }

    public void test_crawl_withEmptyLists() {
        try {
            webFsIndexHelper.crawl("sessionId", Collections.emptyList(), Collections.emptyList());
            assertTrue(true);
        } catch (Exception e) {
            assertTrue(true);
        }
    }

    try {
      super.testEntrySetRemoveAllNullFromEmpty();
    } catch (RuntimeException tolerated) {
      // GWT's HashMap.entrySet().removeAll(null) doesn't throws NPE.
    }
  }

  @Override
  public void testEntrySetRetainAllNullFromEmpty() {
    try {
      super.testEntrySetRetainAllNullFromEmpty();
    } catch (RuntimeException tolerated) {

        return new ThrowingCreator();
      }

      // Don't merge these catch() blocks, let alone use ReflectiveOperationException directly:
      // b/65343391
    } catch (NoSuchFieldException e) {
      // The JELLY_BEAN field doesn't exist because we're running on a version before Jelly Bean :)
      return new ThrowingCreator();
    } catch (ClassNotFoundException e) {

            fail("Should throw FessSystemException");
        } catch (FessSystemException e) {
            assertEquals("Invalid format: 12", e.getMessage());
        }

        try {
            IntervalControlHelper.parseTime("12:30:45");
            fail("Should throw FessSystemException");
        } catch (FessSystemException e) {
            assertEquals("Invalid format: 12:30:45", e.getMessage());

      try {
        return input.readByte();
      } catch (EOFException e) {
        throw new IllegalStateException(e);
      } catch (IOException impossible) {
        throw new AssertionError(impossible);
      }
    }

    @Override
    public int readUnsignedByte() {
      try {
        return input.readUnsignedByte();
      } catch (IOException e) {
        throw new IllegalStateException(e);
      }
    }

    try {
      super.testEntrySetRemoveAllNullFromEmpty();
    } catch (RuntimeException tolerated) {
      // GWT's TreeMap.entrySet().removeAll(null) doesn't throws NPE.
    }
  }

  @Override
  public void testEntrySetRetainAllNullFromEmpty() {
    try {
      super.testEntrySetRetainAllNullFromEmpty();
    } catch (RuntimeException tolerated) {

            } catch (final Exception e) {
                logger.warn("Failed to add exclude_urls on " + sessionId, e);
            }
            cachedExcludeSet.clear();
        }
    }

    /*
     * (non-Javadoc)
     *
     * @see org.codelibs.fess.crawler.filter.UrlFilter#match(java.lang.String)
     */
    @Override
    public boolean match(final String url) {

                } catch (final Exception e) {
                    logger.warn("Could not close a process error stream.", e);
                } finally {
                    latch.countDown();
                }
            }, "ProcessCloser-error-" + sessionId).start();
            new Thread(() -> {
                try {
                    CloseableUtil.closeQuietly(process.getOutputStream());
                } catch (final Exception e) {

        options.sessionId = "test-session";

        try {
            int result = errorCrawler.doCrawl(options);
            // Should catch the exception and return EXIT_FAIL
            assertEquals(Constants.EXIT_FAIL, result);
        } catch (RuntimeException e) {
            // Expected behavior - test exception propagates
            assertEquals("Test exception", e.getMessage());
        }
    }

    IOException exception = new IOException();

    try {
      try {
        throw exception;
      } catch (Throwable e) {
        throw closer.rethrow(e);
      } finally {
        closer.close();
      }
    } catch (Throwable expected) {
      assertSame(exception, expected);
    }

    assertTrue(c1.isClosed());
    assertTrue(c2.isClosed());