java.lang.IndexOutOfBoundsException: Index 0 out of bounds for length 0
	at java.base/jdk.internal.util.Preconditions.outOfBounds(Preconditions.java:64)
	at java.base/jdk.internal.util.Preconditions.outOfBoundsCheckIndex(Preconditions.java:70)
	at java.base/jdk.internal.util.Preconditions.checkIndex(Preconditions.java:248)
	at java.base/java.util.Objects.checkIndex(Objects.java:372)
	at java.base/java.util.ArrayList.get(ArrayList.java:458)
	at java.base/java.util.Collections$SynchronizedList.get(Collections.java:2424)
	at org.jgroups.util.Util.pickNext(Util.java:2686)
	at org.jgroups.protocols.FD_SOCK.determinePingDest(FD_SOCK.java:762)
	at org.jgroups.protocols.FD_SOCK.run(FD_SOCK.java:408)
	at java.base/java.lang.Thread.run(Thread.java:834)