java.lang.NullPointerException

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  • java.lang.NullPointerException: null at sun.nio.ch.Util.atBugLevel(Util.java:448) at sun.nio.ch.SelectorImpl.<init>(SelectorImpl.java:40) at sun.nio.ch.EPollSelectorImpl.<init>(EPollSelectorImpl.java:47) at sun.nio.ch.EPollSelectorProvider.openSelector(EPollSelectorProvider.java:18) at java.nio.channels.Selector.open(Selector.java:209) at com.hazelcast.nio.tcp.nonblocking.NonBlockingIOThread.newSelector(NonBlockingIOThread.java:119) at com.hazelcast.nio.tcp.nonblocking.NonBlockingIOThread.<init>(NonBlockingIOThread.java:100) at com.hazelcast.nio.tcp.nonblocking.NonBlockingIOThreadingModel.start(NonBlockingIOThreadingModel.java:138) at com.hazelcast.nio.tcp.TcpIpConnectionManager.start(TcpIpConnectionManager.java:478) at com.hazelcast.instance.Node.start(Node.java:344) at com.hazelcast.instance.HazelcastInstanceImpl.<init>(HazelcastInstanceImpl.java:130) at com.hazelcast.instance.HazelcastInstanceFactory.constructHazelcastInstance(HazelcastInstanceFactory.java:218) at com.hazelcast.instance.HazelcastInstanceFactory.newHazelcastInstance(HazelcastInstanceFactory.java:176) at com.hazelcast.instance.HazelcastInstanceFactory.newHazelcastInstance(HazelcastInstanceFactory.java:126) at com.hazelcast.core.Hazelcast.newHazelcastInstance(Hazelcast.java:58) at com.hazelcast.spi.discovery.DiscoverySpiTest.testSPIAwareMemberGroupFactoryCreateMemberGroups(DiscoverySpiTest.java:284)
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