ehcache 啓動報錯Error starting heartbeat

 [ERROR] [distribution.MulticastRMICacheManagerPeerProvider:init:98] :: Error starting heartbeat. Error was: error setting options 
java.net.SocketException: error setting options 
at java.net.PlainDatagramSocketImpl.join(Native Method) 
at java.net.PlainDatagramSocketImpl.join(PlainDatagramSocketImpl.java:172) 
at java.net.MulticastSocket.joinGroup(MulticastSocket.java:277) 
at net.sf.ehcache.distribution.MulticastKeepaliveHeartbeatReceiver.init(MulticastKeepaliveHeartbeatReceiver.java:88) 
at net.sf.ehcache.distribution.MulticastRMICacheManagerPeerProvider.init(MulticastRMICacheManagerPeerProvider.java:95) 
at net.sf.ehcache.CacheManager.init(CacheManager.java:327) 

at net.sf.ehcache.CacheManager.<init>(CacheManager.java:253) 

解決方式：

<cacheManagerPeerProviderFactory 

class="net.sf.ehcache.distribution.RMICacheManagerPeerProviderFactory" 
properties="peerDiscovery=automatic, 
hostName=localhost, 
multicastGroupAddress=230.0.0.1, 
multicastGroupPort=4446, timeToLive=1"/>