NPE in FD_SOCK2

[org.infinispan.remoting.transport.jgroups.JGroupsTransport] (jgroups-28,keycloak-b6bb6f754-q8g8p-17553) keycloak-b6bb6f754-q8g8p-17553 sending response for request 319962 to keycloak-7575ccf9cb-pxh4g-54580: null
java.lang.NullPointerException
        at org.jgroups.protocols.FD_SOCK2.getPhysicalAddresses(FD_SOCK2.java:445)
        at org.jgroups.protocols.FD_SOCK2.connectTo(FD_SOCK2.java:395)
        at org.jgroups.protocols.FD_SOCK2.connectToNextPingDest(FD_SOCK2.java:376)
        at org.jgroups.protocols.FD_SOCK2.handle(FD_SOCK2.java:347)
        at org.jgroups.protocols.FD_SOCK2.handle(FD_SOCK2.java:31)
        at org.jgroups.util.ProcessingQueue.process(ProcessingQueue.java:55)
        at org.jgroups.util.ProcessingQueue.add(ProcessingQueue.java:35)
        at org.jgroups.protocols.FD_SOCK2.handleView(FD_SOCK2.java:364)
        at org.jgroups.protocols.FD_SOCK2.down(FD_SOCK2.java:227)
        at org.jgroups.protocols.FailureDetection.down(FailureDetection.java:149)
        at org.jgroups.protocols.VERIFY_SUSPECT2.down(VERIFY_SUSPECT2.java:84)
        at org.jgroups.protocols.pbcast.NAKACK2.down(NAKACK2.java:619)
        at org.jgroups.protocols.UNICAST3.down(UNICAST3.java:611)
        at org.jgroups.protocols.pbcast.STABLE.down(STABLE.java:260)
        at org.jgroups.protocols.pbcast.GMS.installView(GMS.java:676)
        at org.jgroups.protocols.pbcast.ServerGmsImpl.handleViewChange(ServerGmsImpl.java:66)
        at org.jgroups.protocols.pbcast.ParticipantGmsImpl.handleViewChange(ParticipantGmsImpl.java:112)
        at org.jgroups.protocols.pbcast.GMS.handle(GMS.java:991)
        at org.jgroups.protocols.pbcast.GMS.up(GMS.java:855)
        at org.jgroups.protocols.pbcast.STABLE.up(STABLE.java:246)
        at org.jgroups.protocols.UNICAST3.up(UNICAST3.java:470)
        at org.jgroups.protocols.pbcast.NAKACK2.deliverBatch(NAKACK2.java:1010)
        at org.jgroups.protocols.pbcast.NAKACK2.removeAndDeliver(NAKACK2.java:943)
        at org.jgroups.protocols.pbcast.NAKACK2.handleMessageBatch(NAKACK2.java:915)
        at org.jgroups.protocols.pbcast.NAKACK2.up(NAKACK2.java:747)
        at org.jgroups.protocols.VERIFY_SUSPECT2.up(VERIFY_SUSPECT2.java:119)
        at org.jgroups.protocols.FailureDetection.up(FailureDetection.java:193)
        at org.jgroups.protocols.FD_SOCK2.up(FD_SOCK2.java:202)
        at org.jgroups.protocols.MERGE3.up(MERGE3.java:288)
        at org.jgroups.protocols.Discovery.up(Discovery.java:314)
        at org.jgroups.protocols.RED.up(RED.java:119)
        at org.jgroups.protocols.TP.passBatchUp(TP.java:1204)
        at org.jgroups.util.MaxOneThreadPerSender$BatchHandlerLoop.passBatchUp(MaxOneThreadPerSender.java:289)
        at org.jgroups.util.SubmitToThreadPool$BatchHandler.run(SubmitToThreadPool.java:150)
        at org.jgroups.util.MaxOneThreadPerSender$BatchHandlerLoop.run(MaxOneThreadPerSender.java:278)
        at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
        at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
        at java.base/java.lang.Thread.run(Thread.java:829)