credentials = new NTCredentials(username, password == null ? StringUtil.EMPTY : password,
                    workstation == null ? StringUtil.EMPTY : workstation, domain == null ? StringUtil.EMPTY : domain);
        } else {
            credentials = new UsernamePasswordCredentials(username, password == null ? StringUtil.EMPTY : password);
        }
        return credentials;
    }

        scriptEngineFactory.add("test", testScriptEngine);

        // Execute with null script
        Object result = scriptExecutor.execute("test", null);

        // Verify null was passed through
        assertEquals("processed: null", result);
        assertNull(testScriptEngine.getLastScript());
    }

    public void test_execute_withEmptyScript() {
        // Setup test script engine

            @Override
            public String[] getLanguages() {
                return null;
            }

            @Override
            public GeoInfo getGeoInfo() {
                return null;
            }

            @Override
            public FacetInfo getFacetInfo() {
                return null;
            }

            @Override
            public String getSort() {

      }
    }
    if (thread == null) {
      thread = new Thread((ThreadGroup) null, finalizer, threadName);
    }
    thread.setDaemon(true);

    try {
      if (inheritableThreadLocals != null) {
        inheritableThreadLocals.set(thread, null);
      }
    } catch (Throwable t) {
      logger.log(
          Level.INFO,

        assertDoesNotThrow(() -> SingletonContext.init(null));
        assertNotNull(SingletonContext.getInstance()); // Should still initialize
    }

    @Test
    void testGetInstanceInitializesIfNull() {
        // Test getInstance initializes the context if it's null
        assertNull(getSingletonInstanceViaReflection()); // Ensure it's null initially
        CIFSContext context = SingletonContext.getInstance();

     * If the input array is {@code null}, an empty stream is returned.
     *
     * @param <T> The type of elements in the stream.
     * @param values The elements to be included in the stream. Can be {@code null}.
     * @return A {@link StreamOf} instance containing the provided values, or an empty stream if {@code values} is {@code null}.
     */
    @SafeVarargs

        if (value != null) {
            final StringBuilder buf = new StringBuilder();
            buf.append("-D").append(name).append("=").append(value);
            if (appendValue != null) {
                buf.append(appendValue);
            }
            cmdList.add(buf.toString());
        } else if (defaultValue != null) {
            cmdList.add("-D" + name + "=" + defaultValue);

        // Test with null value
        String nullValue = null;
        OptionalEntity<String> emptyOptional = OptionalUtil.ofNullable(nullValue);

        assertFalse(emptyOptional.isPresent());
        assertEquals("default", emptyOptional.orElse("default"));

        // Test that empty optional returns null instead of throwing
        assertNull(emptyOptional.orElse(null));
    }

 * NullPointerException} or {@link UnsupportedOperationException} whenever null is passed to a
 * parameter whose declaration or type isn't annotated with an annotation with the simple name
 * {@code Nullable}, {@code CheckForNull}, {@code NullableType}, or {@code NullableDecl}.
 *
 * <p>The tested methods and constructors are invoked -- each time with one parameter being null and
 * the rest not null -- and the test fails if no expected exception is thrown. {@code

    }

    @Override
    public void info(final String message, final Throwable t) {
        logger.logp(Level.INFO, sourceClass, null, message, t);
    }

    @Override
    public boolean isDebugEnabled() {
        return logger.isLoggable(Level.FINE);
    }

    @Override
    public void debug(final String message) {
        logger.logp(Level.FINE, sourceClass, null, message);
    }