java.lang.NullPointerException

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    • java.lang.NullPointerException at net.sf.ehcache.distribution.MulticastKeepaliveHeartbeatSender$MulticastServerThread.closeSocket(MulticastKeepaliveHeartbeatSender.java:192) at net.sf.ehcache.distribution.MulticastKeepaliveHeartbeatSender$MulticastServerThread.interrupt(MulticastKeepaliveHeartbeatSender.java:186) at net.sf.ehcache.distribution.MulticastKeepaliveHeartbeatSender.dispose(MulticastKeepaliveHeartbeatSender.java:78) at net.sf.ehcache.distribution.MulticastRMICacheManagerPeerProvider.dispose(MulticastRMICacheManagerPeerProvider.java:172) at net.sf.ehcache.CacheManager.shutdown(CacheManager.java:526) at go.<init>(go.java:57) at go.main(go.java:21)
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