void shouldHandleSignedUnsignedBoundaries() {
            // Test that GENERIC_READ is the highest bit (0x80000000)
            assertEquals(0x80000000, ACE.GENERIC_READ, "GENERIC_READ should be 0x80000000");
            assertTrue(ACE.GENERIC_READ < 0, "GENERIC_READ should be negative when treated as signed int");

            // Test that other generic rights are positive

        if (desiredAccess == 0x3) {
            desiredAccess = 0x2; /* Mmm, I thought 0x03 was RDWR */
        }
        desiredAccess |= SHARING_DENY_NONE;
        desiredAccess &= ~0x1; // Win98 doesn't like GENERIC_READ ?! -- get Access Denied.

        // searchAttributes
        searchAttributes = ATTR_DIRECTORY | ATTR_HIDDEN | ATTR_SYSTEM;

        // fileAttributes
        fileAttributes = 0;

        // openFunction

        } else {
            // neither SHARE_READ nor SHARE_WRITE are set
            this.desiredAccess |= SHARING_DENY_READ_WRITE_EXECUTE;
        }

        this.desiredAccess &= ~0x1; // Win98 doesn't like GENERIC_READ ?! -- get Access Denied.

        // searchAttributes
        this.searchAttributes = SmbConstants.ATTR_DIRECTORY | SmbConstants.ATTR_HIDDEN | SmbConstants.ATTR_SYSTEM;

        // openFunction

    /** Generic execute access right */
    int GENERIC_EXECUTE = 0x20000000; // 29
    /** Generic write access right */
    int GENERIC_WRITE = 0x40000000; // 30
    /** Generic read access right */
    int GENERIC_READ = 0x80000000; // 31

    // flags for move and copy
    /** Target must be file flag */
    int FLAGS_TARGET_MUST_BE_FILE = 0x0001;
    /** Target must be directory flag */

     */
    int GENERIC_EXECUTE = 0x20000000; // 29
    /**
     * Generic write permission
     */
    int GENERIC_WRITE = 0x40000000; // 30
    /**
     * Generic read permission
     */
    int GENERIC_READ = 0x80000000; // 31

    /**
     * Inheritance flag: child objects inherit this ACE
     */
    int FLAGS_OBJECT_INHERIT = 0x01;
    /**
     * Inheritance flag: child containers inherit this ACE

            0x00100000, // SYNCHRONIZE
            0x10000000, // GENERIC_ALL
            0x20000000, // GENERIC_EXECUTE
            0x40000000, // GENERIC_WRITE
            0x80000000 // GENERIC_READ (as int will be negative)
    })
    void testVariousAccessMaskValues(int accessMask) {
        ace.access = accessMask;
        assertEquals(accessMask, ace.getAccessMask());
    }

    @Test

    public static final int GENERIC_EXECUTE = 0x20000000; // 29
    /** Generic write permission */
    public static final int GENERIC_WRITE = 0x40000000; // 30
    /** Generic read permission */
    public static final int GENERIC_READ = 0x80000000; // 31

    /** Inheritance flag: child objects inherit this ACE */
    public static final int FLAGS_OBJECT_INHERIT = 0x01;
    /** Inheritance flag: child containers inherit this ACE */

     */
    int GENERIC_EXECUTE = 0x20000000; // 29
    /**
     * Generic write permission.
     */
    int GENERIC_WRITE = 0x40000000; // 30
    /**
     * Generic read permission.
     */
    int GENERIC_READ = 0x80000000; // 31

    // flags for move and copy
    /**
     * Target must be a file flag.
     */
    int FLAGS_TARGET_MUST_BE_FILE = 0x0001;
    /**
     * Target must be a directory flag.

	}

	var access uint32
	switch flag {
	case syscall.O_RDONLY:
		access = syscall.GENERIC_READ
	case syscall.O_WRONLY:
		access = syscall.GENERIC_WRITE
	case syscall.O_RDWR:
		fallthrough
	case syscall.O_RDWR | syscall.O_CREAT:
		fallthrough
	case syscall.O_WRONLY | syscall.O_CREAT:
		access = syscall.GENERIC_READ | syscall.GENERIC_WRITE
	case syscall.O_WRONLY | syscall.O_CREAT | syscall.O_APPEND:

        final boolean hasWriteAccess =
                (access & (GENERIC_WRITE | FILE_WRITE_DATA | FILE_APPEND_DATA | FILE_WRITE_ATTRIBUTES | FILE_WRITE_EA)) != 0;
        final boolean hasReadAccess = (access & (GENERIC_READ | FILE_READ_DATA | FILE_READ_ATTRIBUTES | FILE_READ_EA)) != 0;

        // Full lease for read/write/handle operations
        if (hasWriteAccess || hasDeleteAccess) {