crawlerStatsHelper.done(key);
        assertNull(localLogMsg.get());
    }

    public void test_beginDoneWithRecordOnLazy() {
        String key = "test";
        crawlerStatsHelper.begin(key);
        crawlerStatsHelper.record(key, "aaa");
        crawlerStatsHelper.runOnThread(key);
        crawlerStatsHelper.done(key);
        logger.info(localLogMsg.get());
        assertNull(localLogMsg.get());

    assertEquals(0, segment.count);
    assertNull(segment.get(key, hash));

    // cleared
    segment.setTableEntryForTesting(index, entry);
    segment.count++;
    assertEquals(1, segment.count);
    assertSame(oldValue, segment.get(key, hash));
    oldValueRef.clear();
    assertNull(segment.remove(key, hash));
    assertEquals(0, segment.count);
    assertNull(segment.get(key, hash));
  }

    assertEquals(0, segment.count);
    assertNull(segment.get(key, hash));

    // cleared
    segment.setTableEntryForTesting(index, entry);
    segment.count++;
    assertEquals(1, segment.count);
    assertSame(oldValue, segment.get(key, hash));
    oldValueRef.clear();
    assertNull(segment.remove(key, hash));
    assertEquals(0, segment.count);
    assertNull(segment.get(key, hash));
  }

    for (BoundType type : BoundType.values()) {
      assertNull(sortedMultiset.headMultiset(e0(), type).lastEntry());
      assertNull(sortedMultiset.tailMultiset(e0(), type).firstEntry());
    }
  }

  @CollectionSize.Require(ZERO)
  public void testEmptyMultisetLast() {
    assertNull(sortedMultiset.lastEntry());
    assertThrows(
        NoSuchElementException.class, () -> assertNull(sortedMultiset.elementSet().last()));
  }

    } else {
      assertThrows(UnsupportedOperationException.class, () -> table.clear());
    }
  }

  public void testPut() {
    assertNull(table.put("foo", 1, cellValue('a')));
    assertNull(table.put("bar", 1, cellValue('b')));
    assertNull(table.put("foo", 3, cellValue('c')));
    assertEquals((Character) 'a', table.put("foo", 1, cellValue('d')));
    assertEquals((Character) 'd', table.get("foo", 1));

    public void testRoot () throws MalformedURLException, CIFSException {
        try ( SmbResource p = new SmbFile("smb://", getContext()) ) {
            SmbResourceLocator fl = p.getLocator();
            assertNull(fl.getServer());
            assertNull(fl.getShare());
            assertEquals(SmbConstants.TYPE_WORKGROUP, fl.getType());
            assertEquals("\\", fl.getUNCPath());
            assertEquals("smb://", fl.getCanonicalURL());

        Type2Message parsed = new Type2Message(t2.toByteArray());
        assertArrayEquals(challenge, parsed.getChallenge());
        assertNull(parsed.getTarget());
        assertNull(parsed.getTargetInformation());
    }


    @Test
    public void testParsingType2TargetInformation () throws IOException {
        int flags = 0;
        byte[] challenge = new byte[] {

                (k, v) -> {
                  assertEquals(k3(), k);
                  assertNull(v);
                  return v3();
                }));
    expectAdded(e3());
    assertEquals(getNumElements() + 1, getMap().size());
  }

  @MapFeature.Require({SUPPORTS_PUT, SUPPORTS_REMOVE})
  public void testCompute_absentToAbsent() {
    assertNull(
        "Map.compute(absent, functionReturningNull) should return null",

                (k, v) -> {
                  assertEquals(k3(), k);
                  assertNull(v);
                  return v3();
                }));
    expectAdded(e3());
    assertEquals(getNumElements() + 1, getMap().size());
  }

  @MapFeature.Require({SUPPORTS_PUT, SUPPORTS_REMOVE})
  public void testCompute_absentToAbsent() {
    assertNull(
        "Map.compute(absent, functionReturningNull) should return null",

        assertNull(userInfoHelper.getUserCodeFromRequest(request));

        request.setParameter("userCode", "");
        assertNull(userInfoHelper.getUserCodeFromRequest(request));

        final StringBuilder buf = new StringBuilder();
        buf.append("12345abcde");
        request.setParameter("userCode", buf.toString());
        assertNull(userInfoHelper.getUserCodeFromRequest(request));