java.lang.NullPointerException: null
    at java.util.ComparableTimSort.binarySort(ComparableTimSort.java:258)
    at java.util.ComparableTimSort.sort(ComparableTimSort.java:185)
    at java.util.Arrays.sort(Arrays.java:1312)
    at java.util.Arrays.sort(Arrays.java:1506)
    at java.util.ArrayList.sort(ArrayList.java:1454)
    at java.util.Collections.sort(Collections.java:141)
    at org.infinispan.server.eventlogger.ServerEventLogger.getEvents(ServerEventLogger.java:131)
    at org.infinispan.server.eventlogger.ServerEventLoggerTest$2.call(ServerEventLoggerTest.java:86)
    at org.infinispan.test.TestingUtil.withCacheManagers(TestingUtil.java:1348)
    at org.infinispan.server.eventlogger.ServerEventLoggerTest.testClusteredServerEventLogging(ServerEventLoggerTest.java:66)
------- Stdout: -------
Configuring TestNG with: TestNG652Configurator
Transport protocol stack used = tcp
------- Stderr: -------
Mar 20, 2016 2:14:51 AM org.infinispan.remoting.transport.jgroups.JGroupsTransport start
INFO: ISPN000078: Starting JGroups channel ISPN
Mar 20, 2016 2:14:51 AM org.infinispan.remoting.transport.jgroups.JGroupsTransport viewAccepted
INFO: ISPN000094: Received new cluster view for channel ISPN: [ServerEventLoggerTest-NodeA-31008|0] (1) [ServerEventLoggerTest-NodeA-31008]
Mar 20, 2016 2:14:51 AM org.infinispan.remoting.transport.jgroups.JGroupsTransport startJGroupsChannelIfNeeded
INFO: ISPN000079: Channel ISPN local address is ServerEventLoggerTest-NodeA-31008, physical addresses are [127.0.0.1:7900]
Mar 20, 2016 2:14:51 AM org.infinispan.factories.GlobalComponentRegistry start
INFO: ISPN000128: Infinispan version: Infinispan 'Chakra' 9.0.0-SNAPSHOT
Mar 20, 2016 2:14:52 AM org.infinispan.remoting.transport.jgroups.JGroupsTransport start
INFO: ISPN000078: Starting JGroups channel ISPN
Mar 20, 2016 2:14:52 AM org.infinispan.remoting.transport.jgroups.JGroupsTransport viewAccepted
INFO: ISPN000094: Received new cluster view for channel ISPN: [ServerEventLoggerTest-NodeA-31008|1] (2) [ServerEventLoggerTest-NodeA-31008, ServerEventLoggerTest-NodeB-14491]
Mar 20, 2016 2:14:52 AM org.infinispan.remoting.transport.jgroups.JGroupsTransport viewAccepted
INFO: ISPN000094: Received new cluster view for channel ISPN: [ServerEventLoggerTest-NodeA-31008|1] (2) [ServerEventLoggerTest-NodeA-31008, ServerEventLoggerTest-NodeB-14491]
Mar 20, 2016 2:14:52 AM org.infinispan.remoting.transport.jgroups.JGroupsTransport startJGroupsChannelIfNeeded
INFO: ISPN000079: Channel ISPN local address is ServerEventLoggerTest-NodeB-14491, physical addresses are [127.0.0.1:7901]
Mar 20, 2016 2:14:52 AM org.infinispan.remoting.transport.jgroups.JGroupsTransport start
INFO: ISPN000078: Starting JGroups channel ISPN
Mar 20, 2016 2:14:52 AM org.infinispan.remoting.transport.jgroups.JGroupsTransport viewAccepted
INFO: ISPN000094: Received new cluster view for channel ISPN: [ServerEventLoggerTest-NodeA-31008|2] (3) [ServerEventLoggerTest-NodeA-31008, ServerEventLoggerTest-NodeB-14491, ServerEventLoggerTest-NodeC-47842]
Mar 20, 2016 2:14:52 AM org.infinispan.remoting.transport.jgroups.JGroupsTransport viewAccepted
INFO: ISPN000094: Received new cluster view for channel ISPN: [ServerEventLoggerTest-NodeA-31008|2] (3) [ServerEventLoggerTest-NodeA-31008, ServerEventLoggerTest-NodeB-14491, ServerEventLoggerTest-NodeC-47842]
