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java.util.concurrent.RejectedExecutionException: null at java.util.concurrent.ThreadPoolExecutor$AbortPolicy.rejectedExecution(ThreadPoolExecutor.java:1774) at java.util.concurrent.ThreadPoolExecutor.reject(ThreadPoolExecutor.java:768) at java.util.concurrent.ThreadPoolExecutor.execute(ThreadPoolExecutor.java:656) at java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:78) at com.datastax.driver.core.ControlConnection.onDown(ControlConnection.java:429) at com.datastax.driver.core.Cluster$Manager.onDown(Cluster.java:630) at com.datastax.driver.core.Host$HealthMonitor.setDown(Host.java:178) at com.datastax.driver.core.Host$HealthMonitor.signalConnectionFailure(Host.java:195) at com.datastax.driver.core.ControlConnection.reconnectInternal(ControlConnection.java:172) at com.datastax.driver.core.ControlConnection.connect(ControlConnection.java:86) at com.datastax.driver.core.Cluster$Manager.<init>(Cluster.java:548) at com.datastax.driver.core.Cluster$Manager.<init>(Cluster.java:503) at com.datastax.driver.core.Cluster.<init>(Cluster.java:66) at com.datastax.driver.core.Cluster.buildFrom(Cluster.java:94) at com.datastax.driver.core.Cluster$Builder.build(Cluster.java:484) at com.datastax.driver.core.ExceptionsTest.noHostAvailableException(ExceptionsTest.java:180)