JUnit 4.12-beta-1 results in UnsupportedOperationException

java.lang.UnsupportedOperationException
        at java.util.Collections$UnmodifiableList$1.set(Collections.java:1412)
        at java.util.Collections.sort(Collections.java:234)
        at org.jboss.arquillian.junit.Arquillian.getChildren(Arquillian.java:73)
        at org.junit.runners.ParentRunner.getFilteredChildren(ParentRunner.java:426)
        at org.junit.runners.ParentRunner.getDescription(ParentRunner.java:351)
        at org.junit.runners.ParentRunner.run(ParentRunner.java:359)
        at org.jboss.arquillian.junit.Arquillian.run(Arquillian.java:155)
        at org.apache.maven.surefire.junit4.JUnit4Provider.execute(JUnit4Provider.java:264)
        at org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:153)
        at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:124)
        at org.apache.maven.surefire.booter.ForkedBooter.invokeProviderInSameClassLoader(ForkedBooter.java:200)
        at org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:153)
        at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:103)