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));

        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);

        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"));
    }

     * <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

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

Socket writes are guarded by the Http2Writer. Only one stream can write at a time so that messages are not interleaved. Writes are either made by application-layer threads or the do-stuff-later pool.

### Holding multiple locks

You're allowed to take the Http2Connection lock while holding the Http2Writer lock. But not vice-versa. Because taking the Http2Writer lock can block.

DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'

# Collect all arguments for the java command:
#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and optsEnvironmentVar are not allowed to contain shell fragments,
#     and any embedded shellness will be escaped.
#   * For example: A user cannot expect ${Hostname} to be expanded, as it is an environment variable and will be