Mar 20, 2016 2:14:52 AM org.infinispan.remoting.transport.jgroups.JGroupsTransport viewAccepted
INFO: ISPN000094: Received new cluster view for channel ISPN: [ServerEventLoggerTest-NodeA-31008|2] (3) [ServerEventLoggerTest-NodeA-31008, ServerEventLoggerTest-NodeB-14491, ServerEventLoggerTest-NodeC-47842]
Mar 20, 2016 2:14:52 AM org.infinispan.remoting.transport.jgroups.JGroupsTransport startJGroupsChannelIfNeeded
INFO: ISPN000079: Channel ISPN local address is ServerEventLoggerTest-NodeC-47842, physical addresses are [127.0.0.1:7902]
Mar 20, 2016 2:14:52 AM org.infinispan.server.eventlogger.ServerEventLogger textLog
INFO: message #1
Mar 20, 2016 2:14:52 AM org.infinispan.server.eventlogger.ServerEventLogger textLog
WARN: message #2
Mar 20, 2016 2:14:52 AM org.infinispan.server.eventlogger.ServerEventLogger textLog
INFO: message #3
Mar 20, 2016 2:14:52 AM org.infinispan.server.eventlogger.ServerEventLogger textLog
WARN: message #4
Mar 20, 2016 2:14:52 AM org.infinispan.server.eventlogger.ServerEventLogger textLog
INFO: message #5
Mar 20, 2016 2:14:52 AM org.infinispan.server.eventlogger.ServerEventLogger textLog
WARN: message #6
Mar 20, 2016 2:14:52 AM org.infinispan.server.eventlogger.ServerEventLogger textLog
INFO: message #7
Mar 20, 2016 2:14:52 AM org.infinispan.server.eventlogger.ServerEventLogger textLog
WARN: message #8
Mar 20, 2016 2:14:52 AM org.infinispan.server.eventlogger.ServerEventLogger textLog
INFO: message #9
Mar 20, 2016 2:14:52 AM org.infinispan.server.eventlogger.ServerEventLogger textLog
WARN: message #10
Mar 20, 2016 2:14:52 AM org.infinispan.server.eventlogger.ServerEventLogger textLog
INFO: message #11
Mar 20, 2016 2:14:52 AM org.infinispan.server.eventlogger.ServerEventLogger textLog
WARN: message #12
Mar 20, 2016 2:14:53 AM org.infinispan.remoting.transport.jgroups.JGroupsTransport stop
INFO: ISPN000080: Disconnecting JGroups channel ISPN
Mar 20, 2016 2:14:53 AM org.infinispan.remoting.transport.jgroups.JGroupsTransport viewAccepted
INFO: ISPN000094: Received new cluster view for channel ISPN: [ServerEventLoggerTest-NodeA-31008|3] (2) [ServerEventLoggerTest-NodeA-31008, ServerEventLoggerTest-NodeB-14491]
Mar 20, 2016 2:14:53 AM org.infinispan.remoting.transport.jgroups.JGroupsTransport viewAccepted
INFO: ISPN000094: Received new cluster view for channel ISPN: [ServerEventLoggerTest-NodeA-31008|3] (2) [ServerEventLoggerTest-NodeA-31008, ServerEventLoggerTest-NodeB-14491]
Mar 20, 2016 2:14:53 AM org.infinispan.remoting.transport.jgroups.JGroupsTransport stop
INFO: ISPN000082: Stopping the RpcDispatcher for channel ISPN
Mar 20, 2016 2:14:53 AM org.infinispan.remoting.transport.jgroups.JGroupsTransport stop
INFO: ISPN000080: Disconnecting JGroups channel ISPN
Mar 20, 2016 2:14:53 AM org.infinispan.remoting.transport.jgroups.JGroupsTransport viewAccepted
INFO: ISPN000094: Received new cluster view for channel ISPN: [ServerEventLoggerTest-NodeA-31008|4] (1) [ServerEventLoggerTest-NodeA-31008]
Mar 20, 2016 2:14:53 AM org.infinispan.remoting.transport.jgroups.JGroupsTransport stop
INFO: ISPN000082: Stopping the RpcDispatcher for channel ISPN
Mar 20, 2016 2:14:53 AM org.infinispan.remoting.transport.jgroups.JGroupsTransport stop
INFO: ISPN000080: Disconnecting JGroups channel ISPN
Mar 20, 2016 2:14:53 AM org.infinispan.remoting.transport.jgroups.JGroupsTransport stop
INFO: ISPN000082: Stopping the RpcDispatcher for channel ISPN