Object msg = inv.getArgument(0);
            assertTrue(msg instanceof jcifs.dcerpc.msrpc.MsrpcLookupSids);
            jcifs.dcerpc.msrpc.MsrpcLookupSids rpc = (jcifs.dcerpc.msrpc.MsrpcLookupSids) msg;
            // Return success
            rpc.retval = NtStatus.NT_STATUS_SUCCESS;

            // Domains: single domain named TESTDOM

        assertDoesNotThrow(() -> {
            new MsrpcLookupSids(null, testSids);
        });
    }

    @Test
    void constructor_shouldThrowExceptionWithNullSids() {
        // Act & Assert - Null SID array causes NPE when accessing length
        assertThrows(NullPointerException.class, () -> {
            new MsrpcLookupSids(mockPolicyHandle, null);
        });
    }

    @Test

    public SIDCacheImpl(final CIFSContext baseContext) {
    }

    void resolveSids(final DcerpcHandle handle, final LsaPolicyHandle policyHandle, final jcifs.SID[] sids) throws IOException {
        final MsrpcLookupSids rpc = new MsrpcLookupSids(policyHandle, sids);
        handle.sendrecv(rpc);
        switch (rpc.retval) {
        case 0:
        case NtStatus.NT_STATUS_NONE_MAPPED:
        case 0x00000107: // NT_STATUS_SOME_NOT_MAPPED

    }

    static Map sid_cache = new HashMap();

    static void resolveSids(final DcerpcHandle handle, final LsaPolicyHandle policyHandle, final SID[] sids) throws IOException {
        final MsrpcLookupSids rpc = new MsrpcLookupSids(policyHandle, sids);
        handle.sendrecv(rpc);
        switch (rpc.retval) {
        case 0:
        case NtStatus.NT_STATUS_NONE_MAPPED:
        case 0x00000107: // NT_STATUS_SOME_NOT_MAPPED