XSite tests fail randomly with java.net.BindException

[ERROR] createBeforeClass(org.infinispan.xsite.BackupWithSecurityTest)  Time elapsed: 0.047 s  <<< FAILURE!
org.infinispan.manager.EmbeddedCacheManagerStartupException: org.infinispan.commons.CacheException: Unable to invoke method public void org.infinispan.remoting.transport.jgroups.JGroupsTransport.start() on object of type JGroupsTransport
        at org.infinispan.factories.GlobalComponentRegistry.start(GlobalComponentRegistry.java:252)
        at org.infinispan.manager.DefaultCacheManager.start(DefaultCacheManager.java:686)
        at org.infinispan.manager.DefaultCacheManager.<init>(DefaultCacheManager.java:261)
        at org.infinispan.test.fwk.TestCacheManagerFactory.newDefaultCacheManager(TestCacheManagerFactory.java:394)
        at org.infinispan.test.fwk.TestCacheManagerFactory.newDefaultCacheManager(TestCacheManagerFactory.java:70)
        at org.infinispan.test.fwk.TestCacheManagerFactory.createClusteredCacheManager(TestCacheManagerFactory.java:198)
        at org.infinispan.test.fwk.TestCacheManagerFactory.createClusteredCacheManager(TestCacheManagerFactory.java:189)
        at org.infinispan.xsite.AbstractXSiteTest$TestSite.addClusterEnabledCacheManager(AbstractXSiteTest.java:259)
        at org.infinispan.xsite.AbstractXSiteTest$TestSite.createClusteredCaches(AbstractXSiteTest.java:233)
        at org.infinispan.xsite.AbstractXSiteTest.createSite(AbstractXSiteTest.java:96)
        at org.infinispan.xsite.BackupWithSecurityTest.access$201(BackupWithSecurityTest.java:23)
        at org.infinispan.xsite.BackupWithSecurityTest.lambda$createSite$0(BackupWithSecurityTest.java:60)
        at org.infinispan.security.Security.doAs(Security.java:118)
        at org.infinispan.xsite.BackupWithSecurityTest.createSite(BackupWithSecurityTest.java:60)
        at org.infinispan.xsite.AbstractMultipleSitesTest.createSites(AbstractMultipleSitesTest.java:87)
        at org.infinispan.xsite.AbstractXSiteTest.createBeforeClass(AbstractXSiteTest.java:51)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:84)
        at org.testng.internal.Invoker.invokeConfigurationMethod(Invoker.java:564)
        at org.testng.internal.Invoker.invokeConfigurations(Invoker.java:213)
        at org.testng.internal.Invoker.invokeConfigurations(Invoker.java:138)
        at org.testng.internal.TestMethodWorker.invokeBeforeClassMethods(TestMethodWorker.java:175)
        at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:107)
        at org.testng.TestRunner.privateRun(TestRunner.java:767)
        at org.testng.TestRunner.run(TestRunner.java:617)
        at org.testng.SuiteRunner.runTest(SuiteRunner.java:348)
        at org.testng.SuiteRunner.access$000(SuiteRunner.java:38)
        at org.testng.SuiteRunner$SuiteWorker.run(SuiteRunner.java:382)
        at org.testng.internal.thread.ThreadUtil$2.call(ThreadUtil.java:64)
        at java.util.concurrent.FutureTask.run(FutureTask.java:266)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:748)
Caused by: org.infinispan.commons.CacheException: Unable to invoke method public void org.infinispan.remoting.transport.jgroups.JGroupsTransport.start() on object of type JGroupsTransport
        at org.infinispan.commons.util.SecurityActions.lambda$invokeAccessibly$0(SecurityActions.java:95)
        at org.infinispan.commons.util.SecurityActions.doPrivileged(SecurityActions.java:83)
        at org.infinispan.commons.util.SecurityActions.invokeAccessibly(SecurityActions.java:88)
        at org.infinispan.commons.util.ReflectionUtil.invokeAccessibly(ReflectionUtil.java:165)
        at org.infinispan.factories.AbstractComponentRegistry$PrioritizedMethod.invoke(AbstractComponentRegistry.java:869)
        at org.infinispan.factories.AbstractComponentRegistry.invokeStartMethods(AbstractComponentRegistry.java:635)
        at org.infinispan.factories.AbstractComponentRegistry.internalStart(AbstractComponentRegistry.java:624)
        at org.infinispan.factories.AbstractComponentRegistry.start(AbstractComponentRegistry.java:549)
        at org.infinispan.factories.GlobalComponentRegistry.start(GlobalComponentRegistry.java:239)
        ... 35 more
Caused by: org.infinispan.commons.CacheException: Unable to start JGroups Channel
        at org.infinispan.remoting.transport.jgroups.JGroupsTransport.startJGroupsChannelIfNeeded(JGroupsTransport.java:507)
        at org.infinispan.remoting.transport.jgroups.JGroupsTransport.start(JGroupsTransport.java:437)
        at sun.reflect.GeneratedMethodAccessor163.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at org.infinispan.commons.util.SecurityActions.lambda$invokeAccessibly$0(SecurityActions.java:91)
        ... 43 more
Caused by: java.net.BindException: No available port to bind to in range [8400 .. 8409]
        at org.jgroups.util.Util.createServerSocketChannel(Util.java:3539)
        at org.jgroups.blocks.cs.NioServer.<init>(NioServer.java:71)
        at org.jgroups.protocols.TCP_NIO2.start(TCP_NIO2.java:97)
        at org.jgroups.stack.ProtocolStack.startStack(ProtocolStack.java:861)
        at org.jgroups.JChannel.startStack(JChannel.java:1017)
        at org.jgroups.JChannel._preConnect(JChannel.java:886)
        at org.jgroups.JChannel.connect(JChannel.java:390)
        at org.jgroups.JChannel.connect(JChannel.java:384)
        at org.infinispan.remoting.transport.jgroups.JGroupsTransport.startJGroupsChannelIfNeeded(JGroupsTransport.java:505)
        ... 48 more