@Test
    public void testReplace() throws Exception {
        assertEquals("1", "1bc45", StringUtil.replace("12345", "23", "bc"));
        assertEquals("2", "1234ef", StringUtil.replace("12345", "5", "ef"));
        assertEquals("3", "ab2345", StringUtil.replace("12345", "1", "ab"));
        assertEquals("4", "a234a", StringUtil.replace("12341", "1", "a"));
        assertEquals("5", "ab234abab234ab", StringUtil.replace("1234112341", "1", "ab"));

        @Override
        public String toString() {
          return "string2long";
        }
      };

  private static final Long LONG_VAL = 12345L;
  private static final String STR_VAL = "12345";

  private static final ImmutableList<String> STRINGS = ImmutableList.of("123", "456");
  private static final ImmutableList<Long> LONGS = ImmutableList.of(123L, 456L);

  public void testConverter() {

/**
 * Benchmark for {@code LocalCache.Segment.removeEntryFromChain}.
 *
 * @author Charles Fry
 */
@SuppressWarnings("CheckReturnValue")
@NullUnmarked
public class ChainBenchmark {

  @Param({"1", "2", "3", "4", "5", "6"})
  int length;

  private Segment<Object, Object> segment;
  private ReferenceEntry<Object, Object> head;
  private @Nullable ReferenceEntry<Object, Object> chain;

  @SuppressWarnings("GuardedBy")

    public void test_sizeOf_numberTypes() {
        // Test various Number subclasses
        assertEquals(24L, MemoryUtil.sizeOf(new BigInteger("123456789")));
        assertEquals(24L, MemoryUtil.sizeOf(new BigDecimal("123.456")));
        assertEquals(24L, MemoryUtil.sizeOf((byte) 1));
        assertEquals(24L, MemoryUtil.sizeOf((short) 1));
        assertEquals(24L, MemoryUtil.sizeOf(1));
        assertEquals(24L, MemoryUtil.sizeOf(1L));

            assertEquals("2001:db8:0:1::1", method.invoke(null, "2001:0db8:0:1:0:0:0:1"));

            // No compression when all segments are non-zero (just remove leading zeros)
            assertEquals("2001:db8:1:2:3:4:5:6", method.invoke(null, "2001:0db8:0001:0002:0003:0004:0005:0006"));

            // Single zero should not be compressed
            assertEquals("2001:db8:1:0:2:3:4:5", method.invoke(null, "2001:0db8:1:0:2:3:4:5"));

    X2337,
    X2338,
    X2339,
    X2340,
    X2341,
    X2342,
    X2343,
    X2344,
    X2345,
    X2346,
    X2347,
    X2348,
    X2349,
    X2350,
    X2351,
    X2352,
    X2353,
    X2354,
    X2355,
    X2356,
    X2357,
    X2358,
    X2359,
    X2360,
    X2361,
    X2362,
    X2363,
    X2364,

        when(mockConnection.getDoInput()).thenReturn(true);
        when(mockConnection.getDoOutput()).thenReturn(true);
        when(mockConnection.getIfModifiedSince()).thenReturn(12345L);
        when(mockConnection.getUseCaches()).thenReturn(false);
        when(mockConnection.getReadTimeout()).thenReturn(1000);
        when(mockConnection.getConnectTimeout()).thenReturn(2000);

        assertEquals("********", SystemUtil.maskSensitiveValue("auth_header", "Bearer xyz"));
        assertEquals("********", SystemUtil.maskSensitiveValue("OAUTH_CLIENT_ID", "123456"));
    }

    @Test
    public void test_maskSensitiveValue_withPrivate() {
        assertEquals("********", SystemUtil.maskSensitiveValue("PRIVATE_DATA", "sensitive"));

  public void testBytes() {
    TestHasher hasher = new TestHasher(); // byte order insignificant here
    byte[] expected = {1, 2, 3, 4, 5, 6, 7, 8};
    hasher.putByte((byte) 1);
    hasher.putBytes(new byte[] {2, 3, 4, 5, 6});
    hasher.putByte((byte) 7);
    hasher.putBytes(new byte[] {});
    hasher.putBytes(new byte[] {8});
    hasher.assertBytes(expected);
  }

  public void testShort() {

	}, {
		header:  &Header{ChangeTime: time.Unix(123, 456)},
		paxHdrs: map[string]string{paxCtime: "123.000000456"},
		formats: FormatPAX | FormatGNU,
	}, {
		header:  &Header{ChangeTime: time.Unix(123, 456), Format: FormatUSTAR},
		paxHdrs: map[string]string{paxCtime: "123.000000456"},
		formats: FormatUnknown,
	}, {
		header:  &Header{ChangeTime: time.Unix(123, 456), Format: FormatGNU},