}

    /**
     * Test getInitialSize() when the size is zero.
     */
    @Test
    void testGetInitialSize_zero() {
        long expectedSize = 0L;
        when(smbFileHandle.getInitialSize()).thenReturn(expectedSize);
        long actualSize = smbFileHandle.getInitialSize();
        assertEquals(expectedSize, actualSize, "getInitialSize should return 0 for an empty file.");

     */
    void release() throws CIFSException;

    /**
     * Returns the initial size of the file when it was opened
     *
     * @return the file size when it was opened
     */
    long getInitialSize();

            throw new SmbException("Descriptor is no longer valid");
        }
        return this.fileId;
    }

    /**
     * @return the initialSize
     */
    @Override
    public long getInitialSize() {
        return this.initialSize;
    }

    /**
     * {@inheritDoc}
     *
     * @see jcifs.SmbFileHandle#getTree()
     */
    @Override
    public SmbTreeHandleImpl getTree() {