private Set<DurationSpec> expireAfterAccesses = Sets.newHashSet((DurationSpec) null);
  private Set<DurationSpec> refreshes = Sets.newHashSet((DurationSpec) null);
  private Set<Strength> keyStrengths = Sets.newHashSet((Strength) null);
  private Set<Strength> valueStrengths = Sets.newHashSet((Strength) null);

  @CanIgnoreReturnValue
  CacheBuilderFactory withConcurrencyLevels(Set<Integer> concurrencyLevels) {

                    continue;
                }

                final String[] values = KuromojiCSVUtil.parse(replacedLine);
                String token = null;
                String segmentation = null;
                String reading = null;
                String pos = null;
                switch (values.length) {
                case 4:
                    pos = values[3];
                case 3:

        buf.append(methodName).append("(");
        if (methodArgs != null && methodArgs.length > 0) {
            for (final Object arg : methodArgs) {
                buf.append(arg == null ? null : arg.getClass().getName()).append(", ");
            }
            buf.setLength(buf.length() - 2);
        }
        buf.append(")");
        return buf.toString();
    }

    /**

   */

  /**
   * Creates a new instance with {@code null} as its detail message and no cause.
   *
   * @deprecated Prefer {@linkplain ExecutionError(Error)} a constructor that accepts a cause: Users
   *     of this class typically expect for instances to have a non-null cause. At the moment, you
   *     can <i>usually</i> still preserve behavior by passing an explicit {@code null} cause. Note,

        addSystemProperty(cmdList, Constants.FESS_CONF_PATH, null, null);
        cmdList.add("-Dfess." + getExecuteType() + ".process=true");
        if (logFilePath == null) {
            final String value = System.getProperty("fess.log.path");
            logFilePath = value != null ? value : new File(targetDir, "logs").getAbsolutePath();
        }

        public String getUNCPath() {
            return null;
        }

        @Override
        public String getURLPath() {
            return null;
        }

        @Override
        public String getShare() {
            return null;
        }

        @Override
        public String getServerWithDfs() {
            return null;
        }

        @Override

    }

    // Test with null configuration values
    public void test_withNullConfigValues() {
        ComponentUtil.setFessConfig(new FessConfig.SimpleImpl() {
            private static final long serialVersionUID = 1L;

            @Override
            public String getCookieDefaultPath() {
                return null;
            }

            @Override

    }

    // Edge/invalid inputs: null or empty share/service cause IllegalArgumentException (mocked)
    @ParameterizedTest
    @DisplayName("getSmbTree invalid inputs (null/empty) throw IllegalArgumentException")
    @CsvSource({ ",service", // null share
            " ,service", // empty share
            "share,", // null service
            "share, " // empty service
    })

    public byte[] getContextHandle() {
        return contextHandle != null ? contextHandle.clone() : null;
    }

    /**
     * Sets the context handle.
     *
     * @param contextHandle the context handle
     */
    public void setContextHandle(byte[] contextHandle) {
        this.contextHandle = contextHandle != null ? contextHandle.clone() : null;
    }

    @Override

    /**
     * Test for unwrap with null parameter.
     * Verifies behavior when null is passed to unwrap.
     */
    @Test
    void testUnwrap_withNullParameter() {
        when(smbTree.unwrap(null)).thenThrow(new NullPointerException("Type cannot be null"));

        assertThrows(NullPointerException.class, () -> smbTree.unwrap(null), "Should throw NullPointerException when type is null");
    }

    /**