assertThrows(NullPointerException.class, () -> concreteImplementation.combine(null));
        }

        @Test
        @DisplayName("Should handle null in append")
        void testAppendWithNull() {
            // Test with mock
            doNothing().when(mockReferralData).append(null);
            assertDoesNotThrow(() -> mockReferralData.append(null));

    }

    /**
     * Tests the isCredentialTypeCorrect method with a null byte array.
     * This test is indirect as the constructor would throw an exception.
     * We can't instantiate the class with null, so we can't directly test this method's behavior with null.
     * However, the constructor logic `!isCredentialTypeCorrect()` covers this.
     * If `new PacCredentialType(null)` throws, it implies `isCredentialTypeCorrect()` returned false for null.

    }

    private boolean determineVersionMatch(String version) {
        String test = version;
        boolean reverse = false;

        if (test.startsWith("!")) {
            reverse = true;
            test = test.substring(1);
        }

        boolean result = Os.OS_VERSION.equals(test);

        if (reverse) {

        // Filter accepts only when name is exactly null, otherwise false
        SmbFilenameFilter filter = (dir, n) -> n == null;

        boolean result = filter.accept(mockDir, name);

        if (name == null) {
            assertTrue(result, "Null name should be accepted by this filter");
        } else {
            assertFalse(result, "Non-null names should be rejected by this filter");
        }

        assertEquals("first,null,third", result);
    }

    @Test
    @DisplayName("Should handle all null elements")
    void testJoinWithAllNullElements() {
        String result = StringUtil.join(",", null, null, null);
        assertEquals("null,null,null", result);
    }

    @Test
    @DisplayName("Should handle empty string elements")
    void testJoinWithEmptyStringElements() {

        // and we want artifact resolution to only return the system scoped artifact itself.
        //
        if (artifact.getScope() != null && artifact.getScope().equals(Artifact.SCOPE_SYSTEM)) {
            return new ResolutionGroup(null, null, null);
        }

        ResolutionGroup cached = cache.get(
                artifact,
                request.isResolveManagedVersions(),

      when {
        response != null && response.code != 101 -> response.body.string()
        else -> null
      }

    override fun toString(): String =
      when (response) {
        null -> "Failure[$t]"
        else -> "Failure[$response]"
      }
  }

  internal data class Message(
    val bytes: ByteString? = null,
    val string: String? = null,
  )

  internal data class Ping(

        if (reporting != null) {
            reporting.setOutputDirectory(alignToBaseDirectory(reporting.getOutputDirectory(), basedir));
        }
    }

    @Override
    public String alignToBaseDirectory(String path, File basedir) {
        if (basedir == null) {
            return path;
        }

        if (path == null) {
            return null;
        }

    /**
     * Initializes the form with default null values.
     * This method resets all fields to their default state for creating a new entry.
     */
    public void initialize() {
        id = null;
        jobName = null;
        jobStatus = null;
        target = null;
        scriptType = null;
        scriptData = null;
        scriptResult = null;
        startTime = null;
        endTime = null;
    }

is._dialog].forEach((function(t){return o.default(t).off(".bs.modal")})),o.default(document).off(pt),o.default.removeData(this._element,rt),this._config=null,this._element=null,this._dialog=null,this._backdrop=null,this._isShown=null,this._isBodyOverflowing=null,this._ignoreBackdropClick=null,this._isTransitioning=null,this._scrollbarWidth=null},e.handleUpdate=function(){this._adjustDialog()},e._getConfig=function(t){return t=r({},Tt,t),d.typeCheckConfig("modal",t,wt),t},e._triggerBackdropTransition=function(){var...