OSGi bundle installation using pax-exam issue

Question

I'm trying to write spock pax exam extension, but figured out a problem with bundle installation using server mode.

Here is my code

void visitSpecAnnotation(RunPax annotation, SpecInfo sp) {
    sp.addListener(new AbstractRunListener() {
        private TestContainer container

        @Override
        void beforeSpec(SpecInfo spec) {
            ExamSystem system = PaxExamRuntime.createServerSystem(
                    CoreOptions.options(
                            karafDistributionConfiguration("mvn:org.apache.servicemix/apache-servicemix/4.4.1-fuse-03-06/tar.gz", // artifact to unpack and use
                                    "servicemix", // name; display only
                                    "2.2.4")
                                    .unpackDirectory(new File("target/paxexam/unpack/"))
                                    .useDeployFolder(false),
                            //debugConfiguration("5005", true),
                            keepRuntimeFolder(),
                            configureConsole().ignoreLocalConsole(),
                            when(isEquinox()).useOptions(
                                    editConfigurationFilePut(
                                            KARAF_FRAMEWORK, "equinox"),
                                    systemProperty("pax.exam.framework").value(
                                            System.getProperty("pax.exam.framework")),
                                    //systemProperty("osgi.console").value("6666"),
                                    //systemProperty("osgi.console.enable.builtin").value("true")
                            ),
                            logLevel(WARN),
                            mavenBundle("org.sdo.coding", "words", "1.0")

                    ))
            container = PaxExamRuntime.createContainer(system)
            container.start()

            Thread.sleep(100000)

            def ant = new AntBuilder()
            ant.sshexec(host: "localhost",
                    port: '8101',
                    username: "smx",
                    password: 'smx',
                    trust: "yes",
                    command: "list",
                    outputproperty: 'result',
                    knownhosts: '/dev/null')

            def result = ant.project.properties.'result'
            println "result is $result"
            def installed = result =~ /(?m)^(.*Installed.*)$/
            println "installed ${installed[0]}"

        }

Even if i increase delay i cannot find my bundle installed. I can see that the option mavenBundle doesn't affect karaf start, because if i place wrong version or artifactId, pax won't notify me about it.

Anyone has any clue on this problem?