DummyPlainSMB next = new DummyPlainSMB();
        DummyAndXBlock block = new DummyAndXBlock(next);
        block.customBatchLimit = 2; // batchLevel (0) < limit (2) so chaining allowed
        block.uid = 0x1234;
        block.useUnicode = true;

        byte[] buf = new byte[256];
        int n = block.writeAndXWireFormat(buf, 0);

        assertTrue(n > 0);

     * <p>
     * This method starts a process with the given command list, manages its execution,
     * handles timeouts, and logs relevant information. It ensures the process is destroyed
     * if it exceeds the allowed execution time or becomes unresponsive. The method also
     * captures and logs the process output for debugging purposes.
     * </p>
     *
     * @param thumbnailId the identifier for the thumbnail being generated

        SmbTree tree = new SmbTree(session, "testShare", "PRINT");
        tree.connectionState = 2; // Connected state
        tree.tid = 123;

        // Create request with command not allowed for PRINT service
        ServerMessageBlock request = new SmbComDelete("testfile.txt");
        ServerMessageBlock response = new SmbComBlankResponse();

        // Should throw exception for invalid operation

    }

    // Parameterized tests for String edge cases on getName
    static Stream<Arguments> nameProvider() {
        return Stream.of(Arguments.of("", "empty string is allowed"), Arguments.of(" ", "single space is preserved"),
                Arguments.of("复杂名.txt", "unicode name is preserved"), Arguments.of(null, "null name is passed through"));
    }

        void testInitSecContextNullToken() throws Exception {
            DummySSPContext ctx = new DummySSPContext(new byte[] { 1 }, false, null, null, 0, false);
            // len == 0 is allowed and returns empty token
            assertArrayEquals(new byte[0], ctx.initSecContext(null, 0, 0));
            // len > 0 is invalid
            assertThrows(CIFSException.class, () -> ctx.initSecContext(null, 0, 1));

return j.length&&(a.each(j,function(b,c){return i=!1,k=c.type||c.name.substring(c.name.lastIndexOf(".")+1),a.each(l,function(a,b){if(i=k.indexOf(b)>-1)return!1}),i}),i||(a.formUtils.warn("Trying to upload a file with mime type "+k+" which is not allowed"),e(this,"wrongFileType",l.join(", "),h))),i}return a.formUtils.warn("FileReader not supported by browser, will check file extension"),a.formUtils.validators.validate_extension.validatorFunction(b,f,g,h)},errorMessage:"",errorMessageKey:"wrongFil...

     */
    boolean isTraceResourceUsage();

    /**
     * Checks if compound requests are allowed for the specified command
     *
     * @param command the SMB command to check
     * @return whether to allow creating compound requests with that command
     */
    boolean isAllowCompound(String command);

    /**
     * Machine identifier
     *

    protected String groupPrefix = "{group}";

    /** Prefix used to identify user-based permissions */
    protected String userPrefix = "{user}";

    /** Prefix used to identify allow permissions */
    protected String allowPrefix = "(allow)";

    /** Prefix used to identify deny permissions */
    protected String denyPrefix = "(deny)";

    /** System helper for user/group/role search operations */
    @Resource

   * escaped.
   */
  private final boolean[] safeOctets;

  /**
   * Constructs a percent escaper with the specified safe characters and optional handling of the
   * space character.
   *
   * <p>Not that it is allowed, but not necessarily desirable to specify {@code %} as a safe
   * character. This has the effect of creating an escaper which has no well-defined inverse but it
   * can be useful when escaping additional characters.
   *

그러면 브라우저는 백엔드에 HTTP `OPTIONS` 요청을 보내고, 백엔드에서 이 다른 출처(`http://localhost:8080`)와의 통신을 허가하는 적절한 헤더를 보내면, 브라우저는 프론트엔드의 자바스크립트가 백엔드에 요청을 보낼 수 있도록 합니다.

이를 위해, 백엔드는 "허용된 출처(allowed origins)" 목록을 가지고 있어야만 합니다.

이 경우, 프론트엔드가 제대로 동작하기 위해 `http://localhost:8080`을 목록에 포함해야 합니다.

## 와일드카드

모든 출처를 허용하기 위해 목록을 `"*"` ("와일드카드")로 선언하는 것도 가능합니다.