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We can recommend more relevant solutions and speed up debugging when you paste your entire stack trace with the exception message. Try a sample exception.

Recommended solutions based on your search Connection refused: connect to address localhost/ at Method) at at at at com.hazelcast.nio.tcp.SocketConnector.connectSocketChannel( at com.hazelcast.nio.tcp.SocketConnector.tryToConnect( at at com.hazelcast.util.executor.CachedExecutorServiceDelegate$ at java.util.concurrent.ThreadPoolExecutor.runWorker( at java.util.concurrent.ThreadPoolExecutor$ at at com.hazelcast.util.executor.HazelcastManagedThread.executeRun( at