java.net.ConnectException: Connection refused

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java.net.ConnectException: Connection refused
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:339)
at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:200)
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:182)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
at java.net.Socket.connect(Socket.java:579)
at com.gemstone.gemfire.internal.SocketUtils.connect(SocketUtils.java:88)
at com.gemstone.gemfire.internal.SocketUtils.connect(SocketUtils.java:60)
at com.gemstone.gemfire.internal.SocketCreator.connect(SocketCreator.java:1011)
at com.gemstone.gemfire.internal.SocketCreator.connect(SocketCreator.java:946)
at com.gemstone.gemfire.internal.SocketCreator.connect(SocketCreator.java:936)
at com.gemstone.org.jgroups.stack.tcpserver.TcpClient.getServerVersion(TcpClient.java:163)
at com.gemstone.org.jgroups.stack.tcpserver.TcpClient.requestToServer(TcpClient.java:90)
at com.gemstone.org.jgroups.stack.tcpserver.TcpClient.requestToServer(TcpClient.java:78)
at com.gemstone.gemfire.cache.client.internal.AutoConnectionSourceImpl.queryOneLocator(AutoConnectionSourceImpl.java:188)
at com.gemstone.gemfire.cache.client.internal.AutoConnectionSourceImpl.queryLocators(AutoConnectionSourceImpl.java:220)
at com.gemstone.gemfire.cache.client.internal.AutoConnectionSourceImpl.findServer(AutoConnectionSourceImpl.java:132)
at com.gemstone.gemfire.cache.client.internal.ConnectionFactoryImpl.createClientToServerConnection(ConnectionFactoryImpl.java:206)
at com.gemstone.gemfire.cache.client.internal.pooling.ConnectionManagerImpl.prefillConnection(ConnectionManagerImpl.java:794)
at com.gemstone.gemfire.cache.client.internal.pooling.ConnectionManagerImpl.prefill(ConnectionManagerImpl.java:737)
at com.gemstone.gemfire.cache.client.internal.pooling.ConnectionManagerImpl$PrefillConnectionsTask.run2(ConnectionManagerImpl.java:888)
at com.gemstone.gemfire.cache.client.internal.PoolImpl$PoolTask.run(PoolImpl.java:1249)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)

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