assertEquals("boom", ex3.getMessage());
    }

    @Test
    @DisplayName("ensureDFSResolved returns early for SmbComClose requests")
    void ensureDFSResolved_closeRequest_noop() throws Exception {
        SmbTreeConnection c = spy(newConn());
        SmbResourceLocatorImpl loc = new SmbResourceLocatorImpl(ctx, smbUrl("smb://server/share/"));