Can't build mod_cluster from master

When trying to build mod_cluster from it's github repository (version 1.3.1.Alpha2), I get two failures on the core module as seen bellow.

$ mvn install
++++
Results :

Failed tests:
AdvertiseListenerImplTestCase.testBasicOperation:135
Wanted but not invoked:
mCMPHandler.addProxy(<Capturing argument>);
-> at org.jboss.modcluster.advertise.AdvertiseListenerImplTestCase.testBasicOperation(AdvertiseListenerImplTestCase.java:135)
Actually, there were zero interactions with this mock.

MulticastSocketFactoryImplTestCase.testMulticastSocketNoCrossTalk:63->testMulticastSocket:112 null

Tests run: 46, Failures: 2, Errors: 0, Skipped: 0

[INFO] ------------------------------------------------------------------------
[INFO] Reactor Summary:
[INFO]
[INFO] mod_cluster (parent) ............................... SUCCESS [ 0.618 s]
[INFO] mod_cluster: Container SPI ......................... SUCCESS [ 0.412 s]
[INFO] mod_cluster: Core .................................. FAILURE [ 4.163 s]
[INFO] mod_cluster: Container (parent) .................... SKIPPED
[INFO] mod_cluster: Container - Catalina .................. SKIPPED
[INFO] mod_cluster: Container - Catalina (standalone) ..... SKIPPED
[INFO] mod_cluster: Container - Tomcat 6 .................. SKIPPED
[INFO] mod_cluster: Container - Tomcat 7 .................. SKIPPED
[INFO] mod_cluster: Container - Tomcat 8 .................. SKIPPED
[INFO] mod_cluster: Container - JBoss Web ................. SKIPPED
[INFO] mod_cluster: Demo (parent) ......................... SKIPPED
[INFO] mod_cluster: Demo - Client ......................... SKIPPED
[INFO] mod_cluster: Demo - Server ......................... SKIPPED
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 5.506 s
[INFO] Finished at: 2014-11-12T18:04:39+01:00
[INFO] Final Memory: 15M/298M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-surefire-plugin:2.17:test (default-test) on project mod_cluster-core: There are test failures.
[ERROR]
[ERROR] Please refer to /home/mbeck/dev/mod_cluster/core/target/surefire-reports for the individual test results.
[ERROR] -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureException
[ERROR]
[ERROR] After correcting the problems, you can resume the build with the command
[ERROR] mvn <goals> -rf :mod_cluster-core
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