Exception in thread "main" com.mongodb.MongoTimeoutException: Timed out after 0 ms while waiting to connect. Client view of cluster state is {type=Unknown, servers=[{address=localhost:27017, type=Unknown, state=Connecting}]
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at com.mongodb.BaseCluster.getDescription(BaseCluster.java:128)
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at com.mongodb.DBTCPConnector.getClusterDescription(DBTCPConnector.java:393)
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at com.mongodb.DBTCPConnector.getType(DBTCPConnector.java:565)
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at com.mongodb.DBTCPConnector.isMongosConnection(DBTCPConnector.java:367)
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at com.mongodb.Mongo.isMongosConnection(Mongo.java:645)
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at com.mongodb.DBCollection.findOne(DBCollection.java:865)
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at com.mongodb.DBCollection.findOne(DBCollection.java:843)
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at com.mongodb.DBCollection.findOne(DBCollection.java:789)
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at com.mongodb.DBCollection.findOne(DBCollection.java:778)
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at MongoTest.main(MongoTest.java:27)
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at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
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at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
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at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
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at java.lang.reflect.Method.invoke(Method.java:606)
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at com.intellij.rt.execution.application.AppMain.main(AppMain.java:134)
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