Resources referenced from classloader not released

-------------------------------------------------------------------------------
Test set: org.jboss.narayana.quickstart.jca.model.CustomerDAOTest
-------------------------------------------------------------------------------
Tests run: 10, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 2.32 sec <<< FAILURE!
org.jboss.narayana.quickstart.jca.model.CustomerDAOTest  Time elapsed: 0.063 sec  <<< ERROR!
java.io.IOException: Could not delete C:\Users\hudson\AppData\Local\Temp\2\iron.jacamar\tmp\jdbc-xa.rar\ironjacamar-jdbc.jar
	at com.github.fungal.impl.KernelImpl.recursiveDelete(KernelImpl.java:1520)
	at com.github.fungal.impl.KernelImpl.recursiveDelete(KernelImpl.java:1515)
	at com.github.fungal.impl.KernelImpl.recursiveDelete(KernelImpl.java:1515)
	at com.github.fungal.impl.KernelImpl.shutdown(KernelImpl.java:850)
	at org.jboss.jca.embedded.EmbeddedJCA.shutdown(EmbeddedJCA.java:158)
	at org.jboss.narayana.quickstart.jca.common.AbstractTest.afterClass(AbstractTest.java:61)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:601)
	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:45)
	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:42)
	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:36)
	at org.junit.runners.ParentRunner.run(ParentRunner.java:300)
	at org.apache.maven.surefire.junit4.JUnit4TestSet.execute(JUnit4TestSet.java:35)
	at org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:146)
	at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:97)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:601)
	at org.apache.maven.surefire.booter.ProviderFactory$ClassLoaderProxy.invoke(ProviderFactory.java:103)
	at $Proxy0.invoke(Unknown Source)
	at org.apache.maven.surefire.booter.SurefireStarter.invokeProvider(SurefireStarter.java:145)
	at org.apache.maven.surefire.booter.SurefireStarter.runSuitesInProcess(SurefireStarter.java:87)
	at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:69)

public class SimpleTest {

    private static final String JDBC_RAR_FILE_PATH = "src/main/resources/jdbc-xa.rar";

    private static Embedded EMBEDDED;

    @Test
    public void test() throws Throwable {
        EMBEDDED = EmbeddedFactory.create();
        EMBEDDED.startup();
        EMBEDDED.deploy(getURL(JDBC_RAR_FILE_PATH));

        System.out.println("Test...");

        EMBEDDED.undeploy(getURL(JDBC_RAR_FILE_PATH));
        EMBEDDED.shutdown();
    }

    private static URL getURL(final String path) throws MalformedURLException {
        final File f = new File(path);

        return f.toURI().toURL();
    }
}